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Huawei HCIA-Big Data V2.0 Sample Questions:

1. In the .YARN service, if you want to set the capacity of the queue QueueA to 30%, which parameter should be configured?

A) yarn.scheduler.capacity.rootQueueA.st are
B) yam.scheduler.capacity.root.QueueA.capacity
C) yarn.scheduler.capacityJootQueueA.user-limit-factor
D) yarn.scheduler.capacity.root.QueueA.minimum-user-limit-percent

2. The Kerberos system is designed with client / server structure and DES encryption technology to enable mutual authentication. Both the client and the server can perform identity authentication for each other.

A) True
B) False

3. Is the Loader job description in Fusioninsight HD correct?

A) After Loader submits the job to Yam for execution, if a Mappe task fails to execute, it can retry by itself.
B) After Loader submits the job to Yam for execution, if the Loader service is abnormal at this time, the job execution fails.
C) After Loader submits a job to Yarn for execution, it cannot submit other jobs until the job is completed.
D) After the Loader job fails to execute, garbage data will be generated, which requires the user to remove the residue manually.

4. One of the following descriptions about the HDFS federation of the Hadoop distributed file system is correct?
(Multiple choices)

A) A Namespace uses a block pool to manage data blocks
B) Support NameNode / Jamespace horizontal expansion
C) One namespace can use multiple block pools to manage data blocks
D) The disk space of each block pool is physically shared and the logical space is isolated

5. Among the following options, is the exact description of the role of the standby NameNode in Huawei Fusioninsight HD system? "Multiple choices"

A) Help the master NameNode merge the editor's log and reduce the startup time of the master NameNode
B) The standby NameNode should be deployed to a node with the master NameNode
C) Prepare NameNode has no memory requirements
D) Hot standby for the main NameNode

Solutions: