Question1: If there are third-party cabinets in the computer room, the inspection contents of the third-party cabinets include: (Multiple choice)
Question2: Which of the following descriptions of RAID5 are correct? (Multiple choice)
Question3: Between the two nodes of the Huawei N8000 (V200R001) cluster NAS, how many lines of redundancy are there between the heartbeat links?
Question4: Huawei's all-flash storage devices need to be planned and designed before deployment. Which of the following options need to be planned for storage networking? (Multiple choice)
Question5: Which of the following features in Huawei Oceanstor 9000 (C30) does not require the corresponding license to be activated?
Question6: The metadata in Oceanstor 9000 object storage implements redundancy between nodes through mirroring, and each copy is an independent and complete copy, so as to improve the security of metadata and the performance of parallel metadata
Question7: In the oceanstor18000 system, svp can be used to manage the entire system, and svp can be interconnected with other engine nodes through a pcie switch
Question8: An enterprise plans to purchase Huawei all-flash storage devices to deploy storage services. In order to ensure the security of storage business data, the storage devices cannot communicate with the external network. After the storage device is deployed, you can configure eService to manage the operation and maintenance of the storage device to improve the operation and maintenance efficiency.
Question9: When performing data backup, in order to save space, data may be deduplicated. For example, duplicate data blocks A and B will only physically save one copy of the data, and the corresponding index of block A or B will be deleted.
Question10: Taking data center A as the priority site and data center B as the non-priority site as an example, when the user does not configure an arbitration server or the arbitration server cannot be accessed, the HyperMetro arbitration mode is the static priority mode, and when arbitration occurs in the HyperMetro Pair () the site end obtains arbitration and provides services.
Question11: In order to improve the reliability of its important business, an enterprise has deployed a local active-active solution in computer room A and computer room B of a data center. Regarding this solution, which of the following statements is correct?
Question12: After Engineer C completes the installation of Huawei distributed storage on site, he powers on and configures big data services. In the following description of the big data business configuration process, the correct option is?
1Create an account
2 Configure the subnet
3 Create a file system
4Associated file system
5Create a NameNode Zone 6Create a Global Zone
Question13: The Huawei Oceanstor 9000 storage system adopts layered security maintenance. Which item does not belong to the application layer security content?
Question14: The peak write bandwidth of an application is 10MB/s, the average write bandwidth is 200KB/s, and the average write IO size is 4KB (the overhead of private information is about 11%, and the bandwidth utilization rate is 70%).
If the FC network is used and the synchronous remote replication mode is set (considering the overhead of private information), which one is the correct requirement for network bandwidth?
Question15: Which of the following descriptions about Wushan SQL is wrong?
Question16: In order to better operate and maintain Huawei OceanStor 6810 V5 equipment, maintenance engineer A consults relevant product manuals to understand its features. Which of the following options describe the product features are correct? (Multiple choice)
Question17: Which of the following technologies are used to achieve cross-site data reliability when using the block service active-active feature in Huawei distributed storage? (Multiple choice)
Question18: A company purchased two sets of Huawei scale-out file storage and deployed them in the production data center and disaster recovery data center respectively. The storage administrator needs to create a replication zone channel between the two storage systems. Which of the following option descriptions is correct?
Question19: Which of the following statements about big data processing technology is? (Multiple choice)
Question20: After purchasing Huawei's all-flash storage device, which of the following options must be planned when planning basic storage services? (Multiple choice)
Question21: Which of the following options is incorrect for the metadata description of Huawei Oceanstor 9000 storage system?
Question22: In Huawei's HyperMetro active-active solution, when the active-active data center link fails, the priority site can submit to arbitration first, so that the priority site can win the arbitration first and continue to provide host services.
Question23: Which of the following statements about the characteristics of Huawei SmartPartitian is correct?
(Multiple choice)
Question24: Which of the following types of files is not recommended for the ASCII transfer mode in the FTP protocol?
Question25: It is the following layer that completes the codec work in the FCoE protocol.
Question26: In the file system, which scenarios will modify the metadata? (Multiple choice)
Question27: The storage device generates a fault alarm. Which of the following methods cannot collect storage system fault information?
Question28: Which of the following are the advantages of deduplication and compression technology? (Multiple choice)
Question29: What are the advantages of using object storage when building a video surveillance cloud?
(Multiple choice)
Question30: In a customer scenario, the front-end uses a GE network and the back-end uses a 10GE network.
Which of the following options is the correct way to use the corresponding interface?
Question31: The backup scheme design process is divided into multiple stages. Which of the following stages is in the correct order?
Question32: In the "Oceanstor 9000 network diagram", what type of switch b should be?
Question33: PCIe protocol components include: (Multiple choice)
Question34: Which of the following backup types arranges the space occupied by backup media in the correct order:
Question35: After a failure occurs, it is possible to recover the data in case of system failure or disaster ()
Question36: Which of the following storage units does the Huawei N8000 clustered NAS system use? (Multiple choice)
Question37: In Huawei Oceanstor 9000, the client that processes the write request will slice the data according to the protection level specified by the file, write the data slices to the power-saving memory on the corresponding node, and then calculate the calibration by each node. Check the data sheet and write it into the power-saving memory of each 2 nodes. After all nodes are successfully written into the power- saving memory, the write operation is successful.
Question38: Regarding the scenario of small I0 write cache in Huawei's distributed storage multi-level cache technology, which of the following order is correct?
1.Write to the WAL log area based on the SSD slow disk, and return to the host to complete the write operation
2.When the memory write cache reaches a certain water level, the data starts to be flushed down
3.Data writing to RAM-based Write Cache
4.Small IOs will be written to the SSD cache of the node first, waiting to be aggregated into large IOs and then written to HDD
Question39: The online upgrade method is a highly reliable and highly available upgrade method that is performed without service interruption. In the case where the user upgrade cannot interrupt the service, it is better than the online upgrade performed in batches, and has less impact on service performance.
Question40: In the Huawei Oceanstor 9000 system, which client type is not supported by NFS sharing?
Question41: The value of Huawei OceanStor 9000 InfoTier is reflected in: (Multiple choice)
Question42: Which of the following options is not a typical application scenario of cloud storage?
Question43: Which of the following is not a step in the fault handling process?
Question44: With the advent of the era of big data, storage technology is also undergoing changes. Regarding the changes in storage technology, which of the following is correct? (Multiple choice)
Question45: Which storage tier can the smarttier of Oceanstor v3 storage not be set to?
Question46: The built-in script of the disaster recovery management software OceanStor BCManager eReplication supports one-click failure recovery for Oracle and SQL Server applications. Which of the following steps is not included in the one-click failure recovery?
Question47: In Huawei's distributed storage, the block service asynchronous remote replication architecture is based on the block service cluster to build an asynchronous replication relationship. Based on differential data, the data of the master and slave volumes are periodically synchronized. After the data synchronization of the last synchronization cycle is completed, the At the beginning of the current synchronization cycle, all data generated on the master volume will be written to the slave volume during this synchronization.
Question48: Which of the following are Huawei's intra-city disaster recovery solutions? (Multiple choice)
Question49: Which of the following statements about the Thin LUN and Thick LUN stored in Huawei Oceanstor is wrong? (Multiple choice)
Question50: Parallel deduplication is highly reliable. The built-in failover capability can make the backup job uninterrupted. Even if one node in the grid is unavailable, the remaining nodes can continue to work and take over the backup. Faulty nodes are automatically repaired in the background, and then join the network to continue working.
Question51: Which of the following data can be exported through DeviceManageri? (Multiple choice)
Question52: When analyzing and adjusting the factors affecting the performance of the Huawei Oceanstor 9000 client, the steps involved are: A - Check and adjust external interference factors. B - View performance metrics for performance monitoring tools. C - Check and adjust system configuration Which should be the correct order?
Question53: The recommended scenarios for installing iDA in a virtual machine are: (Multiple choice)
Question54: Regarding the characteristics of a single file system in Huawei's distributed storage, which of the following options are correct? (Multiple choice)
Question55: Which one of the following is incorrect when the description about Huawei Oceanstor v3 smarterase technology is incorrect?
