EMT Practice Test

1. Question Content...

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Question1: Huawei OceanStor 9000 uses the DFS to consolidate disk resources of all nodes, providing a unified namespace.

Question2: When planning the front-end service network IP address for the C72 node of Huawei Oceanstor 9000, you need to plan 4 static front-end IP addresses for each node.

Question3: Huawei's hybrid flash storage supports the integration of NAS and SAN, and the software protocol stacks of the two are completely parallel, and they are integrated on the resource allocation and management plane.

Question4: What are the correct statements about Huawei OceanStor 18810 V5 products? (Multiple choice)

Question5: 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.

Question6: The customer puts forward the requirements of RPO=0 and RTO=0, and the colleague chooses the master-standby synchronous remote replication disaster recovery plan, so the plan is?

Question7: Which alarm securities are supported by OceanStor BCManager eReplication? (Multiple Choice)

Question8: Store the data block in the cache first, and then de-duplicate the tree when the system is idle. The advantage is that it does not affect data transmission performance, but the disadvantage is that additional storage space is required."
Which deduplication technique is described above?

Question9: Which of the following features in Huawei Oceanstor 9000 (C30) does not require the activation of the corresponding license?

Question10: Which type of backup networking's working process is like the following:
1. A snapshot volume is created for a data volume that you want to back up.
2. The backup server backs up the data on the snapshot volume to the backup device.

Question11: Which of the following iSCSI connection modes is the most expensive but provides the best performance?

Question12: Which storage tier is not supported by SmartTier of the OceanStor V3 storage systems?

Question13: Which of the following are the CMS cluster's functions? (Multiple Choice)

Question14: Deduplication is categorized as: (Multiple Choice)

Question15: The HyperMetro active-active data center solution includes data centers A and B.
When the array of data center A fails, which of the following statements are correct? (Multiple choice)

Question16: Which of the following statements are correct about Huawei Local HA Solution that uses HyperMirror? (Multiple Choice)

Question17: Which of the following descriptions are correct about the CIFS protocol? (Multiple choice)

Question18: Data replication technologies used for disaster recovery cannot be implemented on which layer?

Question19: What is the default port for Device Manager?

Question20: Which protocol provides the fastest transfer speed?

Question21: File system backup needs to consider compatibility issues. Which of the following statements is wrong?

Question22: Which of the following statements about the SmartQuota feature of Huawei OceanStor all-flash storage are correct? (Multiple choice)

Question23: With Huawei's intelligent distributed storage products, clusters can only provide block storage and object file storage interfaces for upper-layer applications.

Question24: Which of the following statements about InfoTier node pools in Huawei OceanStor 9000 are true? (Multiple Choice)

Question25: What are the external interfaces supported by HDFS Plugin? (Multiple choice)

Question26: When planning and designing storage solutions, if customers focus on satisfying performance, which of the following aspects should be planned and designed? (Multiple choice)

Question27: Geo-Redundant Solution is implemented based on HyperMetro.

Question28: What are the deduplication classifications? (Multiple choice)

Question29: Which of the following products belong to the OceanStor 18000 storage series? (Multiple choice)

Question30: Huawei Oceanstor 9000 alarm notification methods include email notification and SMS notification.

Question31: When deploying FusionStorage file service, a customer deploys 10 FusionStorage nodes and two management network switches.
In this scenario, how many IP addresses should be assigned for the management network?

Question32: 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'

Question33: In OceanStor V3 storage systems, remote replication allows a user to perform a primary/secondary switchover when the secondary LUN is in which data statuses? (Multiple Choice)

Question34: Both the production center and disaster recovery center of a bank use Huawei's hyper-converged storage products, and the two centers perform disaster recovery through asynchronous replication. The copied network type can support GE/10 GE/25 GE.

Question35: What type of deduplication does the following describe?
Dab blocks are directly stored to the cache when the system is busy and will be deduplicated during off-peak hours. The advantage is that data transmission performance is not affected. The disadvantage is that the extra storage space is required.

