The following offin Kafka messagesWhich one of the speed transmission methods is still correct?

• A.point-to-pointinformation systemmedium, cancanhave multiple consumptionsat the same timeremovefeedata, becauseThis does not guarantee the order in which data is processed.
• B.In a point-to-point messaging system, when a messagefeeByremovefeeteamone of the columnsdataAfter that, thedata rulefromdelete from message queue
• C.Postingonesubscriptioninformationsystem, the sameNumber of barsData can be consumed by multiple consumers. data isConsumptionnot laterdelete immediately
• D.Distributed Messaginghand overThere are two mainwantofmessage passing pattern,peer to peertransferpattern, haircloth-subscription model

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What is the module used to manage the active and standby status of the Loader Server process in Loader?

• A.HA Manager
• B.Resource Manager
• C.Job Scheduler
• D.Job Manager

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Which operations in Hive can be merged?

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

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The default snapshot method of Redis is AOF.

• A.False
• B.True

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What is the default resource scheduler for queues in YARN?

• A.FIFO scheduler
• B.Capacity scheduler
• C.Fair scheduler
• D.None of the above is correct

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