Question56: Which of the following descriptions about VCS services in clustered NAS systems is incorrect?
Question57: A user plans to deploy a master-standby disaster recovery system. The distance between the master and backup sites is about 1000KM, and the RPO is required to be less than 1 minute.
Asynchronous remote replication is recommended.
Question58: Which of the following descriptions about the data backup strategy is correct? (Multiple choice)
Question59: In the OceanStor V3 storage system, when configuring LUN Copy, you can choose different copy speeds based on business characteristics and storage system performance. If you try not to affect device performance during copying, which speed should you choose?
Question60: An enterprise purchased a set of distributed storage system, which contains 50 nodes. Engineer C plans and designs the installation and deployment of the storage system before deployment. According to the recommended reference configuration, when planning the network configuration, it is necessary to plan to use aggregation switches.
Question61: A large Internet company A has purchased Huawei hyper-converged storage to build an IT infrastructure platform. Which of the following scenarios can it be applied to? (Multiple choice)
Question62: Huawei Oceanstor v3 smartdedupe& smartcompression will definitely consume the system resources of the storage system during data deduplication and compression, thus reducing the performance of the storage system
Question63: Which statement is incorrect about Huawei Oceanstor v3 converged storage system?
Question64: In the OceanStor V3 storage system, regarding the remote replication consistency group, which item is wrong?
Question65: In the HyperMetro active-active data center solution, if a member LUN of an array has bad blocks, which of the following statements is incorrect?
Question66: In synchronous remote replication, which of the following descriptions is correct regarding the processing flow of the storage receiving the I/O request sent by the server?
Question67: Which of the following functions and features of Huawei's SmartVirtualization technology are correct? (Multiple choice)
Question68: When accessing the Oceanstor SystemRepoter report tool, you need to enter https://IP:8088 in the browser address: where the IP is the business management IP of the Oceanstor 9001 system.
Question69: Among the following configuration strategies, which configurations can improve storage system security? (Multiple choice)
Question70: When configuring active/standby disaster recovery, which of the following conditions must be met for the LUNs on the primary and backup arrays?
Question71: The control information flow and service data flow between the engines of Huawei 18000 v3 series products are transmitted through which of the following components?
Question72: A company purchased a set of Huawei distributed storage, and used QoS flow control technology to control the user's I/O when deploying block services. Which mechanism can be used to manage the I/O queue?
Question73: In the storage planning and design process, which of the following does not belong to the business planning process?
Question74: The controller in Huawei's hybrid all-flash memory fails, and the storage system tries to reset.
During the reset process, the data is stored in the cache. If the reset fails, the data in the cache will be written to the hard disk of the controller () to avoid data loss.
Question75: The SmartDedupe&SmartCompression technology in Huawei Oceanstor all-flash storage simultaneously calculates similar fingerprints (SFP) and weak hash fingerprints (FP) when writing data. If the fingerprint already exists in the local fingerprint table, online deduplication is performed; If it is new data, perform compression and save similar fingerprints, and then perform background deduplication processing.
Question76: Data protection mainly has 5 goals: prevent physical errors, prevent logical failures, meet RTO and RPO, and meet data () time.
Question77: In the VMware environment, the scenario where VADP cannot be used for backup is:
Question78: Which of the following is not a feature of Oceanstor cloud service?
Question79: The block service provides a linked clone mechanism, which supports the creation of multiple snapshots based on a cloned volume. The data content of each snapshot volume when it is just created is consistent with the data content in the cloned volume. Subsequent modifications to the cloned volume will not affect the original snapshots and other cloned volumes.
Question80: Which of the following application scenarios can be supported by combining smartvirtualization and smartmigration? (Multiple choice)
Question81: Which of the following options belong to the collection items for storing fault environment information? (Multiple choice)
Question82: The worm feature of Huawei Oceanstor v3 is to add the worm attribute on the basis of the ordinary file system, so that the files in the file system can only be read and cannot be written.
Question83: The Kunpeng 920 chip of Huawei's all-flash memory storage system, through CPU grouping, service grouping, inter-core lock-free, and three-level many-core expansion technology, realizes performance that varies with the number of controller nodes, the number of CPUs in the controller, and the number of CPUs. Performance increases linearly.
Question84: Which of the following options is incorrect in describing the characteristics of Huawei's distributed storage intelligent load balancing?
Question85: Which of the following descriptions about distributed storage is correct? (Multiple choice)
Question86: Where can the data replication technology for disaster recovery not be implemented?
Question87: Oceanstor v3 storage series products support the cifs user quota function
Question88: A customer's initial backup capacity is 1T, and the average daily data increment is 10G. The backup strategy is to do a full backup once a week, and a differential backup every day from Tuesday to Sunday.
The storage period of full backup and additional backup data is 4 weeks. Which value should the required backend capacity not be less than without considering deduplication, redundancy ratio, replication, etc.?
Question89: Which item is wrong in the description of OceanStor V3 storage array synchronous remote replication?
Question90: A certain Huawei Oceanstor 9000 cluster period uses back-end 10GE networking. After the networking and wiring are completed, do the following configurations for the 10GE switch? (Multiple choice)
Question91: In the storage device, the way to realize the RAID function includes which of the following? (Multiple choice)
Question92: Which of the following descriptions about Huawei OceanStor V3 cascaded 3DC and parallel 3DC is correct? (Multiple choice)
Question93: In Huawei's storage system, ____________ is an operation and maintenance tool in the three major areas of integrated cloud computing, servers, and storage.
Question94: Huawei hyper-convergence has the function of adaptive global deduplication and compression, which can provide significant space reduction and reduce user TCO under reasonable resource consumption. The implementation process of adaptive local compression is correctly sorted
Question95: Which of the following options belong to the use conditions of hyperclone? (Multiple choice)
Question96: The smart acc acceleration compression card module does not support hot swap.
Question97: The administrator of Huawei Oceanstor 9000 DeviceManager can quickly complete the initialization; initialization configuration items include: (Multiple choice)
Question98: What operating systems does eReplication support? (Multiple choice)
Question99: Which of the following statement about the fault diagnosis in Oceanstor 5300 v3 is correct?
(Multiple choice)
Question100: When the storage business model is continuous large IO, bandwidth is used as a measure of performance.
Question101: Which of the following interface modules is used on SX6018 to upgrade firewall software and other advanced debugging?
Question102: Which of the following statements about Huawei's active-active data center deployment is correct?
(Multiple choice)
Question103: Regarding the characteristics of Huawei's hybrid flash storage block service, which of the following statements are correct? (Multiple choice)
Question104: NFS is a method for realizing disk file sharing between Unix systems, and it supports a system protocol for applications to access data located in server disks through the network on the client side.
Question105: Which of the following is correct about the use of the two performance characteristics of hierarchical storage and smartcache?
Question106: In the HyperMetro feature, the local storage device, the remote storage device and the arbitration server are composed (), and the application server can realize cross-site data access.
Question107: In an enterprise's IP SAN network, the host resource occupancy rate is always high. After investigation, it is found that the Initiator software in the host takes up a lot of resources to complete the conversion of iSCSI packets to TCP/IP packets. The enterprise engineer proposed several storage network upgrade solutions. Which of the following solutions can solve the above problems? (Multiple choice)
Question108: Which of the following options should be paid attention to when analyzing the requirements of storage projects? (Multiple choice)
Question109: An enterprise requires less storage space and a short backup window for data backup. At this time, which backup type should we suggest the enterprise to adopt?
Question110: If a customer wants to buy a Huawei storage device for video surveillance and backup and archiving data services, which indicator is recommended to choose a suitable Huawei storage device?
Question111: Cloudera Hadoop docking process includes:
1 Data preparation.
2 Verify the docking status
3 Install HDFS Plugin to Cloudera Hadoop nodes and clients.
4 Migrating business data
Which of the following options is in the correct docking order:
Question112: Huawei's hybrid flash storage adopts the RAID 2.0+ software architecture, which realizes the virtualization of the underlying media and upper-layer resources, and solves the problem of rapid data reconstruction and intelligent allocation of resources.