Question36: What are valid criteria in determining the performance requirements of a solution? (Multiple Choice)

Question37: When an asynchronous remote replication relationship is established between the primary volume of the primary site and the secondary volume of the remote slave site, an initial synchronization will be initiated. After the initial synchronization is completed, the data status of the secondary volume becomes complete, and then which of the following procedures is followed to complete the periodicity data synchronization? (Multiple choice)

Question38: 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.

Question39: Which of the following descriptions is incorrect about the technical principle of the DCL small bitmap in remote replication? (Multiple choice)

Question40: Which of the following statement about a Fibre Channel SAN is incorrect?

Question41: 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)

Question42: 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?

Question43: What level of RPO and RTO can synchronous remote replication meet?

Question44: 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.

Question45: Which of the following statements about SmartQoS is true:
A) Lower-priority I/O can be rejected in favor of higher-priority I/O?
B) SmartQoS uses a queuing system for I/O requests?

Question46: Huawei's hyper-converged storage has multiple data security assurance mechanisms. Which of the following statements is correct? (Multiple choice)

Question47: The QoS characteristics of the object service, for applications with different priorities, different buckets can be configured, and the TPS of the buckets and the allocation of bandwidth resources can be controlled through QoS; different QoS policies can be configured for VIP tenants and ordinary tenants in the same system to ensure the quality of service for high-priority tenants.

Question48: 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.

Question49: Which of the following statements about the erasure code N+M redundancy implemented by Huawei OceanStor 9000 is false?

Question50: 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?

Question51: An enterprise plans to purchase a set of storage equipment. According to the IOPS requirements of the enterprise business, a single hard disk of storage needs to support 3000 IOPS. Considering the cost factor, it is recommended to use which of the following hard disks best meets the requirements of the enterprise?

Question52: Which of the following descriptions about InfiniBand technology is wrong?

Question53: Which of the following is not included in the three elements of Huawei's primary and backup disaster recovery program information research?

Question54: Which of the following statements about the concepts related to the HyperReplication feature are correct? (Multiple choice)

Question55: The game live broadcast platform uses Huawei's all-flash storage FlashLink many-core technology to ensure its business. Regarding the many-core technology, which of the following describes the scenario of partitioning by CPU in the controller?

Question56: For a storage pool you can change the hot spare policy in a later stage.

Question57: In the era of big data, traditional technology upgrades can no longer meet the needs of big data processing. Which of the following is not the direction of technology development in the era of big data?

Question58: In an OceanStor V3 populated with a number of SSDs, which of the following statements about SmartCache is/are true? (Multiple Choice)

Question59: 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.

Question60: A TV station uses a Huawei hybrid flash storage device in FC networking to store videos. When using it recently, occasionally the video screen freezes. Engineer A will troubleshoot the fault after arriving at the site. Which of the following is the correct troubleshooting method? (Multiple choice)

Question61: The three elements of the CAP principle of a distributed database system are: Consistency, Availability, and Partition tolerance.
Regarding the three elements of CAP that the database follows, which of the following descriptions are correct? (Multiple choice)

Question62: OceanStor 9000 object storage service (compatible with Amazon S3 APIs and OpenStack Swift APIs) provides RESTful APIs externally. Clients can store data to the storage nodes through the RESTful APIs.

Question63: The MDS cluster in the DFS provided by OceanStor 9000 divides the file system metadata into a tree-like data structure, and different storage nodes only store a part of the subtree after the cut.

Question64: Which type of log is not supported by FusionStorage?

Question65: n the Huawei Oceanstor 9000 software architecture, the distributed object storage layer is built on the basis of the distributed file storage layer.

Question66: In Huawei OceanStor 9000, a file pool is a collection of files that have specific characteristics. A file pool policy defines rules for storing a file pool in a node pool.

Question67: Huawei Distributed Storage Object Service provides finely controlled Qos capabilities, and provides tenant and bucket-level TPS and bandwidth granular service quality control. What operations can be precisely controlled? (Multiple choice)

Question68: In the Oceanstor 9000 storage system, the Info Allocator hard quotas for directory A and its sub-directory B are set to 1GB and 2GB respectively. Which of the following statements is correct? (Multiple choice)

Question69: Which of the following statements about synthetic full backup is wrong?

