EMT Practice Test

1. Question Content...

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Question1: Which of the following statements about the concepts related to the HyperReplication feature are correct? (Multiple choice)

Question2: Which of the following option does not belong to the network architecture of Huawei distributed storage?

Question3: Huawei's end-to-end active-active data center solution is divided into six layers. What are these six layers?

Question4: Company A plans to adopt hyper-convergence to realize the rapidly changing information needs of the enterprise. Which of the following items are the architectural features of hyper-convergence?

Question5: 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 for selection? (Multiple choice)

Question6: Before planning and designing the project, it is necessary to collect information on the project. Which of the following information collection descriptions are correct? (Multiple choice)

Question7: Operation and maintenance engineer A consults the Huawei All-Flash Storage Manual about the process of hardware trusted and secure boot, which of the following sequence is correct?
① Verify Grub's signature public key
② Verify the status of the software signing certificate
③ Verify and load Grub
④ Verify and load the OS

Question8: An enterprise purchased a set of Huawei hybrid flash storage system, and plans to configure NAS services to facilitate file storage and sharing among various departments. Which of the following planning and design are correct? (Multiple choice)

Question9: After Engineer C completes the installation of Huawei's distributed storage on site, he powers on for big data service configuration.
In the following description of the big data business configuration process, which of the options is in the correct order?
1. Create an account
2. Configure the subnet
3. Create a file system
4. Be associated File System
5. Create NameNode Zone
6. Create Global Zone

Question10: Which of the following types of intermediate links can be used in Huawei's disaster recovery dual-active solution? (Multiple choice)

Question11: For the description of Huawei Oceantor9000 products, which of the following options is wrong?

Question12: The object storage services provided by Huawei Distributed Storage (compatible with Amazon S3 and OpenStack Swift) all provide a unified RESTfulAPI, and the client can access the storage node through the RESTfulAPI to realize data storage.

Question13: Through the Huawei OceanStor 9000 DeviceManager, the administrator can quickly complete the initialization; what are the initialization configuration items? (Multiple choice)

Question14: Which of the following statements about synthetic full backup is wrong?

Question15: Huawei's hyper-converged storage adopts a distributed hash algorithm, and the parallel HASH calculation and local memory metadata, which can expand at any level without performance bottlenecks

Question16: Through Huawei OceanStor9000 Device Manager, we can view the real-time OPS performance indicators of the system.

Question17: A company requires less storage space and a short backup window when data backup is required. At this time, which type of backup should we recommend to the company?

Question18: The game live broadcast platform A uses Huawei's all-flash storage to protect its business, and the storage system uses FlashLink technology designed specifically for flash memory. Which of the following statements about writing ROW in full scale and large block order are correct? (Multiple choice)

Question19: n the Huawei Oceanstor 9000 software architecture, the distributed object storage layer is built on the basis of the distributed file storage layer.

Question20: Which of the following descriptions are correct about the data backup strategy? (Multiple choice)

Question21: What are the basic stages when planning and designing storage projects? (Multiple choice)

Question22: When the storage administrator configures the InfoAllocator feature, a quota A is configured for the user group group1 (quota type: capacity quota, quota method: mandatory quota, hard value: 10GB), and quota-userl users are configured with a quota B (quota type Capacity quota, quota method: mandatory quota, hard threshold: 20 GB), quota_user2 user is configured with a C quota (quota type: capacity quota, quota method: mandatory quota, hard threshold: 5 GB), quota_userl user and quota-user2 Belongs to the groupl user group, which of the following descriptions are correct? (Multiple choice)

Question23: Which of the following description of eReplication is incorrect?

Question24: Among the software modules of Huawei Oceanstor 9000, which ones belong to the distributed object storage layer but not to the distributed file system layer? (Multiple choice)

Question25: . Which of the following statements about the preparation of N8500 configuration is wrong?

Question26: In RAID2.0+ technology, what is the default size in MB of the CHUNK segmented from SAS hard disks?

Question27: If the alarm indicator of the storage controller enclosure is yellow, it indicates that the storage system has a critical alarm.

Question28: In the OceanStorV3 storage system, when the data status of the slave LUN is in which state, the remote replication supports the user to perform the master-slave switch operation? (Multiple choice)

Question29: An enterprise needs to provide continuous data protection for its instant transaction business, so it has created a timed HyperCDP plan for the business data LUN. Which of the following configurations can shorten the RPO as much as possible?

Question30: Which of the following level that completes the encoding and decoding work in the FCoE protocol?

