H13-622 Online Practice Questions and Answers

You can use the HUAWEI OceanStor Toolkit to perform the operations such as preventive maintenance, information collection, and upgrade for the HUAWEI OceanStor 9000.

A. True

B. False

Multiple users access a multimedia VOD application at different bit rates. Which prefetch policy should be selected for the LUNs on the background N8500 clustered NAS storage system?

A. No prefetch

B. Constant prefetch

C. Intelligent prefetch

D. Variable prefetch

You can check VCS cluster logs by viewing the Engine_A.log file in the /var/VRTSvcs/log directory on an N8500 storage system.

A. True

B. False

A NAS storage system supports file system sharing, and the underlying protocol transmits data based on iSCSI.

A. True

B. False

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 is incorrect?

A. Data to be written is divided into N data blocks of the same size.

B. The erasure code algorithm calculates M parity blocks for every N consecutive data blocks. (The value of M is smaller than that of N.)

C. N+M data blocks are concurrently stored to different disks.

D. In erasure code storage mode, the storage system tolerates a concurrent failure of N-l disks at most.

Which of the following statements about the high availability daemon (HAD) function of an N8500 clustered NAS system are correct? (Select three.)

A. Each host in the N8500 cluster runs a HAD process.

B. The hastart command can be executed to enable the had and hashadow services to automatically start.

C. HAD is used to monitor and manage the statuses of all services on the clustered NAS system.

D. The clustered system uses hashadow to monitor the HAD process. If HAD becomes abnormal, hashadow can restart HAD.

The three mainstream storage forms are as follows:

1)SAN storage that provides block resources;

2)NAS storage that provides file system resources;

3) object-based storage (OBS). SAN storage and NAS storage are traditional storage forms.

Which of the following statements about the characteristics of the three storage forms are correct? (Select

three.)

A. In traditional storage forms, disks are partitioned, file systems record file structures based on a tree relationship, and metadata is used to identify the use of blocks.

B. Objects are the basic units of OBS. Each object is a composite of data and data property sets.

C. In the OBS mechanism, data and metadata are stored and managed in a distributed manner.

D. OBS is typically oriented to structured data applications.

Which of the following device indicator states will not appear after an OceanStor storage system powers up and operates properly?

A. The system Alarm indicators are off.

B. The disk Running indicators are steady green.

C. The disk Alarm/Location indicators are steady red.

D. The system Running indicators on the GE switches are blinking green.

Which of the following statements about the quota feature of Huawei OceanStor 9000 is false?

A. Quotas can be set for users.

B. Quotas can be set for user groups.

C. Quotas can be set for directories.

D. Quotas can be set for files.

The municipal public security bureau of a city needs to periodically archive each police station's video surveillance data.

If the solution provided by Huawei OceanStor 9000 is used in this scenario, which node type should be recommended?

A. P12 node

B. P24 node

C. P36 node

D. P72 node

E. C36 node

Which of the following statements about InfoTier node pools in Huawei OceanStor 9000 are true? (Choose all that apply.)

A. All nodes in a node pool must be of the same type.

B. If an OPS-intensive application scenario, it is recommended that node pools consist of P nodes.

C. A node pool that consists of P nodes must contain a minimum of three nodes.

Which type of log is not supported by FusionStorage?

A. Security log

B. System log

C. Monitoring log

D. Operation log

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

A. Different data protection levels can be set different directories and files.

B. Data written to an OceanStor 9000 is divided into chunks at a size of 4GB.

C. The erasure code algorithm calculates M parity chunks for every N consecutive chunks.

D. The utilization rate of storage space is about N/(N+M), and reliability is determined by M, where a larger value of M results in higher reliability.

Which are big data's characteristics defined by IDC? (Choose all that apply.)

A. Volume

B. Variety

C. Value

D. Velocity

Huawei OceanStor 9000 is a storage platform that suits the characteristics of big data. The platform employs the scale-out architecture and uses hardware that adopts the general-purpose z86 architecture.

A. True

B. False