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

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

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Regarding the architecture description of Hive in Fusionlnsight HD, which of the following is incorrect?

• A.At the same time, only one HiveServer is in Active state, and the other is in Standby state
• B.As long as one HiveServer is unavailable, the entire Hive cluster is unavailable
• C.MetaStore is used to provide original data services and depends on DBServer
• D.HiveServer is responsible for accepting client requests, parsing, executing HQL commands and returning query results

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Which of the following statements about the read/write process of the leader node of Zookeeper after receiving the data change request is correct?

• A.write to memory only
• B.Write to disk first, then write to memory
• C.Write to memory first, then write to disk
• D.Simultaneous writes to disk and memory

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Which of the following is incorrect about the BloomFilter feature of HBase?

• A.It can be accurately judged that a piece of data does not exist
• B.Will increase storage consumption
• C.Used to filter data
• D.Used to optimize the performance of random reads

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When the Loader of Fusioninsight HD creates a job, what is the function of the connector?

• A.Configure how jobs connect to external data sources
• B.Provide optimization parameters to provide data import and export performance
• C.Configure how jobs connect to internal data sources
• D.Determine what conversion steps are in place

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