Huawei Certified Network Professional - Constructing Data Protection System (HCNP-Storage-CDPS) (H13-623) Free Practice Test

Question 1

Which of the following statements about client deduplication is false?

A. Only new data blocks need to be transmitted to the target end. Information related to old data blocks does not need to be transmitted.

B. At the source end, hash comparison and deduplication are implemented for the data blocks to be transmitted to the target end.

C. Compared with media deduplication, client deduplication can save the transmission bandwidth.

D. Resources at the source end are consumed to implement deduplication.

Correct Answer: A

Question 2

Physical tape libraries have the following disadvantages: The mechanical failure rate is relatively high, and tapes are vulnerable to the adverse impact of the environment (temperature, humidity, and dusts).

A. FALSE

B. TRUE

Correct Answer: B

Question 3

An enterprise application was backed up as follows: On February 1 (Febl), full backup of all files and directories was implemented. On February 2 (Feb2), 3 (Feb3), and 4 (Feb4), cumulative incremental backup was implemented. On February 5, service disks failed. If the enterprise wants to restore the application to the state preserved on February 4, which backup files are needed?

A. Febl+Feb2+Feb3+Feb4

B. Febl+Feb3

C. Febl+Feb4

D. Febl+Feb2

Correct Answer: C

Question 4

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

A. The Huawei OceanStor V3 series and the heterogeneous storage arrays all can directly connect to hosts.

B. The heterogeneous storage arrays cannot directly connect to hosts.

C. The heterogeneous storage arrays can directly connect to hosts.

D. Only the Huawei OceanStor V3 series can directly connect to hosts.

Correct Answer: B,D

Question 5

Among the data replication technologies used for disaster recovery, host-layer data replication features good compatibility with servers and storage devices.

A. FALSE

B. TRUE

Correct Answer: B

Question 6

Which of the following statements about asynchronous remote replication implemented by OceanStor V3 storage systems is false?

A. The primary storage system returns a write success response to the host immediately after data is successfully written to the primary LUN.

B. After an asynchronous remote replication relationship is established, an initial synchronization is implemented.

C. When a secondary LUN is added to an asynchronous remote replication, snapshots of the primary and secondary LUNs are automatically created and activated.

Correct Answer: C

Question 7

Which of the following statements is correct about the Huawei Network-Layer Remote Replication Solution?
1. Network-layer remote replication uses network devices to mask the heterogeneous nature of disk arrays at the primary and secondary centers so that remote replication can be implemented between the disk arrays.
2. In the production center, data is written to both the log volume and production volume, but in the DR center, data is just written to the production volume.

A. Statement 1 is false. Statement 2 is false.

B. Statement 1 is false. Statement 2 is true.

C. Statement 1 is true. Statement 2 is true.

D. Statement 1 is true. Statement 2 is false.

Correct Answer: C

Question 8

In the HyperMetro active-active data center solution, data centers A and B are deployed. If the storage array in data center A fails, which of the following statements are true? (Multiple Choice)

A. UltraPath automatically disables all paths to data center A and forwards all I/Os to data center B.

B. If the storage array in data center A takes the initiative to power off, a command is sent to the storage array in data center B, asking the storage array to take over services.

C. After the storage array in data center A is recovered, the active-active relationship is automatically restored. Based on the differential bitmap, incremental data is automatically synchronized without affecting upper-layer applications.

D. The storage array in data center B uses a differential bitmap to record newly received I/Os.

Correct Answer: A,B,C,D

Question 9

HyperMetro uses cross-site real-time data mirroring to ensure real-time data synchronization between the storage arrays at two sites. Upon receiving a write I/O, the storage array in a data center generates a write log.
In the log, only address information is recorded, but data is not recorded. To ensure performance, log information is recorded in memory space capable of power failure protection.

A. FALSE

B. TRUE

Correct Answer: B

Question 10

Storage-layer data replication supports data replication across heterogeneous storage arrays.

A. FALSE

B. TRUE

Correct Answer: B

Question 11

File-level deduplication is also known as single instance storage (SIS). Based on indexes, file-level deduplication checks and compares the attributes of a file that needs to be stored with those of files that have been stored. If the file has not been stored, file-level deduplication stores the file and updates indexes.
Otherwise, file-level deduplication only stores the pointers that point to the existing file.

A. FALSE

B. TRUE

Correct Answer: B

Question 12

What is the sequence for installing CommServe?
1. Start installation.
2. Select installation items.
3. Configure a DR path.
4. Configure an administrator account.
5. Install a database.
6. Select and configure firewalls.
7. Install .NET framework.

A. 1>2>3>4>7>6>5

B. 1>2>7>6>5>3>4

C. 1>2>4>3>5>7>6

D. 1>2>7>3>5>6>4

Correct Answer: B

Question 13

In the Huawei Active-Active DR Solution, an application's peak write bandwidth is 10 MB/s, average write bandwidth is 200 KB/s, average write I/O size is 4 KB, and the bandwidth usage is 70%. In this scenario, how large bandwidth is required for deploying asynchronous remote replication for the application?

A. 114.3 Mbit/s

B. 2.23 MB/s

C. 200KB/S

D. 10 MB/s

Correct Answer: B

Question 14

Which of the following statements about synchronous remote replication of the Huawei Active-Passive DR Solution is correct?

A. The link distance between the two data centers cannot be longer than 100 km, and the round-trip transfer latency cannot be longer than 4 ms.

B. The link distance between the two data centers cannot be longer than 150 km, and the round-trip transfer latency cannot be longer than 2 ms.

C. The link distance between the two data centers cannot be longer than 200 km, and the round-trip transfer latency cannot be longer than 2 ms.

D. The link distance between the two data centers cannot be longer than 300 km, and the round-trip transfer latency cannot be longer than 8 ms.

Correct Answer: C

Question 15

The hard ware-based snapshot of the OceanStor Backup Solution supports storage devices of al storage vendors.

A. FALSE

B. TRUE

Correct Answer: A

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Huawei Certified Network Professional - Constructing Data Protection System (HCNP-Storage-CDPS) (H13-623) Free Practice Test