pass throughHBaseofcreateTableThe method creates a table, what parameters must be passed in?

• A.Table Name
• B.can be empty
• C.table names and columns
• D.Table names and column families

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LoaderIf the job execution fails, the data imported during the running of this job will not be deleted automatically.
must be deleted manually.

• A.True
• B.False

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FusionInsight HDmiddle,StreamingWhich of the following scenarios is applicable? (multiple choice)

• A.Streaming data monitoring
• B.Real-time visit statistics of the website
• C.Offline log analysis
• D.Traffic flow analysis

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existSpark, which of the following statements about broadcast variables is correct? (multiple choice)

• A.mouth broadcast variable in eachTasksave a copy
• B.Port broadcast variables are read-only
• C.port broadcast variable viaSparkContext.broadcast) method to generate
• D.mouth broadcast variable in eachExecutorsave a copy

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forHBase rowkeyThe design principles described below are correct? (multiple choice)

• A.The attribute value with good dispersion is placed inRowkeysecond half
• B.The attribute value with good dispersion is placed inRowkeyfirst half
• C.Attribute values with high port access weights are placed inRowKeyFront
• D.Attribute values with high port access weights are placed inRowkeysecond half

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