HDFSIt adopts a "write once, read many" file access model. Therefore, it is recommended that a document After creating and writing the profit, do not modify it again.

• A.False
• B.True

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Fusionlnsigt HD which of the following components can be used for data collection? (multiple choice)

• A.Loader
• B.HBase
• C.MapReduce
• D.Flume

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Fusioninsight HDin useStreamingofA, CKWhich of the following statements is true of? (multiple choice)

• A.enabledAckerLater,StreamingIt will identify the failure to sendTupleAnd automatically resend, no need for human intervention pre.
• B.The application needs to be inspoutoffail() interface method to implement message resend logic.
• C.AckerThe message that will identify the processing timeout or processing failure isfail.
• D.fromspoutstarted, formedTupleFailure of any link in the tree will mark the entire tree as failed.

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existHBaseWhich of the following interfaces or classes does not need to be involved in the implementation of business logic for writing data?

• A.Puttist
• B.Put
• C.HTable
• D.HBaseAdmin

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FusionInsight HDofStreamingforZooKeeperweak dependency, even ifZooKeeperFault StreamingServices can also be provided as normal.

• A.False
• B.True

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