H13-622 : Huawei Certified Network Professional- Constructing Big Data Solution​ : Part 10

H13-622 : Huawei Certified Network Professional- Constructing Big Data Solution​ : Part 10

1. Based on full interconnection of data channels and communication channels, a clustered NAS system employs cluster volume management to manage storage space globally. All nodes in the cluster can access the same storage space using the same volume device name, ensuring block device access consistency.

   • TRUE
   • FALSE

2. Which of the following statements about multipart upload of object storage service are connect? (Choose all that apply.)

   • The object storage service (compatible with Amazon S3 APIs) limits the size of a single uploaded object to 5 GB. 
   • All uploaded parts are combined into one or more objects. The size of a combined object is not greater than 5 TB.
   • For a large object, or the object that needs to be uploaded for several times, you can use multipart upload to complete the upload. 
   • After initiating a multipart upload task, you can cancel it.

3. Users of object storage service (compatible with OpenStack APIs) are managed and authenticated by the Keystone server. Registering, creating, and deleting an account must also be performed on the Keystone server.

   • True
   • False

4. The OceanStor 9000 allows the clients using different protocols to access the same directory or file simultaneously. For example, Windows clients (using the CIFS protocol), Linux clients (using the NFS protocol), and Mac OS X clients (using the CIFS protocol or NFS protocol).

   • TRUE
   • FALSE

5. In an OceanStor 9000, if the protection level is set to 4+2, three mirrors of metadata will be generated.

   • True
   • False

6. Administrators can use DeviceManager to quickly complete the initial configuration of an OceanStor 9000, including: (Choose all hat apply.)

   • Setting an external DNS server.
   • Changing the password of the super administrator.
   • Setting the time zone and NTP for the system.
   • Setting InfoEqualizer (client connection load balancing).
   • Setting alarm notification by email and SMS.

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

   • Nodes are added.
   • Disks are added.
   • A disk goes offline three times within 10 minutes.
   • A disk is about to fail.

8. 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?

   • 8+1
   • 6+3
   • 6+3: 1
   • 16 +3: 1

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

   • Huawei cloud storage system can only provide storage services for Huawei cloud platform and the users of the platform.
   • Huawei cloud storage system can provide storage services for users on the VMware cloud platform.
   • The OceanStor 9000 storage system will become a part of the cloud storage system.
   • The OceanStor 9000 storage system surpasses the cloud storage system in scalability.

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

    • AD domain authentication
    • DAP domain authentication
    • Local authentication
    • Global authentication
    • NIS authentication

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

    • True
    • False

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

    • AD domain authentication
    • LDAP domain authentication
    • Local authentication
    • Global authentication
    • NIS authentication

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

    • Huawei OceanStor 9000 stores metadata in mirrors.
    • Metadata on each node is a complete and independent copy.
    • Mirror storage aims to improve metadata security.
    • Mirroring does not increase the metadata access rate.

14. Which of the following is not the OceanStor 9000’s characteristics?

    • The OceanStor 9000 adopts OceanStor DFS, Huawei-developed distributed file system, to store massive unstructured data and supports global namespace.
    • The OceanStor 9000 provides object storage service compatible with Amazon Simple Storage Service (S3) APIs and OpenStack Swift APIs.
    • 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.
    • The OceanStor 9000 adopts distributed metadata management and supports linear expansion from three to 4000 nodes.

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

    • Huawei OceanStor 9000 stores metadata in mirrors for redundancy, and uses the COW technique to ensure data reliability.
    • The InfoStamper feature provides file-level snapshots.
    • The InfoStamper feature employs the ROW technique.
    • The advantage of ROW lies in the mirror impact on system performance.

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

    • Directory tree
    • DHT
    • URL
    • K-d tree

17. Which of the following challenges is not faced by big data analysis?

    • The traditional IT architecture cannot provide enough storage space for growing data.
    • The traditional analysis methods are not suitable for big data.
    • Massive data imposes higher requirements on fast, efficient, and real-time data analysis.
    • The ability to provide a one-stop solution is required.

18. Which of the following statements about InfoRevive is correct?

    • InfoRevive ensures continuous availability of video surveillance services when the number of failed nodes or disks exceeds the upper limit.
    • After the read fault tolerance mode is enabled, if the number of failed nodes or disks exceeds the configured upper limit, all the damaged video file data can be recovered.
    • After the read/write fault tolerance mode is enabled, if the number of failed nodes or disks exceeds the configured upper limit, a specific proportion of damaged video file data can be recovered and data can still be written to the video file.
    • InfoRevive is applicable not only to video surveillance scenario, but also to TV stations and other media and assets industries.

19. To access OceanStor SystemReporter, enter https://IP:8088 in the address box of a web browser, where IP indicates the service management IP address of an OceanStor 9000.

    • True
    • False

20. Which are customer benefits provided by the InfoTier feature of Huawei OceanStor 9000? (Choose all that apply.)

    • The response to hotspot data is faster, improving the storage performance.
    • The cost advantages of different storage media are brought into full play, reducing deployment and maintenance costs.
    • The storage performance is improved, and data is intelligently managed.
    • Based on the mapping between file attributes and storage devices, files are automatically migrated, simplifying management and reducing management costs.