Question113: The daily inspection performance indicators of the big data storage system include: (Multiple choice)
Question114: In the following description, which options will cause value-added service failures? (Multiple choice)
Question115: Which of the following options is correct for the description of the multi-version function of the bucket? (Multiple choice)
Question116: For traditional RAID, what are the advantages of raid 2.0? (Multiple choice)
Question117: The N8000 provides a fencing function to avoid split brains. Which of the following is an incorrect description of the fencing function?
Question118: When deploying Huawei distributed storage, you can distinguish the service types (blocks, files, big data, objects) provided by the cluster by importing licenses for different services.
Question119: The fully balanced (Active-Active) architecture of Huawei's all-flash storage guarantees the high- concurrency transaction business of a securities company. Regarding this architecture, which of the following statements is correct? (Multiple choice)
Question120: When configuring nfs file sharing for Oceanstor v3 storage series products, which of the following options is not a nfs configuration item?
Question121: Internet company A uses Huawei's hyper-converged infrastructure to build the company's information platform, which significantly improves the reliability of the platform. Which of the following options reflect this characteristic? (Multiple choice)
Question122: Scale-out horizontal expansion can improve capacity and performance at the same time
Scale-up, horizontal expansion cannot improve capacity and performance at the same time. (Multiple choice)
Question123: Which of the following statements about Huawei Oceanstor v3 remote replication time slice technology is correct?
Question124: OceanStor900 uses general-purpose x86 architecture hardware to deploy Scale-out NAS systems.
All nodes realize high concurrency and high performance of the entire system data, mainly relying on three types of networking types: IB, 10GE and PCIE, among which the network performance of PCIE is higher. Well, easier to scale and manage.
Question125: If the user has logged in to Simpana Administrative Console before installation, the installed node cannot be displayed in the client list after login (not even after refreshing). At this point, you need to exit the Simpana Administrative Console and log in again to see the newly installed node.
Question126: The CSI plug-in auxiliary service provided by the Kubernetes community is implemented based on the CSI specification and deployed on all K8s nodes to complete operations such as volume creation/deletion, mapping/unmapping, mounting/unmounting, etc.
Question127: Which of the following is not a component that must be included in the architecture of the NAS system?
Question128: The Wushan file system in Oceanstor 9000 adopts the object storage method, but it only uses object storage for data, and does not use object storage for metadata
Question129: The business systems A, B, and C of an enterprise are of high, medium, and low importance respectively. It is feasible to carry out strategic planning according to which of the following description?
(Multiple choice)
Question130: A company purchased a set of Huawei distributed storage to provide object storage and file storage services. The administrator allows users to access HTTP in the system to use object and file services at the same time.
Question131: Compared with ordinary file backup, the components that need to be deployed more when deploying VMware backup are?
Question132: The link layer of the IB protocol mainly provides functions such as sequential forwarding and segmentation of information packets.
Question133: Which of the following DAV (distributed authoring and versioning) can solve those problems that the
http protocol cannot solve? (Multiple choice)
Question134: To use smartmigration to completely migrate the business on the source lun to the target lun, which of the following conditions need to be met? (Multiple choice)
Question135: Based on the high-reliability design of the OceanStor storage system, HyperMetro has newly designed some solution-level high-reliability technologies to maximize the reliability of the storage active- active solution. HyperMetro's high reliability technology is mainly reflected in which of the following aspects? (Multiple choice)
Question136: Common backup types include full backup, () and differential incremental backup.
Question137: The eDevLun stored in Oceanstor v3 refers to the third-party heterogeneous device volume connected to Huawei storage
Question138: The customer put forward the requirement of RPO=0 and RTO=0, and the colleague chose the active-standby synchronous remote replication disaster recovery solution. This solution:
Question139: In the Huawei Oceanstor 9000 software architecture, the distributed object storage layer is based on the distributed file storage layer.
Question140: In the Huawei Oceanstor 9000 storage system, when a certain InfoReplicator is in a split state, which of the following statements is incorrect?
Question141: OceanStor9000 supports clients of different protocols to access the same directory or file at the same time. For example, Windows client (CIFS protocol), Linux client (NFS protocol), Mac OS X client (CIFS protocol or NFS protocol).
Question142: An enterprise has purchased a Huawei distributed storage system, and now needs to plan and deploy the network. Among the following options, which network planes must be planned? (Multiple choice)
Question143: In the FusianStorage system, a system deploys at least 3 MDCs to form an MDC cluster. When the system starts, the ______ cluster elects the master MDC among multiple MDCs. The master MDC monitors other MDCs. When the master MDC fails, a new MDC is generated. Primary MDCO (English abbreviation)
Question144: Which is correct about RAID10? (Multiple choice)
Question145: The big data service supports the resource statistics function of the file system, which file system resources can be statistically queried? (Multiple choice)
Question146: An account is a credential for using an object storage service (compatible with the Amazon S3 interface), and its management functions do not include:
Question147: In Huawei Oceanstor v3 smartpartition, a lun or file system can only be assigned to the partition that is consistent with its working engine id
Question148: Which one is correct about the Oceanstor v3 storage system prefetch strategy?
Question149: When accessing the LINUX client of the Huawei Oceanstor 9000 cluster, the number of concurrent NFS clients can be appropriately reduced to improve access performance.
Question150: In the HyperMetro active-active solution, it is usually necessary to install UltraPath multipath software on the main server
Question151: Which of the following descriptions about the characteristics of IP SAN networks are correct?
(Multiple choice)
Question152: The Oceanstor 9000 big data storage system includes multiple subsystems, which one is used for file storage?
Question153: Engineer A finds abnormalities in the storage during routine inspection, calls the Huawei technical support hotline for help, and the technical support guides Engineer A to complete the collection of service host information. The operating system of the business host is Linux, which of the following collected commands are correct? (Multiple choice)
Question154: Which of the following statements about backup networking LAN-free and Server-free is correct?
Question155: Smart City A plans to purchase Huawei's distributed storage to store its traffic surveillance video.
Which of the following products are available? (Multiple choice)
Question156: The application scenarios of Huawei Oceanstor 9000InfoReplicator features include: (Multiple choice)
Question157: Use Huawei OceanStor Toolkit V100R001 to perform inspection operations, which of the following is not included in the inspection wizard?
Question158: HyperMetro ensures real-time synchronization of data between storage arrays at two sites through the real-time cross-site data mirroring function. When the data center array receives write I/O, it needs to record the write log. In the log, only the address information is recorded, and the specific write data content is not recorded. The log is recorded in a memory space with power-failure protection for good performance.
Question159: Which of the following options does not belong to the software module included in Huawei Oceanstor
9000 products?
Question160: Among Huawei's many disaster recovery solutions, which of the following scenarios can eReplication be used for? (Multiple choice)
Question161: Which of the following cables does OceanStor V3 18800 products not support?
Question162: Which of the following options describe the reasons for the rapid development of enterprise-level cloud storage? (Multiple choice)
Question163: When the bbu of the storage device fails, which of the following fault handling methods is incorrect?
Question164: When choosing the type of data backup, which of the following is wrong?
Question165: An enterprise plans to use the time when the business is not busy on the National Day to power off the IT room for circuit safety maintenance. After the circuit maintenance is completed, it is necessary to power on the power-off equipment. Which of the following equipment power-on sequences is correct?
Question166: Erasure code redundancy technology supports higher reliability and more flexible redundancy strategies than traditional RAID algorithms. Which of the following is an incorrect description of the Erasure code principle?
Question167: Object service uses Bucket Policy to control the access rights of a single user or multiple users to access buckets or objects under buckets, and which specific object operations can be controlled?
(Multiple choice)
Question168: Which of the following options are Huawei InfoTurbo enhanced features? (Multiple choice)
Question169: Which of the following ideas and methods for solving QceanStor9000 DeviceManager. server failures are correct? (Multiple choice)
Question170: Colleagues customize a dual-active disaster recovery solution for the customer. The customer already has a third-party storage system and plans to purchase a new set of OceanStor 5300 V3, and place these two sets of equipment in two data centers to implement dual-active disaster recovery. The solution is?
