The Fusionlnsight HD cluster contains many kinds of services, and each service consists of thousands of roles. Which of the following are the roles of the service?( )

• A.Hbase
• B.DataNode
• C.NameNode
• D.HDFS

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When creating a Loader job, in which of the following steps can the number of Maps be set?

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Multiple channels can be configured in the properties.protertises configuration file of Flumef to transmit data

• A.True
• B.False

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Flink is a unified computing framework that combines batch processing and stream processing. Its core is a stream data processing engine for data distribution and parallel computing.

• A.False
• B.True

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NodeManager memory andCThe number of PUs is configured by which of the following options?

• A.YARN.scheduler.capacity.root.QueueA. maximum-capacity
• B.YARN.modemanager.resource.memory-mb
• C.YARN.nodemanager.resource.cpu-vcore
• D.YARN.nodemanager.vmem-pmom-ratio

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