Question31: In Huawei Oceanstor 9000, the client processing the write request will fragment the data according to the protection level specified by the file, write the data fragments to the power-saving memory on the corresponding node, and then calculate the school by each node. Verify the data piece and write it into the power-saving memory of each 2 nodes. After all nodes write the power-saving memory successfully, the write operation is successful.

Question32: The importance of business systems A, B, and C of a certain enterprise are high, medium, and low respectively. Which of the following description are feasible for strategic planning? (Multiple choice)

Question33: A colleague customized 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. The two sets of equipment are placed in two data centers to implement dual-active disaster recovery. The solution is?

Question34: Which of the following statements about the Thin LUN and multi-select Thick LUN of Huawei Oceanstor storage are wrong? (Multiple choice)

Question35: Among SATA SSD, SAS SSD, and NVMe SSD, NVMe SSD supports the highest IOPS.

Question36: In a city, if the Municipal Public Security Bureau needs to regularly archive the video surveillance in the jurisdiction of each police station, in such an application scenario, if the solution provided by Oceanstor 9000VIRC30 is adopted, which of the following node types should be recommended for customers?

Question37: In the Huawei Oceanstor 9000 storage system, when a certain InfoReplicator is in a split state, which of the following statements is incorrect?

Question38: When using Huawei OceanStor BCManagereReplication to configure active and standby disaster recovery, which of the following operations is not necessary?

Question39: Huawei's hyper-converged storage uses a distributed storage logic architecture. Which of the following is the function of the MDC module?

Question40: When deploying OceanStor 9000 through the deployment tool, the IP address entered in the "IP address range" in the "DHCP configuration" area is only used temporarily during the deployment process. After the deployment is successful, the IP address of each node is modified to the IP address planned in the configuration file.

Question41: Which of the following is the maintenance software supported by Huawei's hybrid flash storage products?

Question42: A company purchased a set of Huawei distributed storage to provide object storage and file storage services. The administrator allowed users to access the object and file services at the same time by allowing HTTP access in the system.

Question43: The CSl plug-in auxiliary service provided by the Kubernetes community is implemented based on the CSI specification and deployed on all K8s nodes to complete volume creation/delete, mapping/unmapping, mounting/unmounting and other operations.

Question44: The object storage services provided by OceanStor9000 (compatible with Amazon S3 and OpenStack Swift) all provide a unified RESTful API. Clients can access storage nodes through STfulAPI to achieve data storage.

Question45: What is the correct process sequence for installing CommServe?

Question46: During the processing of Huawei's distributed big data service IO stack, the computing component sends a request to the DataNode module through the hdfs client, and returns file metadata information.

Question47: InfoReplicator supports splitting the Pair, that is, temporarily suspending data synchronization between the master and slave directories. If the user wants to restore the data synchronization of the pair and keep the data in the master and slave directories consistent again, just manually create a new pair.

Question48: An enterprise has multiple applications such as desktop cloud, database, video-on-demand application, backup, etc., which occupies a large amount of storage resources, and plans to enable deduplication and compression. Which of the following options are recommended for configuration? (Multiple choice)

Question49: Which of the following descriptions of OceanStor backup solutions are correct? (Multiple choice)

Question50: Which one of the following descriptions about the VCS service in the clustered NAS system is wrong?

Question51: What are the characteristics of cross-domain unified management of data backup? (Multiple choice)

Question52: What are the backup software architectures included in the ceanStor backup solution? (Multiple choice)

Question53: A large e-commerce company A purchased Huawei's hyper-converged storage products to build a private cloud. Which of the following reflect the advantages of the product? (Multiple choice)

Question54: Which of the following technologies are used in Huawei's HyperVault disaster recovery solution? (Multiple choice)

Question55: What are the principles of making a file system backup strategy? (Multiple choice)

Question56: Huawei hybrid flash storage adopts a single-selection architecture of RAID 2.0+ software architecture, which realizes the virtualization of the underlying media and the virtualization of the upper-level resources, and at the same time solves the problem of rapid data reconstruction and intelligent allocation of resources.

Question57: Which of the following does Backup strategy management not include?

Question58: The hardware snapshot of the OceanStor backup solution supports storage devices from all manufacturers.

Question59: Through the InfoAllocator feature, which of the following functions can be achieved by the administrator? (Multiple choice)

Question60: The disadvantage of physical tape libraries is that the hardware and mechanical failure rate is relatively high, and the single-selection tape media itself is relatively fragile, susceptible to external environment (temperature, humidity, dust, etc.), and is prone to failure.