Question171: When restarting the Huawei Oceanstor 9000 node, if the log information shows "phy: 25; handle SMP req 2" and "phy: 26; handle SMP req 2", it means that the system disk is faulty, which may cause it to fail to start normally.
Question172: OceanStor 9000 uses Erasure code technology to protect data. If there are 6 nodes in a site, and the customer wants to ensure that the data can still be restored even if 3 disks are damaged in a stripe, the redundancy code can be used. The remaining protection levels are: (Multiple choice)
Question173: Bank A has purchased all-flash storage using the Smart Matrix fully interconnected and highly reliable architecture to ensure that its core business continues to be online. Regarding the characteristics of this architecture, which of the following statements are correct? (Multiple choice)
Question174: A certain storage device adopts the data protection method of RAID 6 DP, so which of the following statements are correct? (Multiple choice)
Question175: An Oceanstor 9000 storage system consisting of 6 P36 nodes consists of which of the following parts? (Multiple choice)
Question176: In a large and medium-sized database application, files such as data, logs, and modification records are stored in associated LUN1, LUN2, and LUN3, and remote copy tasks 1, 2, and 3 are created respectively, and the engineer remotely copies these three tasks are added to the consistency group. In this case, which of the following statements are correct? (Multiple choice)
Question177: Huawei Oceanstor v3 smartQos has different priorities for each lun, scheduling different computing, cache and other system resources, and ensuring the normal business of high-priority luns when resources are tight
Question178: The infoEqualizer function of Huawei Oceanstor 9000 (30) is restricted by the license, including the application of dynamic names, static domain names, and partition functions, and supports scheduling loads in a round-robin manner
Question179: When OceanStor V3 creates a remote replication pair, which of the following is the default synchronization speed?
Question180: Which of the following is correct about the NDMP protocol? (Multiple choice)
Question181: Which of the following protocols uses the SHA-256 algorithm?
Question182: In the Huawei Oceanstor 9000 system, a file pool refers to a collection of files that meet certain characteristics, and the file pool policy defines the rules for how the file pool is stored in the node pool.
Question183: In the Huawei Oceanstor 9000InfoReplicator feature. Pair is a data replication relationship, which describes the source and target of data replication. Which of the following statements about the state transition of Pair is incorrect? (Multiple choice)
Question184: In the process of dealing with storage failures, which of the following principles should be followed?
(Multiple choice)
Question185: If the alarm indicator of the storage controller box is yellow, it means that there is a critical alarm in the storage system.
Question186: Regarding the description of the technical principle of Oceanstor v3 remote replication poisoning dcl small bitmap, which items are incorrect? (Multiple choice)
Question187: The object storage service (compatible with Amazon S3 and OpenStack Swift) provided by OceanStor9000 provides a unified RESTful API to the outside world, and the client can access the storage node through the STful API to realize data storage.
Question188: Internet company A uses Huawei's hyper-converged infrastructure to build the company's information platform, which greatly facilitates operation and maintenance management. Which of the following options reflect this characteristic? (Multiple choice)
Question189: An enterprise plans to create continuous data protection for its real-time transaction business, and ensure that users can read, write, and analyze historical data at different time points without affecting the business. Which of the following features can achieve this requirement? (Multiple choice)
Question190: Which of the following options does not belong to the characteristics of distributed storage big data service solutions?
Question191: Which of the following statements about snapshots is correct?
Question192: When using the files in the Oceanstor v3 quota, which of the following operations does not need to be checked?
Question193: The Oceanstor 5800 v3 storage system controller box and hard disk box are interconnected by mini sas interface, and the maximum transmission rate can reach 8GB/s.
Question194: Huawei's distributed storage can provide a big data storage platform by adopting a scale-out architecture and using general server hardware for the characteristics of big data.
Question195: In the local high availability solution using Huawei HyperMirror, which of the following statements is correct? (Multiple choice)
Question196: Oceanstor 9000 uses Erasure code technology to protect data. If there are 7 nodes in a certain period, and the customer wants the disk utilization rate to reach at least 70%, the redundant protection levels that can be used are: (Multiple choice)
Question197: Which of the following descriptions about the snapshot backup of the OceanStor backup solution is correct? (Multiple choice)
Question198: According to the following structure diagram, please drag and drop each stage of equipment selection to the correct position Equipment Selection Requirements Industry exchange comparison Technical standard confirmation Supplier Equipment Testing Equipment selection report Equipment Purchase Equipment acceptance
Question199: Each scsi device on the host has a scsi address. Which of the following parts does this address consist of? (Multiple choice)
Question200: Which of the following designs has Huawei distributed storage improved the reliability of the system? (Multiple choice)
Question201: In the deployment and implementation of the storage solution, which of the following steps need to be performed? (Multiple choice)
Question202: In the HyperMetro active-active data center solution, data centers A and B are included. When the array of data center A fails, which of the following statements is correct? (Multiple choice)
Question203: The principles for formulating file system backup strategies include: (Multiple choice)
Question204: The S5752/S5352 switches only support optional AC power modules.
Question205: Which of the following service interfaces does the Huawei N8000 cluster NAS system provide?
(Multiple choice)
Question206: What are the common hardware failures of Huawei oceanstor series storage? (Multiple choice)
Question207: ( ) using the First Burst Enabled function of the SCSl protocol, the data transmission between storage devices is optimized at the protocol level, and the number of link transmission interactions for writing data is reduced by half.
Question208: Huawei Oceanstor 9000 adopts the decentralized technology, and the Wushan distributed file system has no performance bottleneck. As the number of nodes increases, the storage capacity and computing power increase linearly, and finally provide users with linearly increasing bandwidth and concurrency.
number [single choice]
Question209: The SDR tool is deployed in an intrusive mode, and Agent programs need to be deployed on the source and target ends
Question210: A company purchased a set of Huawei scale-out file storage for a video surveillance system, enabled the read and write fault tolerance mode of the InfoRevive feature to provide data fault tolerance, and configured the data protection level of EC as 4+1.
If two copies of data fail, how does the InfoRevive feature ensure business continuity and availability?
(Multiple choice)
Question211: The hardware snapshot of the OceanStor backup solution supports storage devices from all manufacturers.
Question212: Which of the following options does not belong to the challenges faced by big data analysis:
Question213: Which of the following options is wrong about the AK/SK authentication process?
Question214: For security reasons, domains generally cannot access resources across domains. However, OceanStor 9000 supports the Cross-domain Policy File mechanism, enabling other domains to have access rights to OceanStor 9000 to achieve cross-domain resource access.
Question215: Huawei's end-to-end active-active data center solution is divided into 6 layers. The six layers are?
Question216: FusionStorage is divided into business system and management system. The ______ layer of the business system is used for the conversion of logical space and physical space.
Question217: The core of Huawei's all-flash storage () technology is a series of algorithm optimization technologies for flash media, which realizes the linkage between the onboard CPU of the controller and the dedicated CPU onboard the SSD, and ensures the consistency of the SSD algorithm between different CPUs. Collaborate to achieve high performance and high reliability of the system.
Question218: Which of the following options is correct in describing the typical deployment scheme of Pusi onStorago? (Multiple choice)
Question219: The evolution route of big data technology is from distributed storage to cloud storage, from intelligent analysis to distributed analysis.
Question220: The disadvantages of using cloud storage as a backup medium are:
Question221: A colleague customizes a dual-active disaster recovery solution for a customer. The customer already has a set of OceanStor S2600T V2, and plans to purchase a new set of OceanStor 2600 V3, and place these two sets of equipment in two data centers to implement a dual-active disaster recovery solution. The solution is?
Question222: The Huawei Oceanstor v3 storage system supports two file system compression strategies, deep and fast. When using the deep compression strategy, it saves more space
Question223: Which options are correct in the following description about iSCSI? (Multiple choice)
Question224: The distributed storage system of a certain manufacturer has been put into operation for 100 days and runs 24 hours a day. A failure occurred in the morning of the 10th day, and it took 1 hour to recover from the failure. A failure occurred in the morning of the 25th day, and it took 4 hours to recover from the failure. A failure occurred in the morning of the 80th day, and it took 1 hour to recover from the failure.
