The following are the characteristics of Huawei Kunpeng processor

• A.Safe and reliable, creating high quality as stable as Mount Tai
• B.Open ecology, support mainstream software and hardware in the industry, and work with developers, partners and industrial organizations to create a new base for intelligent computing
• C.everything abovecorrect
• D.High-performance computing, ARM-compatible high-performance Kunpeng processors and x86-architecture servers and solutions

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The "Group by" in Hive refers to dividing a data set into several small data sets through certain rules, and then performing data grouping processing for several small data sets.

• A.False
• B.True

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After the Loadert job in Fusioninsight HD is submitted to YARN, the job cannot be manually stopped.

• A.False
• B.True

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The following aboutHWhich of the descriptions of the Base secondary index is correct?

• A.Secondary index compares the column to be searched with rowkey is associated with a prime index table
• B.all of the abovecorrect
• C.twoclassIndex queried 2 times
• D.At this time, it is listed as a new rowkey, and the original rowkey becomes value

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In a Huawei Fusioninsight HD cluster, which of the following services can the Spark service read data from?

• A.YARN
• B.HBase
• C.Hive
• D.HDFS

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