Question70: For which scenario Huawei Active/Passive Disaster Recovery Solution is not suitable?

Question71: Which of the following statements about the deployment of Huawei's active-active data center are correct? (Multiple choice)

Question72: Which of the following are subsystems of OceanStor BCManager eReplication? (Multiple Choice)

Question73: Which quota types are supported by the InfoAllocator feature of Huawei OceanStor 9000? (Multiple Choice)

Question74: Cloudera Hadoop docking process includes:
1. Data preparation.
2. Verify the connection status
3. Install HDFS Plugin to Cloudera Hadoop nodes and clients.
4. Migrate business data
Which of the following options is in the correct docking sequence?

Question75: What are the daily inspection performance indicators of the single-select big data storage system? (Multiple choice)

Question76: Which automatic load balancing method does Huawei OceanStor 9000 InfoEqualizer support by default?

Question77: Multipathing technology is introduced to address single points of failure (SPOF) on storage networks.

Question78: Compared with traditional RAID algorithms, the erasure code redundancy technology used by Huawei OceanStor 9000 provides higher reliability and more flexible redundancy policies.
Which of the following statements about the erasure code N+M principle is false?

Question79: If a switch administrator does not want to use port zoning, it is preferred that he uses WWN zoning instead of alias zoning.

Question80: Local HA Solution is implemented based on HyperMetro.

Question81: Which of the following statements about big data processing technology are true? (Multiple Choice)

Question82: Which authentication modes are not supported by the CIFS sharing function of Huawei OceanStor 9000? (Multiple Choice)

Question83: Which of the following are Huawei remote DR Solutions? (Multiple Choice)

Question84: What are the necessary components included in the architecture of the N80OONAS system? (Multiple choice)

Question85: What thresholds can be set for eReplication? (Multiple choice)

Question86: Which of the following are Huawei Intra-City DR Solutions? (Multiple Choice)

Question87: During data backup, data may be deduplicated to save space. For example, if data blocks A and B are the same, only one data block is physically stored, and the index corresponding to block A or B is deleted.

Question88: For the description of Huawei Oceantor9000 products, which of the following options is wrong?

Question89: Which are rules for configuring file system backup policies? (Multiple Choice)

Question90: What key technologies are delivered by the OceanStor 9000 to improve the performance of object storage service? (Multiple Choice)

Question91: Which of the following descriptions of Oceanstor 9000 Wushan file system is wrong?

Question92: Regarding the description of the data protection function of the Huawei Oceanstor 9000 system, which of the following options is wrong?

Question93: Which of the following description about the characteristics of big data for IDC are correct? (Multiple choice)

Question94: 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.

Question95: Huawei OceanStor V3 hardware offers Converged Storage which means every OceanStor V3 natively supports DAS and SAN.

Question96: In a large backup domain, Simpana backup software ca n be used to set multiple CSs (CommServes) for load balancing to improve efficiency.

Question97: Which of the following statement does not belong to the basic object operations?

Question98: Which of the following backup media do not support deduplication? (Multiple Choice)

Question99: Which of the following descriptions are correct about the data backup strategy? (Multiple choice)

Question100: Which of the following descriptions of Huawei's OceanStor backup solution is wrong?

Question101: Which of the following options does not belong to the network architecture of FusionStorage?

Question102: When restarting an OceanStor V3 engine, we should:

Question103: What scenarios can SmartVirtualization and SmartMigration be applied when they work together? (Multiple Choice)

Question104: Huawei Active-Passive DR Solution can not support heterogeneous storage resources.

Question105: Which designs improve the system reliability of Huawei OceanStor 9000? (Multiple Choice)

Question106: In the Oceanstor 9000 system, a node refers to a collection of nodes with the same characteristics (physical type/access performance). Dynamic hierarchical storage allows physical nodes in the same file system to be divided into different node pools.