The availability of the software system is?
Question225: Which of the following characteristics is mainly used in Huawei's two-site three-center disaster recovery solution?
Question226: Which of the following descriptions about eReplication is incorrect?
Question227: In Huawei Oceanstor v3 smartqos, which of the following statement about the priority control of front-end concurrent resources is correct? (Multiple choice)
Question228: After the file system snapshot is successfully created, if the file system user wants to access the snapshot, the snapshot directory needs to be remounted.
Question229: When using Huawei OceanStor BCManager eReplication to configure active/standby disaster recovery, which of the following operations is not necessary?
Question230: Regarding source-side deduplication and destination-side deduplication, which statement is correct? (Multiple choice)
Question231: In Oceanstor v3 storage, which of the following authentication methods does NFS not support?
Question232: Regarding the application of InfoStamper features, which of the following options are correct?
(Multiple choice)
Question233: Large Internet company A plans to purchase Huawei's all-flash storage series to protect its key business. Which of the following products can be selected? (Multiple choice)
Question234: Which of the following are the advantages or capabilities of Huawei FusionInsight? (Multiple choice)
Question235: When Huawei Oceanstor 9000 is used in a large file scenario, we should focus on its OPS.
Question236: Which of the following options is wrong about managing fast storage resources?
Question237: The smartqos feature of Huawei Oceanstor v3 can allocate key resources of the storage system to meet the specific performance requirements of certain applications, thereby ensuring the service quality of different services. What functions are mainly provided? (Multiple choice)
Question238: In order to improve system business performance, fusionstorage forms a shared distribution of SSDs on each storage node: cache resource pool, a part of which is used as the cache area of the main memory mechanism, ensuring that data passes through this part before entering the HDD mechanical disk The cache caches the data and reduces the delay, usually called ________cache
Question239: Huawei's SmartVirtualization feature supports offline takeover and online takeover. Which of the following statements about these two methods is correct? (Multiple choice)
Question240: Huawei Oceanstor 9000 needs to apply for some temporary IP addresses for the back-end business network during the software installation process. Regarding the description of these temporary IP addresses, which are correct? (Multiple choice)
Question241: An enterprise needs to continuously protect the data of its important business, and needs to perform different operations on LUN data without affecting the business, such as generating reports, data testing, and data analysis. Which of the following characteristics can meet the requirements of this enterprise?
Question242: The data format before and after backup is consistent, and the backup data can be directly used to restore production data to ensure the continuity of business read and write.
Question243: Which of the following options is wrong about the concept description of object storage service (compatible with OpenStack Swift interface)?
Question244: When using the InfoLocker feature for file protection, which states can the file change between?
(Multiple choice)
Question245: In Oceanstor v3 asynchronous remote replication, what is the minimum time interval that time slice technology can achieve?
Question246: A company uses Huawei's distributed storage object service to save transaction orders and has enabled the WORM function. The administrator finds that some objects can only be read and cannot be modified. Then what WORM state may these objects be in? (Multiple choice)
Question247: Which of the following features cannot improve the performance of Oceanstor v3 storage products?
Question248: A colleague is developing a dual-active disaster recovery plan. After testing that the bandwidth from the arbitration server to the storage system at both ends is 4Mbit/s, the delay RTT is ≤ 40ms, and the packet loss rate is ≤ 1%, then this plan is?
Question249: When dealing with urgent problems, in order to facilitate the location of the problem, you can use some small tools developed by the maintenance personnel at work that do not involve obtaining customer data.
Question250: Which of the following application scenarios does not belong to the typical application scenarios of Oceanstor storage?
Question251: In Oceanstor 9000, if the data protection level is set to 4+2, the corresponding metadata will generate 3 identical mirror images.
Question252: Which of the following is not included in the characteristics of the InfiniBand protocol?
Question253: Which of the weather forecast cloud images is correct? (Multiple choice)
Question254: External storage is classified according to the connection method, which types of storage are mainly included? (Multiple choice)
Question255: Which of the following statements about the SmartVirtualization feature of Huawei OceanStor hybrid flash memory is correct? (Multiple choice)
Question256: The backup management system includes backup management software and backup management server. Which of the following items can be managed? (Multiple choice)
Question257: In Huawei's data migration service process, the () link needs to analyze user business risks, capacity, and operation and maintenance security.
Question258: Which of the following items are correct in IDC's description of the characteristics of big data?
(Multiple choice)
Question259: In the storage system of an Internet company, two services, A and B, are constantly competing for cache and network resources. Leading to longer waiting times for other businesses. Among them, the service is a transaction processing application program, and the B service is an analysis and query application program, which needs to ensure the immediate response of the A service. In order to solve this problem, the QOS priority level of the service A is higher than that of the service assigned by the engineer.
Question260: Huawei Oceanstor 9000 integrates the hard disk resources of all nodes through DFS, and provides a unified namespace to the outside world.
Question261: In Huawei Oceanstor 9000, the client processing the write request will divide the data into pieces according to the protection level specified by the file, write the data piece into the power-saving memory on the corresponding node, and calculate the checksum by each node The data slice is written into the power-saving memory of each node. After all nodes are successfully written into the power-saving memory, the write operation is successful.
Question262: In the design of the backup solution, which of the following should be considered? (Multiple choice)
Question263: A company deploys a set of Huawei distributed storage in Data Center A and Data Center B respectively. It mainly uses the block service to carry application-related services such as databases and virtual machines, and uses the active-active feature of the block service to cooperate with upper-layer applications to ensure business continuity. sex. For this active-active scenario, which of the following option descriptions are correct? (Multiple choice)
Question264: Which of the following statements about the new era of ICT and technology is correct? (Multiple choice)
Question265: A company purchased a set of Huawei scale-out file storage. After the system deployment is completed, the administrator sets the classification according to business needs. To better utilize the advantages of InforTier features, which options are recommended configurations? (Multiple choice)
Question266: Which of the following is the difference between the wiselink and smartconnect technologies of Oceanstor 9000?
Question267: When planning the front-end service network IP address for the C72 node of Huawei Oceanstor
9000, it is necessary to plan 4 static front-end IP addresses for each node.
Question268: Which of the following technologies are not included in the SmartQos feature of Huawei OceanStor V3?
Question269: C72 is a large-capacity archiving node device with a height of 4U, but it can also be fully equipped with 72 SAS disks to adapt to some scenarios with relatively high performance and capacity requirements.
Question270: Which statement is correct about Huawei Oceanstor 9000 NFS service characteristics? (Multiple choice)
Question271: In the Huawei storage system, the () advanced feature can create a full data copy of the source LUN (target LUN) at a specific point in time (when synchronization is started), and the target LUN is immediately readable and writable without waiting for the background Copy complete.
Question272: For a multi-user multimedia on-demand service application, users use different code streams. When planning the LUN of the N8500 cluster IAS storage system in the background, which of the following prefetching strategy should be selected?
Question273: When maintaining the N8500 cluster NAS, the master account cannot log in to the N8500 cluster NAS system. The possible reasons are?
Question274: The disadvantage of the physical tape library is that the hardware mechanical failure rate is high, and the tape medium itself is relatively fragile, which is easily affected by the external environment (temperature, humidity, dust, etc.), and is prone to failure.
Question275: Which of the following descriptions about the backup domain of the OceanStor backup solution is wrong?
Question276: What are the 4s extended scale technologies supported by Huawei Oceanstor 6800 v3? (Multiple choice)
Question277: The storage device has two controllers, A and B. If the BBU of controller A fails, which of the following descriptions is correct?
Question278: Which of the following technologies can be used to manage secure access to N8500 NFS shares?
(Multiple choice)
Question279: There are 1040GB files that need to be backed up, the backup window is 6 hours, GE network, media side deduplication, which of the following statement is correct? (Multiple choice)
Question280: LLD (Lom Level Design, detailed design) is to clearly design the network scope and function deployment plan on the basis of the determined target network architecture: the specific design content includes specifying the interaction process of important services concerned by customers within the scope of the contract, all business In the function allocation of each network element, the design of the peripheral docking relationship of the network element, the docking requirements and compliance with the norms, and the quantitative calculation of the docking resources.
