Free Access Huawei.H13-711_V3.0-ENU.v2022-01-24.q177 Practice Test (Page 31)

In Hadoop, if yarn.scheduler.capacity.root.QueueA.minimum-user-limit-percent is set to 50, which of the following is wrong?

A.A user submits a task can use 100% of QueueA's resources

B.If there are already 2 user tasks running in QueueA, then the task submitted by the third user needs to wait for the release of resources

C.QueueA must ensure that each user gets at least 50% of the resources

D.Each user in QueueA can only get up to 50% of the resources

Which of the following functions can be achieved by the Kafka Cluster Mirroring tool?

A.Kafka single cluster data backup

B.Kafka cross-cluster data synchronization method

C.None of the above is correct

D.Kafka single cluster data recovery

Which of the following scenarios in HBase will trigger the Flush operation? (Multiple choice)

A.HBase refreshes Memstore regularly, the default period is 1 hour

B.The total size of MemStore in the Region has reached the preset Flush Size threshold

C.The ratio of the total memory occupied by MemStore to the total memory of RegionServer exceeds the preset threshold size

D.When the number of files in WALs reaches the threshold

Which one of the following commands can be used to clear the data of all databases under the Redis instance?

A.dropdb

B.flushdb

C.dropall

D.flushall

The processing logic of the topology is in the bolt.

A.False

B.True

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