Question 1

In Huawei flash storage, an administrator is a built-in role that can manage users, upgrade the system, change the system time, power off the device, and restart the device.

Options :

A : TRUE

B : FALSE

Answer: A

Question 2

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.

Options :

A : TRUE

B : FALSE

Answer: A

Question 3

A financial customer has purchased a Huawei OceanStor Dorado series storage system for service deployment. To ensure service data reliability, an engineer configures the HyperClone feature on the storage system. Which of the following statements about this feature are false?

Options :

A :

A source LUN and a target LUN form a HyperClone pair, and a source LUN cannot form multiple HyperClone pairs with different target LUNs.

B :

This feature provides a full copy of the source LUN's data at the synchronization start time. Hosts can read and write the target LUN immediately, without waiting for the copy process to complete.

C :

This feature synchronizes data from the source LUN to the target LUN and can also restore data from the target LUN to the source LUN.

D :

There are significant differences between clone blocks and clone file systems. The former is implemented based on the redirect-on-write (ROW) technology, while the latter is implemented based on the copy-on-write (COW) technology.

Answer: A,B

Question 4

When delivering a Huawei OceanStor Pacific storage project, a Huawei engineer vigorously promoted the SmartEncryption feature of scale-out storage to customers. Which of the following statements is false about this feature?

Options :

A :

When the data is read using the DPC or NFS protocol, the SED obtains the identity authentication key from the key management server, reads and decrypts the ciphertext data, and then returns the plaintext data to the protocol layer. The protocol layer returns the plaintext data to client applications.

B :

This feature supports encrypted data write using NFS, CIFS, HDFS, or S3. Data is decrypted and read using NFS, CIFS, HDFS, or S3.

C : The file service client can write plaintext data through the NFS/CIFS/DPC protocol.

D :

Huawei OceanStor Pacific series scale-out storage supports disk encryption. All data delivered by services is stored on self-encrypting disks (SEDs).

Answer: C

Question 5

When demarcating a performance issue of Huawei flash storage, engineer A finds that the latency observed on the compute side is much longer than that on the storage side. This indicates that the issue most possibly occurred on the storage, for example, the disk performance upper limit has been reached.

Options :

A : TRUE

B : FALSE

Answer: B

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