Question281: An enterprise has various applications such as desktop cloud, database, video-on-demand application, and backup, which occupy a large amount of storage resources, and plans to enable the deduplication and compression feature.
Which of the following options is recommended for configuration? (Multiple choice)
Question282: A storage cluster has five C72 nodes. Adopt the front-end and back-end 10CF networking mode.
When deploying distributed system services and object storage services in a mixed manner, the number of IP addresses that need to be planned for the front-end business network is:
Question283: After the controller fails, the ____________ technology is used to realize XXXX switching to ensure the integrity of the data
Question284: Which of the following statements about the working principle of CIFS is correct?
Question285: Which of the following options is incorrect in describing the product features of Huawei Oceanstor
9000?
Question286: Huawei UltaPath provides a variety of load balancing algorithms, which will calculate the overall load data volume based on the block size of each io request, and then perform load balancing algorithm which of the following algorithms?
Question287: Which of the following statements is correct about the order of troubleshooting and diagnosis of Huawei 0ceanStor series storage?
1. location fault
2. Judging the fault
3. Collect fault information
4. Troubleshooting [single choice]
Question288: What advantages does Huawei OceanStor 9000 cluster NAS technology have over traditional NAS storage systems? (Multiple choice)
Question289: As shown in the figure "Oceanstor 9000 Networking Diagram", the nodes in the "Oceanstor 9000 Networking Diagram" use P36 nodes, so which switch in the networking diagram should NIC0 in the P36 node be connected to?
Question290: Which of the following are Huawei storage solutions? (Multiple choice)
Question291: An enterprise mail application service has limited storage resources, so quotas are set for the business users. User A's soft quota is 500 MB, and the hard quota is 800 MB.
Under this configuration, which of the following statements are correct? (Multiple choice)
Question292: For a replication consistency group in a normal state, which operation needs to be performed on the replication consistency group before master-slave switching?
Question293: HyperCDP can generate more and denser recovery points for the data on the storage device, and the HyperCDP copy is the full copy backup of the source data at a certain point in time.
Question294: When a user analyzed his production equipment Oceanstor 9000 with Systemreporter, he found that the CPU utilization rate of some nodes in a certain partition exceeded 80%, but the average CPU utilization rate was about 50%. In addition, he found that the read and write bandwidth of a certain node remained within the performance specification More than 80% of all nodes, and less than 60% of other nodes. In this scenario, which of the following load balancing strategies is recommended?
Question295: In which aspect is the difference between using synchronous remote replication and asynchronous remote replication in Huawei's disaster recovery solution?
Question296: A TV station uses a Huawei hybrid flash memory storage device in an FC network to store videos.
When using it recently, occasionally the video screen freezes.
Engineer A checks the fault after arriving at the site, which of the following is the correct troubleshooting method? (Multiple choice)
Question297: Among the statements about the snapshot LUN of Huawei's hybrid flash storage device, which of the following statements are correct? (Multiple choice)
Question298: In the Huawei storage system, which of the following statements about rolling back HyperCDP is correct? (Multiple choice)
Question299: Which of the following statements about fc and fcoe is correct? (Multiple choice)
Question300: In the Huawei backup solution, the Server-Free backup networking involves snapshot technology, which component initiates the snapshot creation command?
Question301: Which of the following descriptions about the software features of the QceanStor 9000 system is correct? (Multiple choice)
Question302: When maintaining the Huawei Oceanstor 9000 system, it is recommended that the system administrator check the account routinely. The content of the check includes: (Multiple choice)
Question303: Huawei HypeMetro dual-active disaster recovery supports heterogeneous storage, so one OceanStor V3 storage and a Huawei-certified third-party storage can be used to form active-active through HypeMetro.
Question304: An enterprise uses Huawei's all-flash storage system to support its main business. In order to reduce the storage pressure caused by repeated data, if the data type is not suitable for online deduplication, calculate the () of the data and insert the result into the opportunity table.
Question305: When the storage administrator configures the InfoAllocator feature, he configures an A quota for the user group group1 (quota type: capacity quota, quota method: mandatory quota, hard value: 10GB), and quota-user1 configures a B quota (quota type : Capacity quota, quota method: mandatory quota, hard threshold: 20 GB), quota_user2 user has configured a C quota (quota type: capacity quota, quota method: mandatory quota, hard threshold: 5 GB), quota_user1 user and quota-user2 Belong to the group1 user group, which of the following option descriptions are correct? (Multiple choice)
Question306: Calculate the data on the faulty disk based on the data on the normal disk and the verification disk.
Which one is the correct sequence of the whole disk reconstruction process? (Multiple choice)
Question307: The cli management mode of Oceanstor v3 can be accessed through ipv4 or ipv6.
Question308: ACL can be used to grant permissions, can also be used to prohibit permissions.
Question309: The customer value of Huawei Oceanstor 9000 (C30) InfoEqualizer feature is reflected in: (Multiple choice)
Question310: Among the following statements about the characteristics of the file system HyperSnap, which options are correct? (Multiple choice)
Question311: In the Huawei HyperMetro active-active solution, when the active-active data center link fails, the priority site can submit to arbitration first, so that the priority site wins the arbitration first and can continue to provide host services.
Question312: Huawei Oceanstor v3 smartmigration features and smartvirtualization are mutually exclusive and cannot be used together
Question313: The backup software architecture in the OceanStor backup solution includes: (Multiple choice)
Question314: The controllers of Huawei's all-flash storage are connected through an RDMA network. Control messages and data are sent to the receiving end together by means of pre-preparing () resources at the receiving end, which reduces an interaction process and realizes low-cost communication. time delay
Question315: An enterprise uses Huawei's all-flash storage system to support its main business. In order to reduce the storage pressure caused by duplicate data, the system can perform online deduplication processing on data. The granularity of deduplicated data blocks is ().
Question316: InfoTier features store files in different levels according to the difference of file attributes, which options are not the basic unit of the level? (Multiple choice)
Question317: In the SmartQuota feature of Huawei Oceanstor hybrid flash storage, you can choose capacity quota limit or file number quota limit. For the same directory, user or user group, the two quota limit methods cannot be selected at the same time.
Question318: Which of the following options belong to the rules to be followed for FusionStorage software deployment? (Multiple choice)
Question319: What type of LUN is the Huawei SmartErase feature applicable to?
Question320: In Huawei's active-active disaster recovery solution, which of the following situations must use Fiber Channel connection?
Question321: Which of the following descriptions about InfiniBand technology is wrong?
Question322: Huawei OceanStor V3 snapshots can restore the data of the source lun through the snapshot after the source lun is damaged or fails.
Question323: DME supports active operation and maintenance based on AI & strategy engine. Through the DME platform, which of the following options can be completed? (Multiple choice)
Question324: In the HyperMetro active-active data center solution, the quorum server mode has higher reliability than the static priority mode, which can ensure the continuous operation of the business under various single point failure scenarios. Therefore, the quorum server mode is recommended for Huawei's active- active solution.
Question325: A Huawei Oceanstor 9000 cluster office is configured with 6 C72 nodes. How many nodes should NIC0 be connected to the management network?
Question326: Which of the following statements about the characteristics of Huawei HyperVault is correct?
(Multiple choice)
Question327: Which of the following statements about the characteristics of Huawei SmartQuota is correct?
(Multiple choice)
Question328: A colleague customizes Huawei's active-active disaster recovery solution for a customer. The customer already has a set of OceanStor S5500T V2 and a third-party storage system. These two sets of equipment are placed in two data centers to implement active-active disaster recovery. The solution is?
