Regarding the management operation of Fusionlnsight Manager to the service, which of the following is incorrect?

• A.Can be set to hide or show uncommon services
• B.The service can be started, stopped, and restarted
• C.Services can be added and uninstalled
• D.You can view the current status of the service

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Which of the following descriptions about the features of Zookeeper is wrong?

• A.Updates sent by the client are applied in the order in which they were sent
• B.A message update can only succeed or fail. There is no intermediate state
• C.A message is to be received by more than half-respected servers,he will be able to successfully write to disk
• D.The number of Zookeeper nodes must be odd

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Which operations in Hive can be merged?

• A.GROUP BY
• B.SELECT
• C.UNION ALL
• D.JOIN

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In the flume architecture, a Source can be connected to multiple channels.

• A.False
• B.True

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Which operations in Hive can be merged? (Multiple choice)

• A.GROUP BY
• B.UNION ALL
• C.SELECT
• D.JOIN

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