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السؤال #1
A colleague suggests using SmartMigration to improve write performance on certain LUNs. This is:
A. Not possible in any situation
B. Possible in all situations
C. Possible in some situations
D. Only a temporary solution
عرض الإجابة
اجابة صحيحة: C
السؤال #2
When delivering a flash storage project, Huawei engineers introduced the multi - tenant feature of flash storage to the customer. This feature isolates service dat a. Although different tenants cannot access each other's LUNs, they can access each other's file system.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #3
Huawei's converged storage has the function of parallel fast data reconstruction. Data fragments are broken up in the resource pool. After a hard disk fails, it can be automatically rebuilt in parallel within the full resource pool. Only the actual data is rebuilt without a separate hot spare disk.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #4
An industry customer purchased a Huawei OceanStor Pacific 9950 distributed storage for business deployment. During an inspection, the engineer found that the location indicator of the main memory hard disk module of the device was always yellow. Please analyze the status of the main memory hard disk module at this time?
A. The main memory hard disk module is operating normally
B. The main memory hard disk module is being positioned
C. Main memory hard disk module failure or pre-failurecorrect
D. The main memory hard disk module is not powered on
عرض الإجابة
اجابة صحيحة: C
السؤال #5
Which of the following statements about ThinLun and ThickLun stored in Huawei Oceanstor is wrong? (Multiple choice)
A. Both ThickLun and ThinLun need to configure the initialization capacitycorrect
B. Both ThickLun and ThinLun can be configured in the same storage pool
C. Both ThickLUN and ThinLun can be greater than or equal to the available capacity of the storage pool where they are locatedcorrect
D. Both ThickLun and ThinLun can be created in batches
عرض الإجابة
اجابة صحيحة: AC
السؤال #6
Which one of the following descriptions about the unified namespaces is incorrect?
A. Each file sharing directory is a subdirectory of the namespace
B. A unified namespace provides users with a unified storage resource pool to achieve centralized management and allocation of storage space
C. As the root directory of the entire system, the namespace cannot be shared or accessed
D. The namespace is automatically created when 0ceanStor 9000 is started, and its name is consistent with the system naming
عرض الإجابة
اجابة صحيحة: C
السؤال #7
Huawei Oceanstor 9000 provides external domain name resolution services through the "InfoEqualizer DNS IP address", accessed by dynamic domain names, the following types of file sharing, if a node failover occurs, which of the following sharing methods will not be interrupted?
A. NFSv3 file sharingcorrect
B. NFSv4 file sharing
C. CIFS file sharing
D. FTP file sharing
عرض الإجابة
اجابة صحيحة: A
السؤال #8
Which of the following features does SmartThinLun in Huawei storage support? (Multiple choice)
A. SmartDedupecorrect
B. SmsrtQuota
C. SmartErase
D. SmartCompressioncorrect
عرض الإجابة
اجابة صحيحة: AD
السؤال #9
When delivering a distributed storage project, Huawei engineers focused on introducing OceanStorPacific's parallel file system service to customers. Which of the following descriptions of this service is wrong?
A. Use fixed-length, large-grained primes to ensure large I/O sequential read and write performance
B. Large I/O can be forwarded to the home node for direct processing, eliminating the distributed lock overhead, thereby significantly reducing the read and write latency of large I/Ocorrect
C. Small I/Os are aggregated through the cache before being put into disk, which not only achieves ideal latency but also improves the utilization rate of small files
D. In terms of I/O flow, large I/O is transferred to the disk in a direct manner to improve bandwidth capacity
عرض الإجابة
اجابة صحيحة: B
السؤال #10
The customer purchased several Huawei OceanStorPacific storages for deploying NAS file services. During the use of this file service, it is usually necessary to allocate and restrict resources to users based on the SmartQuota feature. Which of the following descriptions of SmartQuota file system quota technology is wrong?
A. If an alarm is generated and needs to be eliminated, SmartQuota's processing strategy is generally to eliminate the alarm immediately when the user's used resources are lower than the soft quota
B. SmartQuota is suitable for file service scenarios
C. The entire I/O operation and quota update either succeeds completely or fails completely
D. During each I/O operation, check whether the used capacity and number of files in the quota plus the incremental capacity and files of this operation will exceed the hard quota
عرض الإجابة
اجابة صحيحة: A
السؤال #11
A company purchases two sets of Huawei's scale-out file storage, which are deployed in the production data center and the 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?
A. The replication zone channel is a set of communication links established in the same replication zone of the master and slave storage systemscorrect
B. Only one replication zone channel is allowed to be created between two storage system clusters
C. The remote replication pair between the two clusters will correspond to their respective replication zone channels
D. The authentication and flow control of the remote replication communication link are completed through different channels
عرض الإجابة
اجابة صحيحة: A
السؤال #12
In Huawei OceanStor V3, which of the following statements about cloning is correct? (Multiple choice)
A. There can only be one master LUN in a clone, and multiple slave LUN can be added, but the master LUN and all slave LUN are one paircorrect
B. During the initial synchronization of the cloned master-slave LUN, the host service will be suspended to ensure data consistency
C. After the synchronization is completed, if there is a host IO write, it will be written to the primary LUN and the secondary LUN at the same timecorrect
D. After splitting and then synchronizing, incremental synchronization will be performedcorrect
عرض الإجابة
اجابة صحيحة: ACD
السؤال #13
Huawei Oceanstor 9000 integrates the hard disk resources of all nodes through DFS, and provides a unified namespace to the outside world.
A. TRUEcorrect
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #14
A financial customer purchased a Huawei flash storage for business deployment. In order to improve the space utilization of the storage system, the engineer configured the deduplication and compression feature on the storage system. If the engineer wants to query the data reduction information of the LUN group at this time, which of the following commands can be used to configure it?
