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HCNP-Storage-HCNP-CBDS (Huawei Certified Network Profession Constructing Big Data Solution
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Which of the following file system configurations are correct for the N8500 clustered NAS storagesystems?(Select 2 answers)
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.
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.
Which of the following are characteristics of big data? (Select 3 answers)
Huge data volume
Authentic and valid data
Fast data circulation
Various data types
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 2 answers)
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.
Which of the following network file sharing protocols are supported by a NAS storage system? (Select 2 answers)
FAT32
NTFS
NFS
CIFS
In an N8500 clustered NAS system, which of the following commands are commonly used to query a cluster's detailed resource information? (Select 2 answers)
hares -state
hares -display
hagrp -dep
hagrp -state
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
Which of the following can be used to manage secure access to NFS shares? (Select 2 answers)
AD
NIS
LDAP
Homedir
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 3 answers)
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.
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.
The license must be purchased for which of the following software features of the OceanStor 9000?(Select 3 answers)
WushanFS
InfoLink
InfoQuota
InfoTier
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
Which of the following storage services can the N8500 clustered NAS system that employs the integrated networking mode provide for application servers? (Select 3 answers)
CIFS
10 Gbit/s iSCSI SAN
SASSAN
FCSAN
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.
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 3 answers)
nfs server show
nfs server status
nfs server start
nfs server stop
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
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
The OceanStor 9000 can be installed in a Huawei-supplied cabinet only.
TRUE
FALSE
The OceanStor 9000 allows users to define file pool polices based on file attributes and I/O frequency. Which of the following statements about file pool polices are correct? (Select 3 answers)
A create policy is used to determine the initial location where a newly created file is to be stored. Such a policy includes the following items:file storage path, file name, and UID/GID.
A relocate policy is used to determine the target location where a file is to be migrated.
A delete policy is used to determine when to delete a file from the system.
A modify policy is used to determine how to modify a file.
Which of the following statements about the intelligent load balancing feature of the OceanStor 9000 are correct? (Select 3 answers)
Performance is balanced among all nodes. Capacity cannot be balanced among all nodes.
Nodes can be divided into zones. An independent load balancing policy and an independent domain name can be configured for each zone.
Load balancing policies can be based on CPU usage, memory usage, bandwidth usage, number of network connections, and/or node capability.
The OceanStor 9000 provides the load balancing service based on round robin, CPU usage, or the number of connections to a node.