Huawei H13-629-ENU 問題集

質問 1：
Application of disaster drills in Huawei Host and Backup disaster recovery solution, which is wrong?
A. drills in the production process can stop the end of normal business, one-click run fast moving business to disaster.
B. disaster drills will automatically stop production applications and on the Device Manager remove the production host to the storage of production map.
C. application disaster drills execution is completed, replication relationship will split, disaster recovery side will take over the production system to run the business.
D. Application of disaster drills mainly switch production business systems to isaster recovery side, exercise disaster environment is properly available.
正解：B

質問 2：
The following about Huawei OceanStor V3 series storage array synchronous remote replication and asynchronous remote replication, which is wrong? (Multiple choice)
A. synchronous remote replication and asynchronous remote replication are use the snapshot
B. synchronous remote replication and asynchronous remote replication are use bitmap progress
C. remote replication consistency group one task failure will not affect other tasks in the group
D. synchronous remote replication use difference log, asynchronous remote replication use difference bitmap
正解：A,B,C

質問 3：
Under the same operating system environment, what is the recovery order of oracle database through RMAN?
A. pfile, controlfile, datafile
B. pfile, datafile, controlfile
C. controlfile, datafile, pfile
D. datafile, pfile, controlfile
正解：A

質問 4：
In Huawei OceanStor 9000, which technology does the application support to improve performance? (Multiple choice)
A. Support SMB3 Multichannel function and take advantage of multi-core CPU and bandwidth resources within the client, significantly improving performance.
B. When there are multiple objects write request at the same time in a hard drive, support to merge for continuous large IO, significantly improve system performance.
C. support 10GE and PCIE network, through the inter-node high-speed Internet, reduce delays within the system to provide superior performance.
D. When the internal file copy, without going through the client, complete directly at high speed inside the system.
正解：A,B,D

質問 5：
If the two sites being migrated are far apart and network loss has a large impact on the migration rate, do not use a direct cross-site migration scenario.
A. FALSE
B. TRUE
正解：B

質問 6：
Disaster drills, switch the service to the disaster recovery, in order to prove the reliability of disaster recovery system, we need to adopt simulation testing means test validate business as much as possible.
A. FALSE
B. TRUE
正解：A

質問 7：
An application's peak value write bandwidth to be 10MB/s; the average write bandwidth is 200KB/s; the average write IO size is 4KB(bandwidth utilization is 70%); If you need to use the OceanStor V3 storage array for data disaster recovery and configure it in asynchronous replication mode, then what is the minimum network bandwidth?
A. 3.2Mbps
B. 128Mbps
C. 18Mbps
D. 114Mbps
正解：A

質問 8：
In the scenario of database protection, when the slave uses the virtual snapshot to verify the consistency of LUN data on the production end and the disaster recovery end, the database of the disaster recovery-end LUN can't be started normally. What are the possible causes are as follows?
A. Disaster recovery data stored in the Cache, not yet written to the hard disk.
B. When creating a snapshot on the disaster recovery end LUN The production end is copying data to the disaster recovery end.
C. After a snapshot of the LUN of the redundancy site is created, the snapshot is not activated at the same time.
D. The production end and disaster recovery end adopt the redundancy disaster recovery solution of incremental LUN copies. The incremental data is abnormally interrupted during the synchronization process and has not been recovered.
正解：B,C,D