A. change lun migration split consistency
B. show workload type detail info
C. show lun group reduction info lun group Id=ccorrect
D. show lun group reduction switch lun id=c
عرض الإجابة
اجابة صحيحة: C
السؤال #15
(Judgment) FusionStorage Block uses a unique data block slicing technology and data based on DHT Hash The routing algorithm can evenly distribute the data of the volume to the fault domain of a larger resource pool, so that each volume can obtain a larger IOPS and MBPS performance also makes the load of each hardware resource relatively balanced.
A. T
B. F
عرض الإجابة
اجابة صحيحة: A
السؤال #16
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?
A. NFS uses the TCP protocol to send and receive data
B. Enabling jumbo frames can reduce TCP loss and improve performance
C. In order to support jumbo frames, all corresponding Oceanstor 9000 nodes need to be set accordingly
D. Oceanstor9000 supports jumbo frames, and it is necessary to set the MTU of all front-end and back-end business network portscorrect
عرض الإجابة
اجابة صحيحة: D
السؤال #17
What level of RPO and RTO can synchronous remote replication meet?
A. RPO>0 RTO>0
B. RPO=0 RTO≈0correct
C. RPO≈0 RTO=0
D. RPO=0 RTO=0
عرض الإجابة
اجابة صحيحة: B
السؤال #18
When engineers perform storage-side tuning on Huawei flash memory, they will take the cache prefetch strategy into consideration. Which of the following is not a type of cache prefetching strategy?
A. Fixed prefetch
B. Smart Prefetch
C. No prefetching
D. Elastic prefetchingcorrect
عرض الإجابة
اجابة صحيحة: D
السؤال #19
A financial customer purchased a Huawei all-flash storage for business deployment. During daily storage use, the administrator found that the performance of the storage had large fluctuations, and then conducted relevant inspections on the performance issues. Which of the following is not a check item that needs to be done for performance fluctuation issues?
A. Check whether there are obvious storage background tasks at the fluctuation time point, such as data reconstruction, etc
B. Check whether there are any abnormal SmartKit operations during the fluctuation period
C. Check whether there is an obvious hit rate mutation at the fluctuation time pointcorrect
D. Check whether there are obvious hardware resource bottlenecks on the storage side at the fluctuation time point
عرض الإجابة
اجابة صحيحة: C
السؤال #20
When a node failure occurs in Huawei distributed storage, the system can automatically recover without manual intervention. Which of the following is the correct description of the node failure and recovery mechanism? (Multiple choice)
A. If it is detected that the data recovery task has been started for the faulty node, the administrator needs to manually format the storage space of the faulty nodecorrect
B. When a node failure is detected, the cluster automatically changes to a degraded state and reports an alarm, and stops distributing services to this node
C. If the administrator determines that the node cannot be recovered in a short time, the data recovery task can be started manually
D. When a node recovery is detected, the administrator needs to manually add it to the node list and distribute services normallycorrect
عرض الإجابة
اجابة صحيحة: ABD
السؤال #21
The scale - out storage system supports cabinet - level security. That is, N data blocks and M parity blocks are stored in different cabinets. If M nodes or M disks are faulty, the system can still read and write data without service interruption or data loss. If M cabinets are faulty, services may be interrupted.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #22
Which of the following options belong to the usage conditions of HyperClone?(Multiple choice)
A. The size of the primary LUN and the secondary LUN must be the samecorrect
B. The master LUN and slave LUN controllers need to be the samecorrect
C. The primary LUN and the secondary LUN can be in different storage systems
D. The primary LUN and the secondary LUN are on the same storage systemcorrect
عرض الإجابة
اجابة صحيحة: ABD
السؤال #23
An enterprise customer plans to purchase Huawei Oceanstor 9000 to meet its 10PB data storage requirements. The customer chooses the C36 node of Oceanstor 9000. The node is equipped with 4T SATA disks, and the nodes use 4+2 distributed RAID storage. Assuming that the system loss (including metadata and system data possession, hard disk loss, etc.) is 10%, theoretically, how many C36 nodes does the customer need to purchase at least to meet their business data storage needs?
A. 119
B. 72
C. 131correct
D. 107
E. 87
عرض الإجابة
اجابة صحيحة: C
السؤال #24
(multiple choice) The daily inspection performance indicators of the big data storage system include:
A. Disk utilization
B. CPU utilization
C. Memory utilization
D. Node throughput
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #25
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?
A. abcba
B. bcbab
C. acbab
D. babcbcorrect
عرض الإجابة
اجابة صحيحة: D
السؤال #26
Which of the following statements about the N8500 configuration process is correct?
A. Welcome Wizard-->Confirm Networking-->Select Configuration File-->Configure Storage Unit-->Configure NAS Engine-->Configure Device Location-->Complete Deployment
B. Confirm networking --> Welcome Wizard --> Select Configuration File --> Configure Storage Unit --> Configure NAS Engine --> Configure Device Location --> Complete Deploymentcorrect
C. Confirm networking --> Welcome Wizard --> Configure storage unit --> Select configuration file --> Configure NAS engine --> Configure device location --> Complete deployment
D. Confirm networking --> Welcome Wizard --> Select Configuration File --> Configure NAS Engine --> Configure Storage Unit --> Configure Device Location --> Complete Deployment
عرض الإجابة
اجابة صحيحة: B
السؤال #27
Which of the following is the maintenance software supported by Huawei's hybrid flash storage products?
A. SmartKitcorrect
B. OceanStor UltraPath
C. BCManager eReplication
D. OceanStor eSDK
عرض الإجابة
اجابة صحيحة: A
السؤال #28
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.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #29
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.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #30
In the outline design stage, it is necessary to output HLD (High Level Design).
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A

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