Regarding Redis cluster topology information, which of the following descriptions is correct?

• A.The client caches the cluster topology information
• B.Both
• C.The server caches the cluster topology information
• D.Neither

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In the V100R002C60 version of the FusionInsight HD system, Hive only supports query services based on the MapReduce engine, and does not support query services based on the Spark engine.

• A.False
• B.True

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In FusionInsight HD, regarding the partition function of Hive, what is wrong in the following description?

• A.The partition field should be defined when the table is created
• B.The partition field can be used as the condition of the where clause
• C.Using partitions can reduce the data scan range of certain queries, thereby improving query efficiency
• D.There can only be one partition field, and multi-level partitions cannot be created

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In FusionInsight HD, Oozie needs to upload the configuration files and jar packages that the job relies on to HDFS before submitting the job

• A.False
• B.True

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In FusionInsight HD, regarding Oozie's job operation commands, which of the following descriptions are correct? (multiple choice)

• A.The start command can make the job in the PREP state become RUNNING
• B.The submit command can change the status of the job to PREP
• C.The kill command can be used on jobs in PREP/SUSPEND/RUNNING status
• D.The run command can make the job status RUNNING

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