Oozieofworkflow.xmlfile is the workflow configuration file

• A.False
• B.True

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which is notflumeofchannelTypes of?

• A.HDFS Channel
• B.File Channel
• C.Memory Channel
• D.JDB, C Channel

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aboutHiveThe basic operation of building a table, the description is correct?
You need to specify when creating an external tableexternalkeywords.

• A.Once the table is created, no new columns can be added.
• B.Once the table is created, the table name cannot be changed.
• C.Once the table is created, the column names cannot be changed.

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FusionInsight HDin the platform,HBaseSecondary indexes are not currently supported.

• A.True
• B.False

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Suppose there is an application with10Tables, each table has tens of millions of records, and the number of fields is about20indivual. now useRedisto cache this10The data of a table, the design of its data structure, which of the following is the best design?

• A.usem3structure, each row record of each table uses oneKEY,,aueAll records for a row in the table. The value after the field is concatenated.
• B.usehashTable structure, each row record of each table uses onehashKEY, hashKEYofebCorrespondence table
• C.usehashstructure, and a table uses ahashKEY, a row in the table records forhash keyone of indivualed.
• D.record fields, and designKEYEach table adds a different prefix to distinguish it.
  useringstructure, each field of each row record of each table uses oneKEY.

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