Question107: In RAID2.0+ technology, what is the default size of the CHUNK segmented from SAS hard disks in MB?

Question108: Which of the following statements about media deduplication is false?

Question109: 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.

Question110: Which of the following challenges is not faced by big data analysis?

Question111: What are the main network file sharing protocols supported by the NAS system? (Multiple choice)

Question112: If the space hard quota is exceeded, a write operation will: (Multiple Choice)

Question113: 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?

Question114: Which of the following statements about AK/SK authentication process is incorrect?

Question115: 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.

Question116: A NAS storage system is dedicated to storing and managing which data type?

Question117: Huawei's hyper-converged storage adopts the structure of distributed storage logic frame. Which of the following is the function of the MDC module?

Question118: Which of the following features is used to achieve the Huawei Geo-redundant DR Solution?

Question119: 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?

Question120: In Huawei OceanStor 9000, which authentication mode is not supported by NFS sharing?

Question121: The remote reporting functionality called Cloud Service is:

Question122: Which are advantages provided by parallel deduplication? (Multiple Choice)

Question123: Which of the following statements about Huawei OceanStor 9000 is false?

Question124: Which of the following scenarios is not suitable for the promotion of active and standby disaster recovery solutions?

Question125: A customer plans to deploy an active/passive disaster recovery solution. The distance between the active and passive sites is about 1000 km. It is required that the RPO be shorter than 1 minute.
In this case, asynchronous remote replication is recommended.

Question126: What are the application maintenance principles of OceanStor backup solution?

Question127: In RAID2.0+ technology, what is the default size in MB of the CHUNK segmented from SAS hard disks?

Question128: The backup solution can prevent the loss of production data or the data center suffers a devastating disaster, the recovery time is short, and the business continuity is guaranteed.

Question129: 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?

Question130: Which of the following options belong to the function of the CMS cluster? (Multiple choice)

Question131: Which of the following statements are correct?
1. Backup can prevent misoperations and system issues.
2. DR can prevent production data loss in catastrophic data center failures.

Question132: Which of the following are hardware faults? (Multiple choice)

Question133: Which are big data's characteristics defined by IDC? (Multiple Choice)

Question134: Every OceanStor V3 model is fitted with at least 6 coffer disks.

Question135: An OceanStor 9000 must be equipped with a minimum of three nodes that can vary in types.

Question136: The backup management system includes backup management software and backup management server. Which of the following items can be managed? (Multiple choice)

Question137: Which of the following features cannot improve the performance of Huawei's hybrid flash storage products?

Question138: Which of the following are Huawei DR Solutions? (Multiple Choice)

Question139: Based on the HyperMirror technology of the Huawei OceanStor storage array, it achieves application level local high availability, zero data loss in heterogeneous array failures, and zero business interruption (RPO=0, RTO=0).

Question140: Which software module is not included in the OceanStor 9000 product?

Question141: Regarding the description of the big data storage and calculation separation solution, which of the option is wrong?

Question142: Which are customer benefits provided by the InfoTier feature of Huawei OceanStor 9000? (Multiple Choice)

Question143: For a certain multi-user multimedia on-demand service application, users use different code streams. The prefetch strategy that should be selected for this application when planning the LUN of the back-end N8500 cluster IAS storage system is:

Question144: SmartCache can support both SAN and NAS services.

Question145: Select all that apply.
Which functions are provided by the ACC module? (Multiple Choice)

Question146: The InfoLocker feature of Huawei OceanStor 9000 can be used to meet the requirements of scenarios where data is written once and read multiple times.

Question147: Where cannot the data replication technology used for disaster recovery be implemented?

Question148: Which of the following statements is correct?
Statement 1: Manually selecting disks for a disk domain is a risky, therefore unadvised, process.
Statement 2: All LUNs in a disk domain must share the same RAID level.

Question149: The storage capacity required by site A is 2543GB, the storage capacity required by site B is 3000GB, and the backup data of site B is remotely copied to site A for storage. Consider the case of replication compression, the compression ratio is 3. What is the back-end storage capacity required for computing site A?

