FusionInsightHDin, aboutHivepartition (partition) function, which is wrong as described below?

• A.Using partitions can reduce the data scan range of some queries, thereby improving query efficiency
• B.Partition fields can be used aswherecondition of the sentence
• C.There can only be one partition field, and multi-level partitions cannot be created
• D.Partition fields are defined when the table is created

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FusionInsight HDin, aboutOoziejob management for suspended jobs
Which of the following operations? (multiple choice)

• A.mouthkill
• B.mouthrun
• C.mouthsubmit
• D.mouthresume(wake)

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Rcboft0system, abouteWhich of the provided file formats is not in column format?

• A.Parquetcolumn store
• B.RCFileRow-column storage
• C.TextFile
• D.ORC(High-performance column store)

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FusionInsight HDin, aboutOoze, which of the following operations can be performed on a suspended job?
(many
select)

• A.kill
• B.submit
• C.resume
• D.run

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When the cluster is normal,RedisClient initiates oncegetCall, the client has () times of message interaction with the server?

• A.1
• B.2
• C.4
• D.3

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