Question329: According to the Huawei backup solution design process, sort the following 4 (drag and drop questions)
1) Network design
2) Compatibility Confirmation
3) Strategy formulation
4) Capacity calculation
Question330: Which of the following technologies are specifically used in Huawei's HyperVault disaster recovery solution? (Multiple choice)
Question331: In the Huawei OceanStor backup solution, which of the following modules needs to be considered when configuring the backup software to create a storage policy? (Multiple choice)
Question332: During the data migration process using Huawei Oceanstor v3 SmartMigration, the data request issued by the host I/O is synchronized to the source LUN and the target LUN in real time through double writing to ensure that the data after the migration is completely consistent. Which of the following is about double writing is correct? (Multiple choice)
Question333: Which of the following is the correct sequence of steps for disaster recovery scheme design?
A Storage capacity and disaster recovery bandwidth calculation.
B compatibility confirmation.
C Disaster recovery plan selection.
D Network design.
E disaster recovery function design.
Question334: When the SmartDedupe&SmartCompression feature performs data deduplication and data compression, it will definitely consume the system resources of the storage system, thus reducing the performance of the storage system.
Question335: Which of the following functions can the Oceanstor 9000 administrator achieve through the InfoAllocator feature? (Multiple choice)
Question336: Which of the following options is wrong about quotas and statistical descriptions?
Question337: Regarding Huawei's hybrid flash memory storage, which of the following statements are correct?
(Multiple choice)
Question338: Which of the following is not a high-performance technology of hypermetro?
Question339: A company's business runs on Huawei's distributed storage, and the user data business uses the block service, and the deduplication function is enabled. During the peak period of user data business, it is necessary to give priority to ensuring the front-end business performance, which heavy method will the storage system use?
Question340: In the advanced features of SmartTier, the default size of data migration granularity is ________ MB.
Question341: In the outline design stage, HLD (High Level Design) needs to be output.
Question342: The engines of Oceanstor 18000 storage series products are interconnected by 10GE cables to realize communication transmission of management and business data
Question343: Regarding the description of the data protection function of the Huawei Oceanstor 9000 system, which of the following options is incorrect?
Question344: In Huawei's hybrid flash storage SmartQos, I/O priority scheduling is mainly to schedule key system resources. The main scheduled resources include: (Multiple choice)
Question345: Which of the following statements about the remote replication application of the Huawei Oceanstor v3 file system is wrong? (Multiple choice)
Question346: There are five P36 nodes in a certain storage cluster, and the front-end and back-end 10GE networking methods are adopted. The front-end service network provides two 10GE interfaces. When deploying distributed file system services and object storage services in a mixed manner, the number of IP addresses that need to be planned for the front-end business network is:
Question347: When configuring the active-active working mode, if load balancing within the array is used, the command set hypermetro working mode=___________array_id=IDo can be used
Question348: In the HyperMetro active-active data center solution, before configuring the active-active pair, the active-active domain needs to be configured. The active-active domain is a logical concept, which can include two sets of storage arrays and arbitration servers that need to create an active-active relationship.
Question349: The features of Huawei Oceanstor 9000 FTP service include: (Multiple choice)
Question350: The remote replication feature is mainly used in disaster recovery and backup scenarios. Which of the following statements about the remote replication feature is correct? (Multiple choice)
Question351: Network connection is required before the initial configuration of the big data system, and the networking of Huawei Oceanstor9000 is not included.
Question352: In the OceanStor backup solution architecture, it includes three parts: the central site, the branch site, and the remote backup site. Only the backup system can be deployed at the backup site, and the production system cannot be deployed.
Question353: Regarding the switches used in the Huawei Oceanstor 9000 system, which of the following options are correct?
Question354: In the Huawei disaster recovery solution, the correct description of the sequence of synchronous remote replication is:
1 The primary storage array writes I/O data to the primary LUN and sends IO to the secondary LUN
2. The host sends IO to the main storage array.
3. The primary storage array returns information of successful writing to the host.
4 Write IO data to the master and slave LUNs.
Question355: Before performing re-striping, Oceanstor 9000 will judge whether the occupied space of the node pool in the target classification is higher than the read-only water level. If it is lower than the read-only water level, it can perform re-striping, otherwise it will not perform striping.
Question356: Huawei Oceanstor v3 smarterase has several limitations when using it. Which of the following statements is correct?
Question357: Which of the following descriptions about the C72 node management interface is correct? (Multiple choice)
Question358: After creating a timed HyperCDP plan for a period of time, an enterprise frequently prompts that the storage pool resources are insufficient. At this time, which of the following configurations can be selected to modify the timed HyperCD plan?
Question359: Regarding deduplication on the target side, which of the following descriptions is incorrect?
Question360: A Huawei Oceanstor 9000 cluster site is configured with 4 P36 nodes and adopts back-end IB networking. Without considering the temporary IP, how many back-end storage network IP addresses should be planned?
Question361: The () system refers to the establishment of multiple sets of T systems with the same functions in remote places far apart, which can perform health status monitoring and function switching between each other.
Question362: When using remote replication technology to implement 3dc application scenarios, which of the following plans will be made? (Multiple choice)
Question363: Which of the following is the correct power-on sequence for the Huawei OceanStor 9000 big data storage system?
Question364: In Huawei's hybrid flash storage device, the _______ technology can identify hot data and regularly migrate hot data to higher storage media, thereby improving storage performance.
Question365: The disaster recovery system can copy business data to a local or remote data center for protection. Not all data damage/loss can be recovered. Which of the following data damages cannot be recovered by the disaster recovery system? (Multiple choice)
Question366: Which of the following options is correct for the calculation formula of file system backup bandwidth?
Question367: In OceanStor 9000, if a certain hard disk is offline for 15 minutes, the recovery method of the data on the hard disk is. The system calculates the data on the hard disk and restores the data to other normal hard disks.
Question368: What are the advantages of data parallel deduplication? (Multiple choice)
Question369: A company uses Huawei's distributed storage block service to run data services. The development team needs to use business data for data mining and testing without affecting business data. Which of the following descriptions is correct? (Multiple choice)
Question370: The health status of the Huawei Oceanstor 9000 system cluster includes: (Multiple choice)
Question371: __________ Deduplication means that data is divided into blocks of variable size according to its own content for deduplication, which is mainly used in the backup field.
Question372: VADP backup mode does not include:
Question373: In the OceanStorV3 storage system, when the data state of the slave LUN is in which state, remote replication supports the user to perform master-slave switching operations? (Multiple choice)
Question374: Backup networking LAN-Base is one of the most common networking methods, and its advantages include: (Multiple choice)
Question375: Creating a consistency group is a necessary step in Huawei's active-standby disaster recovery solution.
Question376: Operation and maintenance is based on technology, and provides higher quality services through technical guarantee products. Which of the following aspects can be used to improve the quality of operation and maintenance? (Multiple choice)
Question377: The SmartQoS technology of Huawei OceanStor all-flash storage supports the creation of tenant- level QoS control and file system QoS control. The two controls can take effect at the same time, forming a two-level QoS control.
Question378: Traditional storage controllers are centralized and cause performance bottlenecks. In Huawei's hyper-converged FusioncCube, the distributed architecture and distributed storage eliminate storage performance bottlenecks.
Question379: In a backup system, ___________ automatically initiates the backup job and executes the backup
Question380: Bank A purchased a batch of Huawei OceansStor 18500 v5, and used RDMA Scale-out to expand the connection. Which of the following statements is correct? (Multiple choice)
Question381: Which of the following is a high-risk command of the Huawei storage danger type?
Question382: Regarding the performance of hard disks under various types of Huawei Oceanstor 9000 nodes, which one is the correct order from high to low?
Question383: Which one is not included in the characteristics of the pcie protocol?
Question384: Huawei storage products provide data center active-active solutions based on HyperMetro. By classifying services, some services are mainly based on data center A, data center B is hot standby, and some services are mainly based on data center B. Center B is a hot standby to achieve the effect of active-active.
Question385: A company wants to deploy a big data platform. It is preliminarily estimated that the number of files in the entire cluster can reach trillions, and the number of files in a single NameNode exceeds 100 million. The primary and backup mode of native HDFS MameNode can meet the demand.
Question386: Which of the following products belong to the OceanStor 18000 storage series? (Multiple choice)
Question387: During the processing of the IO module of Huawei's distributed object service, after the authentication is passed, the OSC calls the Plog Server to process the data.
EC calculations are concurrently written to the Plog Client for persistence.
