Huawei Huawei Certifications H13-622 Questions & Answers

• Question 121:

  What method is used by the OceanStor 9000 object storage service (compatible with Amazon S3) to store and search data?

  A. Directory tree

  B. DHT

  C. URL

  D. K-d tree

  Correct Answer: C

• Question 122:

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

  A. Huawei OceanStor 9000 stores metadata in mirrors for redundancy, and uses the COW technique to ensure data reliability.

  B. The InfoStamper feature provides file-level snapshots.

  C. The InfoStamper feature employs the ROW technique.

  D. The advantage of ROW lies in the mirror impact on system performance.

  Correct Answer: B

• Question 123:

  Which of the following is not the OceanStor 9000's characteristics?

  A. The OceanStor 9000 adopts OceanStor DFS, Huawei-developed distributed file system, to store massive unstructured data and supports global namespace.

  B. The OceanStor 9000 provides object storage service compatible with Amazon Simple Storage Service (S3) APIs and OpenStack Swift APIs.

  C. The OceanStor 9000 supports interconnection with Fusioninsight Hadoop or Cloudera Hadoop which are developed from the open-source Hadoop components, helping users easily build an enterprise big data analyses platform.

  D. The OceanStor 9000 adopts distributed metadata management and supports linear expansion from three to 4000 nodes.

  Correct Answer: D

• Question 124:

  Which of the following statements about metadata on Huawei OceanStor 9000 is false?

  A. Huawei OceanStor 9000 stores metadata in mirrors.

  B. Metadata on each node is a complete and independent copy.

  C. Mirror storage aims to improve metadata security.

  D. Mirroring does not increase the metadata access rate.

  Correct Answer: D

• Question 125:

  Which authentication modes are supported by the NFS service of Huawei OceanStor 9000? (Choose all that apply.)

  A. AD domain authentication

  B. LDAP domain authentication

  C. Local authentication

  D. Global authentication

  E. NIS authentication

  Correct Answer: BE

• Question 126:

  An OceanStor 9000 must be equipped with a minimum of three nodes that can vary in types.

  A. True

  B. False

  Correct Answer: B

• Question 127:

  Which authentication modes are not supported by the CIFS sharing function of Huawei OceanStor 9000? (Choose all that apply.)

  A. AD domain authentication

  B. DAP domain authentication

  C. Local authentication

  D. Global authentication

  E. NIS authentication

  Correct Answer: BE

• Question 128:

  Which of the following statements about the cloud storage system are correct? (Choose all that apply.)

  A. Huawei cloud storage system can only provide storage services for Huawei cloud platform and the users of the platform.

  B. Huawei cloud storage system can provide storage services for users on the VMware cloud platform.

  C. The OceanStor 9000 storage system will become a part of the cloud storage system.

  D. The OceanStor 9000 storage system surpasses the cloud storage system in scalability.

  Correct Answer: BC

• Question 129:

  A customer purchases nine OceanStor 9000 storage nodes. During the deployment planning, the customer requires that data integrity be not affected if any three disks in a storage node are faulty, and the overall storage space utilization be not lower than 80%.

  Which of the following is the most proper redundancy ratio?

  A. 8+1

  B. 6+3

  C. 6+3: 1

  D. 16 +3: 1

  Correct Answer: D

• Question 130:

  I which scenario, Huawei OceanStor 9000 does not start load balancing?

  A. Nodes are added.

  B. Disks are added.

  C. A disk goes offline three times within 10 minutes.

  D. A disk is about to fail.

  Correct Answer: C