Question150: 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.

Question151: Which of the following is an SHA-256 algorithm?

Question152: Which network file sharing protocols are supported by a NAS storage system? (Multiple Choice)

Question153: In the HyperMetro active-active data center solution, which of the following statements about the static priority mode used for brain-split prevention is false?

Question154: What method is used by the OceanStor 9000 object storage service (compatible with Amazon S3) to store and search data?

Question155: When OceanStor BCManager is used to test disaster recovery switchover and switchback, the storage system at the production site and that at the disaster recovery site must support the snapshot feature.

Question156: Which of the following authentication methods do remember mode Answer mode CIFS support? (Multiple choice)

Question157: Which of the following is not covered by the backup policy management?

Question158: What types of quotas does OceanStor9000 InfoAllocator support? (Multiple choice)

Question159: In the Huawei storage system, which of the following statements about rolling back HyperCDP are correct? (Multiple choice)

Question160: Which of the following technologies are used in Huawei's HyperVault disaster recovery solution? (Multiple choice)

Question161: During the maintenance of the Huawei Oceanstor 9000 system, it is recommended that the system administrator check the account routinely. What are the contents of the check? (Multiple choice)

Question162: The traditional storage controller is centralized, which will cause performance bottlenecks. In Huawei's hyper-converged FusioncCube, the distributed architecture and distributed storage make the storage performance bottleneck disappear.

Question163: Suppose that 2080 GB data needs to be backed up from the production center to the disaster recovery (DR) center.
How large bandwidth is required for meeting the backup demand under the condition that the backup window is 6 hours, no deduplication is performed, and bandwidth usage is 0.8?

Question164: When accessing the Windows client of the Huawei Oceanstor 9000 cluster, which aspects of the client can be adjusted to improve access performance? (Multiple choice)

Question165: A company deploys a set of multi-select Huawei distributed storage in data center A and data center B.
It mainly uses block services to carry database, virtual machines and other application-related services, and uses block services to work with active-active features and upper-layer applications to ensure Business continuity. For this dual-active scenario, which of the following descriptions are correct? (Multiple choice)

Question166: Which of the following statements is incorrect about the scenario where one primary backup domain and multiple branch backup domains exist?

Question167: Which of the following options belong to the rules for FusionStorage software deployment? (Multiple choice)

Question168: What is the heigth of the High Density disk enclosure?

Question169: Regarding Huawei's hybrid flash storage block service features, which of the following statements are correct? (Multiple choice)

Question170: An Internet company's storage system has two businesses, A and B, constantly competing for cache and network resources. This leads to longer time for other businesses. Among them, the business is a transaction processing application, and the B business is an analysis and query application, and the immediate response of the A business needs to be guaranteed. In order to solve this problem, the engineer has provided that the QOS superior optical level of the A business is higher than that of the business.

Question171: Which advantages does Huawei OceanStor 9000 cluster NAS technology have over traditional NAS storage systems? (Multiple Choice)

Question172: Which node types does Huawei OceanStor 9000 support? (Multiple choice)

Question173: Which of the following descriptions about InfoRevive is correct?

Question174: Offline software version upgrade of Huawei OceanStor 9000 interrupts services. The service downtime varies depending on the upgrade duration.

Question175: Where is the shared mapping table of HyperSnap stored?

Question176: What are the reasons for rapid development of the enterprise cloud storage? (Multiple Choice)

Question177: 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.

Question178: OceanStor9000 Wushan distributed file system supports online node expansion, storage capacity and computing power increase linearly, and finally provides users with linearly increasing bandwidth and concurrent data.

Question179: 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.

Question180: Which of the following statements about remote replication consistency groups implemented by OceanStor V3 storage systems is false?

Question181: Which of the following statements is true.
A) SmartPartition and SmartQoS are mutually exclusive?
B) SmartPartition and SmartQoS can be active in the same system, but not on the same LUN?

Question182: What unit does Huawei Distributed Storage provide CIFS/NFS/FTP sharing?