Question388: A company's applications and data have high security requirements. During the inspection, it was found that two NL-SAS hard disks were disconnected and data was lost. In order to avoid this situation from happening again, it is necessary to complete the RAID configuration and require the use of hard disks. The rate must be greater than 60%, which of the following are eligible? (Multiple choice)
Question389: Huawei distributed storage, _____________ feature supports remote data migration
Question390: In Huawei Oceanstor v3, which of the following statements about cloning is correct? (Multiple choice)
Question391: Regarding the global deduplication of Simpana, which of the following statements is correct?
Question392: The key technologies of OceanStor 9000 to improve the performance of object storage applications include: (Multiple choice)
Question393: In raid2.0+, the cks in the chunk group (ckg) can come from different disk groups (dg)
Question394: Need to collect customer's application data after failure occurs
Question395: In the Huawei Oceanstor 9000 system, if the access storage system nodes of the client are unevenly distributed, after readjusting the partition, it is necessary to uninstall the shared directory on each client and remount it with the assigned domain name.
Question396: When planning and designing a storage project, what are the following basic stages? (Multiple choice)
Question397: After using the Smartvirtualization feature to host the external LUN in the heterogeneous storage system, the read I/O request for the external LUN data does not pass through the heterogeneous storage system, where the data may exist?
Question398: The data write-back process of Huawei Oceanstor V3 SmartVirtualization is that when the server sends a data write-back request, after the data is written into the cache of the local storage system, the local storage system will return the write I/O result to the server, and then talk about data writing into heterogeneous storage systems.
Question399: When accessing the Linux client of the Huawei Oceanstor9000 cluster, you can adjust the client parameters to improve access performance. Which of the following is wrong?
Question400: In the Huawei OceanStor backup solution, if the retention time and retention cycle of the configured backup data are 13 days and 2 respectively, and the actual backup cycle is 3 days, how many days are the data retained?
Question401: Which of the following descriptions about the physical division of Oceanstor 9000 is wrong?
Question402: Which of the following descriptions for the CIFS protocol is correct? (Multiple choice)
Question403: Which of the following descriptions about the unified namespace is incorrect?
Question404: When the amount of backup data is large, it is recommended to use an integrated deployment solution instead of a separate one.
Question405: A customer plans to store a large number of files in a certain directory of Huawei Oceanstor 9000.
Most of these files are between 64-128K in size. In order to improve hard disk utilization and read and write performance, the customer should store the files in the file directory How big is the Strip setting?
Question406: During the daily inspection, Engineer C found that the bit error rate of an optical module is relatively high, and plans to replace an optical module. Which of the following options is correct? (Multiple choice)
Question407: Which of the following servers must be authenticated by the user to access the object storage service (compatible with the OpenStack Swift interface)?
Question408: Which of the following statements about unpacking and inspection is wrong?
Question409: The following describes the characteristics of which backup network
1 Occupies a large existing network bandwidth.
2 Backup performance is limited.
3 has a certain impact on the host application.
Question410: In RAID2.0+ technology, what is the default size of the CHUNK split from the SAS hard disk?
Question411: Regarding the data write-through of Huawei Oceanstor v3 smartvirtualization, which of the following statements is correct?
Question412: Regarding SmartMigration LUN information exchange, which of the following descriptions is correct? (Multiple choice)
Question413: In scenarios where customers have high requirements for file read and write performance, such as high-performance computing applications, the backend of Oceanstor 9000 has already adopted 10GE networking. What network type should customers recommend for the front-end business network?
(Multiple choice)
Question414: Which of the following is not a function of Oceanstor cloud service?
Question415: When designing a backup plan, if the application program is not in the compatibility list, it cannot be backed up.
Question416: After taking a snapshot of the source lun and modifying it at the same location, where will the modified data be written?
Question417: The customer needs to apply business RTO=0 and RPO=0, which disaster recovery solution should be used?
Question418: Huawei's hyper-converged storage adopts a distributed storage logic architecture. Which of the following is the function of the VBS module? ()
Question419: In the () link of Huawei data migration service process, laboratory simulation is required to output the operation manual.
Question420: When planning the back-end storage network IP address of the OceanStor 9000 IB networking deployment solution, it is necessary to plan 2 back-end storage IP addresses and 1 temporary IP address for each node.
Question421: C72 is "a high-capacity archiving node device with a height of 4U, but it can also be fully equipped with 272 SAS disks to adapt to some scenarios with relatively high performance and capacity requirements.
Question422: iSCSI architecture The ISCSI node encapsulates SCSI commands and data into iSCSI packets, and then the data encapsulation is sent to the TCP/IP layer, and the TCP/IP protocol encapsulates the iSCSI packets into IP protocol data for transmission in the network.
Which of the following descriptions about the iSCSI protocol are correct? (Multiple choice)
Question423: Small and medium-sized e-commerce company B plans to purchase Huawei's hybrid flash storage to build its information system. Which of the following products are available? (Multiple choice)
Question424: SmartDedupe in Huawei's hybrid flash storage can only be supported by file systems with Thin features.
Question425: During the operation of replacing the hard disk, which of the following is an incorrect operation?
Question426: Taking Huawei Ocean stor all-flash memory as an example, which of the following understandings about a certain structure of all-flash storage software are correct? (Multiple choice)
Question427: Which of the following options are disadvantages of HDFS components? (Multiple choice)
Question428: When using Huawei's distributed storage block service, which options are correct for the description of the asynchronous remote replication feature disaster recovery cluster? (Multiple choice)
Question429: In the storage pool of the local storage system, the external LUN mapped through SmartVirtualization will be created as a raw storage logical volume according to the virtualized data organization form. The raw storage logical volume created in this way is called ()
Question430: Which of the following designs does Huawei Oceanstor 9000 improve the reliability of the system?
(Multiple choice)
Question431: In the Oceanstor 9000 storage system, configure Info Allocator hard quotas for directory A and its subdirectory B to be 1GB and 2GB respectively. Which of the following statements is correct? (Multiple choice)
Question432: Which of the following scenarios are more suitable for using FusionInsight hadoop technology of Huawei Oceanstor 9000? (Multiple choice)
Question433: Which level does the IB protocol stack not include?
Question434: Huawei hyper-convergence has the function of adaptive global deduplication and compression, which can provide significant space reduction and reduce user TCO under reasonable resource consumption.
Regarding the implementation process of adaptive global deduplication compression, the correct sequence is?
1.Write data block
2.Point to the data in the fingerprint table after deduplication
3.Upgrade from opportunity table to fingerprint table
4.Data block fingerprint entry opportunity table
Question435: When which of the following situations occurs, the Huawei OceanStor 9000 system will not start load balancing?
Question436: In Oceanstor v3 synchronous remote replication, the master lun and the slave lun can be in the same array
Question437: Game live broadcast platform A uses Huawei's all-flash storage FlashLink many-core technology to protect its business. For the many-core technology, which of the following describes the scenario where the CPU is grouped by core?
Question438: Which of the following scenarios can InfiniBand be applied to? (Multiple choice)
Question439: The maintenance and management tools required by the Oceanstor 18000 high-end storage system are installed on the svp, so that users can easily complete a complete set of management, configuration, authentication and other tasks locally or remotely
Question440: Game live broadcast platform A uses the FlashLink many-core technology of Huawei's all-flash storage to guarantee its business. Which of the following describes the characteristics of the many-core technology that binds IO per core in the CPU?
Question441: On the LINUX client accessing the Oceanstor 9000 cluster, you can adjust the NFS mount parameters of the client to improve access performance. Regarding the adjustment of NFS mount parameters, which of the following descriptions is correct? (Multiple choice)
Question442: In the Oceanstor 9000 system, if a node is offline for 2 days due to a power module failure and then returns to normal again, if the administrator does not manually restore the data to the node, the system will automatically restore the data that has changed during the offline time. Update to the recovered node.
Question443: Regarding the networking of the Huawei Oceanstor 9000 system, which of the following options is correct?
Question444: Among SATA SSD, SAS SSD, and NVMe SSD, NVMe SS supports the highest IOPS