Question61: Oceanstor 9000 (C30) adds an internal file copy function during file sharing. When you perform which of the following operations on the client, you will not see the data traffic when monitoring the Huawei Oceanstor 9000 client? (Multiple choice)

Question62: A company has purchased multiple sets of Huawei distributed storage, deployed in multiple data centers, and used object service remote replication to build a disaster recovery system. These distributed storages are planned in the same area, so this area has and only a default cluster, other clusters are non-default clusters.

Question63: In Oceanstor 9000, which one is wrong about WushanFS global cache technology?

Question64: The feature of Huawei SmartCache is to form an SSD disk into a smart cache pool, which is divided into multiple partitions. Different services cannot share partitions to ensure business independence.

Question65: Which of the following configuration strategies can improve the security of the storage system? (Multiple choice)

Question66: Which of the following descriptions of DME architecture characteristics are correct? (Multiple choice)

Question67: In a large and medium-sized database application, files such as data, logs, and modification records are stored in the associated LUN1, LUN2, and LUN3 respectively, and remote replication tasks 1, 2, and 3 are created respectively, and the engineer copies these three remotely The task is added to the consistency group.
In this case, which of the following statements are correct? (Multiple choice)

Question68: Regarding the remote replication technology of Huawei OceanStor all-flash storage, which of the following are the features that it can support? (Multiple choice)

Question69: The minimum number of nodes required for an OceanStor9000 cluster deployment is?

Question70: Huawei hybrid flash storage adopts the structure of RAID 2.0+ software architecture, which realizes the virtualization of the underlying media and the virtualization of the upper-level resources, and at the same time solves the problem of rapid data reconstruction and intelligent allocation of resources.

Question71: With Huawei's intelligent distributed storage products, clusters can only provide block storage and object file storage interfaces for upper-layer applications.

Question72: What are the customer values of the InfoEqualizer feature of Huawei Oceanstor 9000 (C30)? (Multiple choice)

Question73: Huawei SmartVirtualization feature supports offline takeover and online takeover. Which of the following statements about these two methods are correct? (Multiple choice)

Question74: Huawei Oceanstor 9000 provides a single file system externally with a unified file system namespace. Which of the following descriptions about Oceanstor 9000 unified-namespace is incorrect?

Question75: In the Huawei disaster recovery solution, at which levels can data replication be performed? (Multiple choices)

Question76: The Huawei Oceanstor 9000 FRU replacement tool does not support the replacement of which of the following modules or devices?

Question77: An enterprise plans to purchase a set of storage equipment, and its business has different requirements for storage performance. Which of the following description is wrong when performing hard disk selection, planning and design?

Question78: What professional storage value-added features does the HDFS interface provide for Hadoop business? (Multiple choice)

Question79: Which of the following statements about backup networking LAN-free and Server-free is correct?

Question80: The storage resources of an enterprise mail application service are limited, so a quota is set for the business user. The soft quota for user A is 500 MB and the hard quota is 800 MB. Under this configuration, which of the following statements are correct? (Multiple choice)

Question81: The Simpana software includes the following components. Which of the following descriptions about the sequence of upgrading components is correct?

Question82: Which node types does Huawei OceanStor 9000 support? (Multiple choice)

Question83: In the "Oceanstor 9000 Network Diagram", what type of switch b should be?

Question84: Which one of the following descriptions about the quota characteristics of Huawei Oceansor 9000 is wrong?

Question85: In the special feature of Huawei OceanStr Hybrid Flash Storage SmartQuota, each time an I/O operation, the system will check the used capacity and the number of files of the quota, plus if the incremental capacity and files of this operation exceed the hard quota. If it is exceeded, the operation will fail, otherwise the operation will succeed.

Question86: In the feature of Huawei OceanStor 9000 InfoEqualizer, a partition is a collection of a group of nodes. These nodes are used to separate and provide different services. They have the same dynamic domain name, static domain name and automatic load balancing mode.

Question87: LLD (Lom Level Design) is based on the determined target network architecture, clearly designing the scope of the network and the functional deployment plan, the specific design content includes clarifying the interactive process and all services of the important business that the customer pays attention to within the scope of the contract, 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, the quantitative calculation of docking resources.

Question88: Which of the following descriptions are the reasons for the rapid development of enterprise-level cloud storage? (Multiple choice)

Question89: What are the deduplication classifications? (Multiple choice)

Question90: A Huawei Oceanstor 9000 cluster site is configured with 4 P36 nodes and adopts back-end IB networking. How many back-end storage network IP addresses should be planned regardless of temporary circumstances?