Question183: File-level deduplication is also called single-instance storage (SIS). It checks the attributes of the file to be stored according to the index and compares it with the stored file. If there is no identical file, it will store it and update the index, otherwise it will only be stored. Enter a pointer to an existing file.

Question184: Through project management, role management, and user management, FusionStorage file sharing authentication grants users permissions to access and use storage resources.

Question185: The customer needs RTO=0 and RPO=0 for the application business, which disaster recovery solution should be used?

Question186: Which of the following statements about the versioning for buckets are correct? (Multiple Choice)

Question187: What are the schedule maintenance principles of the big data storage system? (Multiple choice)

Question188: A company purchased a set of Huawei horizontally extended file storage to build a file sharing system. At present, the clients of each department use different IP subnets, and the storage administrator configures the front-end service IP addresses of all nodes to belong to the same subnet.
Which steps are correct for the storage administrator to configure the subnet? (Multiple choice)

Question189: In the Huawei disaster recovery solution, which description is correct about the sequence of synchronous remote replication?

Question190: 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 the cold and hot data diversion technology are correct?

Question191: In N8500 V200NO01, which of the following commands can be used to check the status of the file system is online?

Question192: 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)

Question193: In Simpana backup software, which is correct about incremental backup?

Question194: What authentication methods does Huawei Oceanstor 9000 CIFS sharing support? (Multiple choice)

Question195: The block service provides a linked clone mechanism and supports the creation of multiple snapshots based on a clone volume. The data content of each snapshot volume when it is first created is consistent with the data content in the clone volume, and subsequent modifications to the clone volume will not affect the original snapshots and other cloned volumes.

Question196: 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)

Question197: Huawei's hyper-converged storage uses a distributed hash algorithm, which of the following processes occur on the server side? (Multiple choice)

Question198: Which of the following statements is correct about the Huawei asynchronous remote replication for LUN?
1. HyperReplication/A of the OceanStor V3 storage systems adopt the multi-time-segment caching technology.
2. HyperReplication/A of the OceanStor V3 storage systems adopt the snapshot technology.

Question199: When the Oceanstor 9000 balance strategy switch is turned off, in the scenario of expanding nodes, deleting or disabling nodes, adding hard disks, hard disk failures, and slow disks. The system does not generate a balancing task, but if the node is deleted and the balancing strategy switch is turned on, the system will automatically complete the data balancing.

Question200: The object service uses Bucket Policy to control the access permissions of a single user or multiple users to the bucket or objects under the bucket, and which specific object operations can be controlled? (Multiple choice)

Question201: Huawei OceanStor 9000 provides a single file system, offering a unified file system namespace.
Which of the following statements about the unified file system namespace provided by Huawei OceanStor 9000 is false?

Question202: What are the features of the Huawei Oceanstor 9000 FTP service? (Multiple choice)

Question203: If a disk in an OceanStor 9000 stays offline for 15 minutes, the system obtains the data on the disk through calculations and then writes the data to other functional disks.

Question204: Which of the following concepts are used in object storage service (compatible with Amazon S3 APIs)? (Multiple Choice)

Question205: In a remote replication, the size of the secondary LUN on the disaster recovery storage system is larger than or equal to that of the primary LUN on the production storage system.

Question206: A bank's production center and disaster recovery center use Huawei's hyper-converged storage. The replication link between sites is recommended to be within 3000 KM, the minimum connection bandwidth is not less than 10 Mbps in both directions, and the average write bandwidth of the replicated volume is less than the remote replication bandwidth.

Question207: Which of the following statements about the backup domain of the OceanStor Backup Solution are incorrect?

Question208: Which of the following scenarios is most suitable for the SmartCache feature of Huawei hybrid flash storage?

Question209: Huawei SmartVirtualization feature supports offline takeover and online takeover. Which of the following statements about these two methods are correct? (Multiple choice)

Question210: Which of the following statements about the features of Huawei HyperVault are correct? (Multiple choice)

Question211: 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.