Which of the following are the key features of the HDFS architecture? (Multiple choice)

• A.Metadata persistence mechanism
• B.Multi-mode access mechanism
• C.HA high reliability
• D.Robust mechanism

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What is the physical storage unit of Region in HBase?

• A.Row
• B.Column
• C.Region
• D.ColumnFamily

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

• A.False
• B.True

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Fusioninsight Manger externally supports REST interface, SNMP interface, and SYSLOG interface.

• A.True
• B.False

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In the WebHCat architecture, which of the following operations can users perform through the secure HTTPS protocol?

• A.All the above are correct
• B.Run Hive HQL tasks
• C.Perform Hive DDL operations
• D.Run MapReduce tasks

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