Question91: In an OceanStor 9000 system, the total number of nodes is 10. What data protection levels can be configured for it? (Multiple choice)

Question92: A company 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 the eService service to manage the operation and maintenance of the storage device to improve the efficiency of operation and maintenance.

Question93: The bandwidth of the two data centers tested by the customer is 155Mbit/s, the peak write bandwidth of an application is 9.8MB/s, the average written bandwidth is 300KB/s, the average write I/O size is 4KB, and the bandwidth utilization rate is 70%. Colleagues choose the primary and standby synchronous remote replication disaster recovery solution

Question94: In the deployment and implementation of storage solutions, which of the following steps need to be performed? (Multiple choice)

Question95: The customer has a third-party storage system and wants to build a local high-availability solution for the storage system. He plans to purchase OceanStor 5600 V3 and only purchase the HyperMirror license. This solution is?

Question96: What are the schedule maintenance principles of the big data storage system? (Multiple choice)

Question97: In the data replication technology used for disaster tolerance, the data replication technology at the host layer has good compatibility with servers and storage devices.

Question98: There are 1040GB files that need to be backed up, the backup window is 6 hours, and the GE network and the media side are deduplicated. Which of the following statements is correct? (Multiple choice)

Question99: Which load balancing method does the Huawei Oceanstor 9000 InfoEqualize feature not support?

Question100: Which of the following statements about the features of Huawei SmartPartition are correct? (Multiple choice)

Question101: Bank A uses Huawei all-flash storage to carry its key services. Which of the following can provide data reliability assurance? (Multiple choice)

Question102: In order to improve the reliability of its important business, an enterprise deployed a local active-active solution in a data center room A and room B.
Regarding this solution, which of the following statements is correct?

Question103: What are the correct statements about the Huawei Oceanstor 9000 InfoTier node pool? (Multiple choice)

Question104: Which of the following are Huawei's disaster recovery solutions? (Multiple choice)

Question105: 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%).
Using FC networking, and set to synchronous remote replication mode (considering the cost of private information), which is the correct requirement for network bandwidth?

Question106: What are the advantages of Huawei OceanStor 9000 clustered NAS technology over traditional NAS storage systems? (Multiple choice)

Question107: Which of the following statements about the features of Huawei SmartQuota are correct? (Multiple choice)

Question108: Which of the following options is not a feature of distributed storage big data service solutions?

Question109: The object service provides the online aggregation capability of small objects. The small objects uploaded by the client are written into the SSD cache first, aggregated into an EC strip size, and then EC is calculated, and the data strips and EC are calculated automatically the parity is stored on the HDD.

Question110: The SmartQoS technology of Huawei OceanStor all-flash storage supports the creation of tenant-level QoS control and file system QoS control. Both the two controls can take effect at the same time, forming a two-level QoS control.

Question111: Huawei's hyper-converged storage products have strong consistency replication agreements. When the application writes a piece of data, if it succeeds, one or more copies of the backend must be consistent.

Question112: What level of RPO and RTO can synchronous remote replication meet?

Question113: An enterprise administrator created a shared folder on the root directory of the file system, and created 3 different Quota Trees under the root directory for Manager A (Quota Tree 1), Project Department B (Quota Tree 2) and Sales Department C (Quota Tree 3) is used alone. Which of the following statement is correct?

Question114: Huawei's hyper-converged storage uses the structure of distributed storage logic. Which of the following is the function of the OSD module?

Question115: Huawei's hyper-converged storage has multiple data security assurance mechanisms. Which of the following statements is correct? (Multiple choice)

Question116: Which of the following options are disadvantages of HDFS components? (Multiple choice)

Question117: In the Oceanstor 9000 storage system, if you want to perform a complete network tuning, you need to check and adjust from two aspects: storage nodes and switches.

Question118: In the HyperMetro dual-active data center solution, the arbitration server mode has higher reliability than the static superior mode, which can ensure continuous business operation under various single-point failure scenarios. Therefore, Huawei's dual-active solution recommends the use of the arbitration server mode.

Question119: Which of the following options describes the features of Huawei Oceanstor 900 is wrong?

Question120: Large Internet company A plans to purchase Huawei's all-flash storage series to protect its key business. Which of the following products are available for selection? (Multiple choice)

Question121: Regarding the networking of the Huawei Oceanstor 9000 system, which of the following description is correct?

