Regarding the flow of data in Flume, which of the following descriptions is correct?

• A.(1) Data from channle to source; (2) Sink gets data from source
• B.(1) Data from sink to channle; (2) Source gets data from channel
• C.(1) Data from source to channel; (2) Sink gets data from channel
• D.(1) Data from channle to source; (2) Sink gets data from source

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When the HDFS client writes files to HDFS with N copies, if one of the copies fails to write, all copies will return the write failure.

• A.True
• B.False

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There is a file test.txt in the root directory of the HDFS cluster. Which of the following commands can check the DatNode node information stored in this file?

• A.hdfs fsck /test.txt -list -corruptfileblocks
• B.hdfs fsck /test.txt -files
• C.hdfs fsck /test.txt -locations
• D.hdfs fsck /test.txt -blocks

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In FusionInsight HD, what are the roles that belong to the Streaming service? (multiple choice)

• A.Nimbus
• B.Supervisor
• C.quorumpeer
• D.Broker

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In a FusionInsight HD cluster, Flume does not support writing collected data to which service in the cluster?

• A.HBase
• B.Redis
• C.HDFS
• D.Kafka

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