Kafka is a distributed message publishing and subscription system. It only forwards messages and does not save messages.

• A.False
• B.True

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Regarding the difference and connection between Spark SQL & Hive, which of the following statements are correct? (Multiple choice)

• A.Spark SQL is compatible with most Hive syntax and functions
• B.Spark SQL cannot use Hive's custom functions
• C.The execution engine of Spark SQL is Spark core, and the default execution engine of Hive is MapReduce
• D.Spark SQL relies on Hive metadata

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In FusionlnsightHD, which of the following components does Flink mainly interact with

• A.HDFS
• B.Yarr
• C.zookeeper
• D.Kafka

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Which nodes are required to communicate with external data sources before and after the Fusioninsight HD Loader job?

• A.Both of the first two are required
• B.Neither of the first two are needed
• C.The node on which the YARN service job is running
• D.Loader service master node

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Which components in FusioninsightHD can Zookeeper provide distributed management support for?

• A.Spark
• B.HBase
• C.Hive
• D.Loader

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