Question122: Erasure code redundancy technology supports higher reliability and more flexible redundancy strategies than traditional RAID algorithms. Which one of the following descriptions of Erasurecode principle is wrong?

Question123: Which of the following ideas and methods are correct for troubleshooting the QceanStor9000 DeviceManager server? (Multiple choice)

Question124: When selecting the data backup type, which of the following descriptions is wrong?

Question125: Which of the following statements about snapshots is correct?

Question126: As Huawei Oceanstor 9000 adopts centralized technology, Wushan distributed file system has no performance bottleneck. As the number of nodes increases, storage capacity and computing power increase linearly, and finally provide users with linearly increasing bandwidth and concurrency.

Question127: The data synchronization methods in Oceanstor 9000 Inforeplicator include full synchronization and incremental synchronization. Incremental synchronization can be triggered manually or automatically.

Question128: In the use of OceanStor BCManager eReplication for disaster tolerance switchover and failback testing, both the production and disaster recovery end arrays must support the snapshot feature.

Question129: The game live broadcast platform A uses Huawei's all-flash storage to ensure its business, and the storage system uses FlashLink technology designed specifically for flash memory.
Which of the following statements is correct for the many-core technology? (Multiple choice)

Question130: 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 reflects this characteristic? (Multiple choice)

Question131: Engineer C completes the installation of Huawei's distributed storage on site, and then powers on to configure big data services.
In the following description of the big data business configuration process, which of the following is the correct order?
1. Create an account
2. Configure the subnet
3. Create a file system
4. Associated File System
5. Create NameNode Zone
6. Create Global Zone

Question132: For the NDMP feature of Oceanstor9000 product, which of the following option descriptions is wrong?

Question133: An enterprise purchased a 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 the use of aggregation switches.

Question134: 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 reflect this feature? (Multiple choice)

Question135: Which of the following application scenarios does not belong to the typical application scenarios of Huawei hybrid flash storage?

Question136: Which of the following is wrong description of the characteristics of Oceanstor 9000 InfoStamaper?

Question137: Which automatic load balancing method does Huawei Oceanstor 9000 InfoEqualrser support by default?

Question138: Internet company A uses Huawei's hyper-converged storage to build the company's information platform, which significantly improves the efficiency of the platform's storage space usage. Which of the following reflect this feature? (Multiple choice)

Question139: What are the possible causes of common business faults in the Huawei OceanStor 9000 storage system? (Multiple choice)

Question140: The mini SAS interface is used for interconnection between the control box and the hard disk box of Huawei hybrid flash storage system, and the maximum transmission rate can reach 8GB/s.

Question141: In the Huawei OceanStor backup solution, which of the following modules should be considered when configuring the backup software to create a storage strategy? (Multiple choice)

Question142: In the HyperMetro active-active data center solution, if there is a bad block in a LUN of an array member, which of the following statement is incorrect?

Question143: About the Huawei's SamtMulti-Tenant technology, which of the following statement is incorrect?

Question144: The Wushan file system in Oceanstor 9000 uses object storage type, but it only uses object storage for data, and does not use object storage for metadata.

Question145: The object service provides multi-tenant management capabilities, and the data between different tenants can be physically isolated to facilitate resource division.

Question146: 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)

Question147: Regarding the characteristics of a single file system in Huawei's distributed storage, which of the following descriptions are correct? (Multiple choice)

Question148: After purchasing Huawei's all-flash storage devices, which of the following options must be planned when planning the basic storage business? (Multiple choice)

Question149: The intelligent load balancing technology in Huawei's distributed storage supports partitions, and each partition can set an independent domain name and load balancing strategy.

Question150: The HyperLock (WORM) feature of Huawei Storage allows the file to write data only once, cannot be written repeatedly, and is not allowed to be modified, deleted, or renamed.

Question151: When configuring the Simpana backup software, the configurable deduplication strategy does not include?

Question152: IOPS is a key indicator to measure storage performance. Which of the following options will not affect the IOPS of the storage system?

