Last Updated on September 23, 2021 by Admin 2

H13-622 : Huawei Certified Network Professional- Constructing Big Data Solution​ : Part 02

  1. Which of the following statements about Huawei OceanStor 9000 are true? (Choose all that apply.)

    • The MDS service manages file system metadata.
    • The DS service stores file data but not metadata.
    • The CMS service manages physical nodes in a cluster.
    • Some nodes provide the MDS service and some nodes provide the DS service.
  2. Scale-out is a horizontal expansion architecture that addresses the needs and challenges caused by rapid data growth and complex data changes. The scale-out architecture features distributed processing, online expansion, data sharing, and clustering.

    • True
    • False
  3. Multiple users access a multimedia VOD application at different bit rates. Which prefetch policy should be selected for the LUNs on the background N8500 clustered NAS storage system?

    • No prefetch
    • Constant prefetch
    • Intelligent prefetch
    • Variable prefetch
  4. You can check VCS cluster logs by viewing the Engine_A.log file in the /var/VRTSvcs/log directory on an N8500 storage system.

    • True
    • False
  5. A 2-node N8500 clustered NAS engine is a 4 U enclosure. The heartbeat links between the two nodes are set up based on the internal PCIe channels.

    • True
    • False
  6. Which command is used to check whether a file system is mounted using the support account for N8500 V200R001?

    • cfsmntadm display
    • cfsmountadm display
    • cfsmntadm show
    • cfsmountadm show
  7. In an N8500 clustered NAS system, the engine enclosures exchange cluster control information over a Fibre Channel heartbeat network.

    • True
    • False
  8. In an N8500 system, if an engine node is faulty and the other components are in the normal state, the consequences do not include which of the following?

    • The N8500 cannot be managed.
    • LUNs on the storage units become unavailable.
    • Service performance deteriorates.
    • The NFS file sharing service becomes abnormal.
  9. Which of the following are possible challenges facing massive data management? (Select two.)

    • How to implement quick data searches for higher retrieval efficiency
    • How to ensure data authenticity and prevent data cheating
    • How to implement PB-level storage of various data
    • How to save storage resources by reducing the data amount
  10. Which are the possible causes for file read/write performance decrease? (Select three)

    • A slow disk or bad sector exists,
    • The Fibre Channel port has a high bit error rate.
    • The LUN has been set to write back.
    • The prefetch policy does not apply to service data changes.
  11. If the service disk in slot 35 on a C node of the OceanStor 9000 is faulty, you are supposed to find this disk at the front panel of the C node and then replace it.

    • True
    • False
  12. Before installing software for an OceanStor 9000 storage system, you must prepare required tools, cables, and software packages. Which of the following statements about this preparation is incorrect?

    • The SSH client software is required for remote access.
    • An FTP upload tool is required for uploading installation packages to storage nodes.
    • The OceanStor 9000 storage system software is required, which contains the OceanStor SystemReporter suite.
    • A network cable is required for connecting the management PC to the OceanStor 9000 management network port.
  13. Which of the following statements about the configuration of the file system snapshot feature provided by an N8500 clustered NAS system are incorrect? (Select two)

    • A file system snapshot can be created manually or automatically.
    • The maximum number of snapshots created for a file system is 256.
    • A snapshot that is automatically created is in online state by default.
    • A snapshot can be automatically removed by the system.
  14. In an N8500 clustered NAS system, at most how many 1 Gbit/s service ports can a single clustered NAS engine node provide?

    • 4
    • 8
    • 12
    • 16
  15. In Huawei OceanStor 9000, a file pool is a collection of files that have specific characteristics. A file pool policy defines rules for storing a file pool in a node pool.

    • True
    • False
  16. Which of the following statements about the CIFS share are correct? (Select two)

    • CIFS normal share enables a directory to be accessed by all users.
    • CIFS homedir share enables a directory to be accessed by all users.
    • In Normal mode, a client can access a share through only one VIP.
    • Compared with the Normal mode, the Cluster mode provides higher data reliability but lower performance.
  17. An N8500 clustered NAS engine can be connected to a SAN storage array over a Fibre Channel network and a SAS network concurrently.

    • True
    • False
  18. In the IB networking solution of the OceanStor 9000, which of the following statements about the IP address planning of the front-end service network is correct?

    • Two static IP addresses on the front-end service network must be planned for each node.
    • Four dynamic IP addresses on the front-end service network must be allocated to each node for the IP address pool used by the InfoLink function.
    • One InfoLink DNS IP address on the front-end service network must be planned.
    • One floating IP address on the front-end service network must be planned for each node.
  19. Which of the following statements about the N8500 configuration prerequisites are correct? (Select three)

    • The heartbeat network ports of the clustered NAS engine are correctly connected to the heartbeat network.
    • The service network ports of the clustered NAS engine are not connected to the customer’s service network before they are configured.
    • The clustered NAS engine is correctly powered on and the statuses of the indicators are normal.
    • Hardware installation and cable connection of the clustered NAS engine are complete.
  20. Which of the following statements about the CIFS protocol are true? (Choose all that apply.)

    • CIFS transmits data based on TCP.
    • CIFS transmits data based on UDP.
    • CIFS is a file sharing protocol used in Linux.
    • CIFS is a file sharing protocol used in Windows.