H13-622 : Huawei Certified Network Professional- Constructing Big Data Solution​ : Part 07

H13-622 : Huawei Certified Network Professional- Constructing Big Data Solution​ : Part 07

1. In an N8500, metadata is classified into many types. Different nodes process different types of metadata. Metadata is classified into which of the following types? (Select three)

   • Super block
   • Log area
   • Allocation unit
   • Folder

2. The figure shows the file pool policy configured for an OceanStor 9000 storage system. The monitoring and migration time is 2: 00-4: 00 a.m. every day. At 9: 00 a.m. on Monday, file A was created in the \example\test directory. By 10: 00 a.m., file A had been read and written for 15 times and the file size became 150 MB. After that, file A was no longer accessed. At 9: 00 a.m. on Tuesday, in which tier is file A stored?

   

   • Small-data tier
   • High-performance tier
   • High-bandwidth tier

3. Which of the following file system configurations are correct for the N8500 clustered NAS storage systems? (Select two.)

   • Set not more than 16 columns in a stripe file system to prevent serious data discretization.
   • Set a block size to 8192 when the file system size is larger than 1TB.
   • Set the number of columns consistent with that of RAID groups for a stripe file system
   • You are advised to disable quotas if the number of files exceeds 40 million.

4. An N8500 clustered NAS storage system cannot be logged in to using the master account. Which is the possible cause?

   • The console IP address conflicts with another IP address on the network.
   • The network port corresponding to the console IP address is not connected to a network cable or is in the shutdown state.
   • The user name and password have been changed.
   • A heartbeat link is down.

5. Which of the following are characteristics of big data? (Select three)

   • Huge data volume
   • Authentic and valid data
   • Fast data circulation
   • Various data types

6. An OceanStor 9000 storage system is deployed using the OceanStor Toolkit. Which of the following statements about the settings of the OceanStor Toolkit configuration file are correct? (Select two)

   • The cluster name can be set to 9000cluster.
   • If the InfoLink license has not been purchased, you may skip the InfoLink DNS configuration.
   • The front-end network gateway will serve as the default gateway of all storage nodes after being configured.
   • The data redundancy ratio is the default ratio of all directories on the OceanStor 9000.

7. Which network file sharing protocols are supported by a NAS storage system? (Choose all that apply.)

   • FAT32
   • NTFS
   • NFS
   • CIFS

8. In an N8500 clustered NAS system, which of the following commands are commonly used to query a cluster’s detailed resource information? (Select two.)

   • hares -state
   • hares -display
   • hagrp -dep
   • hagrp -state

9. In the OceanStor 9000, a node pool is a collection of nodes that have the same characteristics such as physical type and access performance, and DST allows a user to divide physical nodes in the same file system into node pools.

   • True
   • False

10. Which of the following can be used to manage secure access to NFS shares? (Select two.)

    • AD
    • NIS
    • LDAP
    • Homedir

11. The three mainstream storage forms are as follows: 1)SAN storage that provides block resources;2)NAS storage that provides file system resources;3) object-based storage (OBS). SAN storage and NAS storage are traditional storage forms. Which of the following statements about the characteristics of the three storage forms are correct? (Select three.)

    • In traditional storage forms, disks are partitioned, file systems record file structures based on a tree relationship, and metadata is used to identify the use of blocks.
    • Objects are the basic units of OBS. Each object is a composite of data and data property sets.
    • In the OBS mechanism, data and metadata are stored and managed in a distributed manner.
    • OBS is typically oriented to structured data applications.

12. In an N8500 clustered NAS system, underlying virtualization is implemented by the VxVM component. The virtual objects managed by the VxVM are VM disks, disk groups, subdisks, and plexes. Which of the following statements is incorrect?

    • A VM disk is controlled by the VxVM and typically located in a disk group. Each VM disk corresponds to at least one physical disk or disk partition.
    • A disk group is a collection of VM disks.
    • A subdisk is the basic unit for the VxVM to allocate disk space. To improve the efficiency of underlying resource use, a subdisk can be a group of inconsecutive disk blocks.
    • A plex consists of one or multiple subdisks on one or multiple physical disks. Each plex contains a duplicate of the data selected in a volume.

13. The license must be purchased for which of the following software features of the OceanStor 9000? (Select three.)

    • WushanFS
    • InfoLink
    • InfoQuota
    • InfoTier

14. If the name of a shared directory is dirtest in an OceanStor 9000 storage system, local users who have permission can access the directory by entering \\*.*.*.*\dirtest, where *,*.*,* must be the front-end service IP address of the node that provides storage space for the dirtest directory.

    • True
    • False

15. Which of the following storage services can the N8500 clustered NAS system that employs the integrated networking mode provide for application servers? (Select three.)

    • CIFS
    • 10 Gbit/s iSCSI SAN
    • SASSAN
    • FCSAN

16. Which of the following statements about the login information of the OceanStor 9000 after its software installation is complete are incorrect?

    • The account and default password for logging in to the OceanStor DeviceManager are admin and Admin @storage respectively.
    • To log in to the OceanStor DeviceManager from Internet Explorer, enter https://xx.xx.xx.xx:8088, where xx.xx.xx.xx is the management IP address of the OceanStor 9000.
    • The default password for the default account root of the Linux operating system running on a storage node is root@storage.
    • To log in to the IPMI of a storage node on Internet Explorer, enter https://xx.xx.xx.xx, where xx.xx.xx.xx is the IP address of the IPMI port on the storage node.

17. The master account is used to enter the CLI mode of N8500 V200R001. Which of the following operations can be performed related to NFS? (Select three.)

    • nfs server show
    • nfs server status
    • nfs server start
    • nfs server stop

18. A customer’s OceanStor 9000 big data storage system uses GE for the front-end network and 10GE for the back-end network. If the OceanStor 9000 is configured with four C nodes, only a basic cabinet is required.

    • True
    • False

19. For one or more Windows clients to access the storage resources on an OceanStor 9000 storage system, the administrator needs to create a directory under the root directory on the specified storage node and authorize the new directory to the target user or user group.

    • True
    • False

20. The OceanStor 9000 can be installed in a Huawei-supplied cabinet only.

    • True
    • False