Question153: Which of the following statements are wrong about the implementation principle of file system snapshots? (Multiple choice)

Question154: Before deploying a disaster recovery solution, what information needs to be collected? (Multiple choices)

Question155: What types of deduplication does the Huawei OceanStor integrated backup solution support? (Multiple choice)

Question156: In the process of dealing with storage failures, which of the following principles should be followed? (Multiple choice)

Question157: Highway reconstruction project A uses Huawei's Hyper-converged Storage LightDC ROBO branch solution. Which of the following options reflects the advantages of this solution? (Multiple choice)

Question158: Adjust the TCP parameters for LINUX clients accessing the Huawei Oceanstor 9000 cluster to improve access performance. Under a 10GE network, the size of the TCP receiving and sending buffer is recommended to be increased to the following value, net.ipv4.tcp_rmem='4000000 8000000 16000000' net.ipv4+tcp_wmem='4000000 8000000 16000000'

Question159: In N8500 V200NO01, which of the following commands can be used to check the status of the file system is online?

Question160: An enterprise purchased a set of Huawei distributed storage system, and now it needs to plan and deploy the network. Which of the following network plane must be planned for the group network plane? (Multiple choice)

Question161: What are the daily inspection performance indicators of the single-select big data storage system? (Multiple choice)

Question162: NFS is a method for realizing disk file sharing between Unix systems. It is a system protocol that supports application programs to access data on the server disk through the network on the client side.

Question163: Small business A purchased Huawei's hyper-converged storage to build the company's information platform. Which of the following switching modules does the hardware platform Fusi onsServer E9000 support? (Multiple choice)

Question164: During the process of the data migration in SmartMigration, the data request issued by the host I/O is synchronized to the source LUN and target LUN in real time through double writing, ensuring that the data after the migration is completely consistent. Which of the following statement about double writing is correct? (Multiple choice)

Question165: DASH Copy is an optimized auxiliary copy that copies all data blocks from the source disk library to the target disk library each time.

Question166: A large Internet company A purchased Huawei's hyper-converged storage to build an IT infrastructure platform. Which of the following scenarios can be applied? (Multiple choice)

Question167: With version 10 of the Simpana software, Commserver supports not only the installation in the Windows operating system, but also the installation in the Linux operating system.

Question168: The inforeplicator feature of Oceanstor 9000 (C30) product supports synchronous and asynchronous remote replication at the same time.

Question169: Backup can be regarded as a low-level disaster tolerance. Backup is the basis of disaster tolerance, and disaster tolerance can replace backup.

Question170: The backup situation of a certain enterprise application is that on February 1, a single-selected full backup of all files and directories was performed, February 2, February 3, February 4 Cumulative incremental backup was performed. On February 5, the business disk failed. Now I want to restore to the version on February 4. What backup files are needed?

Question171: File system backup needs to consider compatibility issues. Which of the following statements is wrong?

Question172: If the alarm indicator of the storage control box is yellow, it means that there is an emergency alarm in the storage system.

Question173: In the Huawei hybrid flash storage series storage system, which of the following is the wrong description of the relationship between the logical ports of IP drift?

Question174: Which of the following descriptions are correct about analyzing and adjusting the CIFS transfer size of the Oceanstor 9000 system? (Multiple choice)

Question175: In Huawei distributed storage, SCSI volumes with multiple mount points are called shared volumes, and iSCSI volumes are shared volumes. In order to support the backup capability of shared volumes, the block service also supports snapshots of shared volumes, and the snapshot process of shared volumes is the same as that of ordinary volumes.

Question176: When it is necessary to uninstall the multi-path software of Huawei UItraPath host, which one of the following operations is correct?

Question177: Which of the following solutions are correct about Oceanstor 9000 DeviceManager server failures? (Multiple choice)

Question178: When selecting storage devices, if the business requires a single hard disk IOPS greater than 3000, which of the following hard disk types are available for selection? (Multiple choice)

Question179: A multinational company has a huge business, with customer business data scattered in multiple locations, and the distance between locations is greater than 1000 km. The company hopes to centrally manage the backup data of each site, so that users can analyze and mine all data without affecting normal business, and any business site suffers a disaster, the company can take over the business and perform data recovery. In this case, which disaster recovery backup solution should the enterprise choose?

Question180: Which operating systems does eReplication support? (Multiple choice)

Question181: A company deployed multiple block service applications on the same Huawei distributed storage device, including daily backup, database sorting, and billing cycle settlement. The administrator found that these services would extremely consume system resources during a specific period of time. It happens during working hours that will affect other interactive businesses. Administrators use QoS features to limit the consumption of storage resources by these services according to their occurrence time period, and avoid affecting production services or interactive services. Which resources should administrators consider to restrict? (Multiple choice)

Question182: What are the key technologies for OceanStor 9000 to improve the performance of object storage applications? (Multiple choice)

Question183: When the Smartvirtualization feature is used to host external LUNs in a heterogeneous storage system, and the read I/O request for external LUN data does not go through the heterogeneous storage system, where might the data exist?

