In the Kafka cluster, the role of the Kafka server is:

• A.Consumer
• B.Producer
• C.Broker
• D.Zookeeper

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HiveComponents support a variety ofAPI interface. Which of the following interfaces is not supported?

• A.JDBC
• B.Beeline
• C.ODBC
• D.Restful

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Use the Hbase client to write 10 pieces of data in batches. An HRegionServer node contains 2 regions of the table, namely A and B.
Among the 10 pieces of data, 6 belong to A and 4 belong to B.
Please write How many RPC requests do I need to send to HRegionServer for these 10 pieces of data?

• A.2
• B.6
• C.1
• D.10

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The picture below shows Sparke&MapReduce performance comparison data, it can be concluded that compared with MapReducei computing, Spark uses( )resources, get( )double the performance?

• A.1/8, 3
• B.1/8, 4
• C.1/10, 3
• D.1/10, 4

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Which of the following description about FusionInsight multi-tenant management is correct? (Multiple choice)

• A.Isolation of tenant resources based on the container mechanism, escorting tenant SLA
• B.Visualized multi-level tenant management, matching the corporate organizational structure, simplifying system resource allocation and management
• C.One-stop management of tenant resources, computing resources (CPU/memory/IO), storage resources (HDFS), service resources (HBase...)
• D.A multi-level tenant model that matches the organizational structure of the enterprise, different departments correspond to different tenants, and tenants are dynamically added or deleted on demand

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