Question184: The creation of logical ports is based on physical Ethernet ports, bonded ports or VLANs, and is mainly used for business operations. At the same time, the main port needs to be designated. When the main port fails, the service will be taken over by the failover port.

Question185: Which of the following is not included in the three elements of Huawei's primary and backup disaster recovery program information research?

Question186: Regarding the storage layer data replication disaster recovery technology, which of the following statements is correct?

Question187: The transmission protocol used by the management network of the object storage service (compatible with OpenStack Swift) is:

Question188: A vendor's distributed storage system was put into operation for 100 days, running 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.
Which of the following is the availability of the software system?

Question189: Which one of the following descriptions about Oceanstor 9000's global cache is incorrect?

Question190: Huawei Oceanstor 9000, the client processing the write request will fragment the data according to the protection level specified by the file, write the data fragments to the power-saving memory on the corresponding node, and then calculate the verification data by each node. And write to the power-saving memory of each node. After all nodes write to the power-saving memory successfully, the write operation is successful.

Question191: When using Huawei OceanStor Toolkit V100R001 to perform inspection operations, which of the following items is not included in the inspection wizard?

Question192: Huawei Distributed Storage Block Service provides a snapshot mechanism to save the state of a user's data volume at a certain point in time, which can be used to export data and restore data later.

Question193: When performing Oceanstor 9000 network tuning, which of the following commands can check whether the network port is connected?

Question194: Which of the following description regarding managing fast storage resources is wrong?

Question195: What are the values of Huawei Oceanstor 9000 infoTier? (Multiple choice)

Question196: During the maintenance of the Huawei Oceanstor 9000 system, a dedicated person is required to keep the system root password. When transmitting the password, pay attention to encryption, and try to avoid transmitting the password by mail.

Question197: Huawei's hyper-converged storage uses a distributed storage logic architecture. Which of the following is the function of the OSD module?

Question198: D. ME supports active operation and maintenance based on the Al& strategy engine. Through the DME platform, which of the following are available for the functions that can be completed? (Multiple choice)

Question199: Metadata in Oceanstor 9000 object storage realizes redundancy between nodes through mirroring, and each copy is an independent and complete copy, thereby improving the security of metadata and the performance of metadata in parallel.

Question200: Operation and maintenance are based on technology and provide 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)

Question201: Which protocol does Huawei Distributed Storage Object Service use to obtain resource statistics of tenants and buckets?

Question202: The network connection is required before the initial configuration of the big data system. The networking of Huawei Oceanstor9000 does not include

Question203: Which of the following description about the multi-version function of the bucket is correct? (Multiple choice)

Question204: When building a video surveillance cloud, what are the advantages of using object storage? (Multiple choice)

Question205: Which of the following statements about the characteristics of Huawei's horizontally extended file storage NFS business are correct? (Multiple choice)

Question206: Which of the following options are not DSS capabilities?

Question207: Which of the following options is wrong of Huawei Oceanstor 9000 file pool strategy?

Question208: The disaster recovery system can copy business data to a local or remote data center for protection, but not all data corruption/loss can be recovered. Which of the following data corruptions cannot be recovered by the disaster recovery system? (Multiple choice)

Question209: A storage device of an enterprise generates a fault alarm. After engineer A arrives at the customer site, he prepares to collect storage device information and pass it to R&D for further analysis.
What collection methods can Engineer A use to collect information? (Multiple choice)

Question210: Among the following OceanStor 9000 software features, which feature can provide file system snapshots?

Question211: The SmartDedupe& SmartCompression technology in Huawei Oceanstor all-flash storage will calculate similar fingerprints (SFP) and weak hash fingerprints (FP) at the same time when writing data. If the fingerprint already exists in the local fingerprint table, it will perform online de-duplication; if it is new data, perform compression and save similar fingerprints, and then perform background deduplication processing.

Question212: In the Oceanstor 9000 storage system, which of the following system resources can be controlled by the InfoAllocator feature? (Multiple choice)

Question213: The Huawei Oceanstor 9000 InfoTier file pool strategy will determine the storage location for file creation and the target classification when files are re-striped. Which of the following statements about the file pool strategy is wrong?

Question214: Among the following backup media, which ones support the data deduplication function? (Multiple choice)

Question215: The file sharing interface provided by Huawei Distributed Storage System does not include which of the following options?

Question216: The access mode of intelligent load balancing technology in Huawei distributed storage is Active-Active.

Question217: In CIFS file sharing, when the client adopts the SMB3.0 protocol, after a single connection channel fails, SMB3.0 Multichannel automatically uses other channels to continue to transmit data.

Question218: Which of the following description of the Huawei Oceanstor 9000 software module is wrong?

Question219: When the phone is accessing the LINUX client of Huawei Oceanstor 9000 cluster, the number of concurrent NFS on the client can be appropriately reduced to improve access performance

Question220: When Huawei Oceanstor 9000 is used in large file scenarios, we should focus on its OPS.

Question221: The OceanStor backup solution architecture includes three parts: the central site, branch sites, and remote backup sites. Only the backup system can be deployed at the backup site, but the production system cannot be deployed.

Question222: 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 of the node, the system will automatically change the data during the offline period. Update to the node that is back to normal.

Question223: Among Huawei's many disaster recovery solutions, which of the following scenarios can eReplication be used? (Multiple choices)

Question224: Which of the following statements regarding the characteristics of Huawei's hybrid flash storage block service are correct? (Multiple choice)

Question225: The object/file interoperability feature provided by Huawei Distributed Storage is based on the mode of superimposing NAS functions on the object storage system, and what kind of file sharing access capabilities are provided on the basis of distributed object services?

Question226: In the Huawei dual-active disaster recovery solution, the peak write bandwidth of an application needs 10MB/s, the average write bandwidth needs 200KB/s, the average write I/O volume is 4KB, and the bandwidth utilization rate is 70%. Then the application deploys asynchronous remote replication. What is the bandwidth required?

Question227: Regarding the high-reliability architecture of Huawei's all-flash storage, which of the following statements are correct? (Multiple choice)

Question228: The HyperLock (WORM) feature of Huawei Storage enables files to be written only once, cannot be written repeatedly, and cannot be modified, deleted, or renamed.

Question229: Both HDD and SSD hard disks show huge performance differences under different IO patterns. The Append Only Plog technology in Huawei's distributed storage can provide the best down-disk performance model for different hard disk types.

Question230: A company uses Huawei Distributed Storage Object Service to save transaction orders and enables the WORM function. The administrator finds that some objects can only be read but cannot be modified. What WORM state might these objects be in? (Multiple choice)

Question231: A customer has plans to store a large number of files in a directory of Huawei Oceanstor 9000. Most of these files are between 64-128K in size. In order to improve disk utilization and read/write performance, how big should be the strip of files in the file directory?

Question232: After Huawei Distributed Storage turns on the object deduplication function, the system will automatically find duplicate objects globally, and only keep one copy of the same object while deleting redundant duplicate data. The original duplicate data will be replaced with a reference to the reserved single copy.

Question233: Which of the following scenarios is most suitable for the SmartCache feature of Huawei hybrid flash storage?

Question234: Huawei Oceanstor 9000 (30) infoEqualizer function is limited by license, including application dynamic name, static domain name and partition function, and supports load scheduling in polling mode.

Question235: A customer unit has purchased nine OceanStor9000 storage nodes. When planning and deploying, it requires any three hard disks and one storage node to fail, which does not affect data integrity, and the overall storage space utilization rate is not less than 80%. Which of the following balance ratio appropriate?

Question236: 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 reflect this feature? (Multiple choice)

Question237: In the Huawei HyperMetro active-active solution, when the active-active data center link fails, the priority site can be submitted to arbitration first, so that the priority site can win the arbitration first and continue to provide host services.

Question238: A company wants to deploy a big data platform. It is 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 use of the native HDFS MameNode master/standby mode can meet the demand.

Question239: FusionStorage Block adopts a unique data block slicing technology, and a data routing algorithm based on DHT Hash, which can evenly distribute the data of the volume to the fault domain of a larger resource pool, so that each volume can get larger The IOPS and MBPS performance also makes the load of each hardware resource relatively balanced.

Question240: Which of the following storage nodes will configure an SSD as a read cache by default? (Multiple choice)

Question241: In order to ensure the performance and improve the utilization of the hard disk in Huawei Oceanstor 9000, it is recommended to set the stripe value according to the expected average file size in a directory. Which is the following description of the stripe setting is wrong?

Question242: What are the correct statements about the Huawei Oceanstor 9000 software version upgrade? (Multiple choice)

Question243: Huawei distributed storage can provide a big data storage platform based on the characteristics of big data, using Scale-out architecture and using general-purpose server hardware.