In the Fusionlnisght HD system, the number of Partitions and the number of replicas must be set when creating the Topich of Kafkal. Setting up multiple replicas can enhance the disaster tolerance of the Kafka service.

• A.False
• B.True

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What are the main characteristics of big data analysis related technologies? (Multiple choice)

• A.Analysis of event relevance behind the data
• B.Machine learning, full features
• C.Based on accurate samples
• D.Based on massive data

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When a Spark application is running, if a certain task fails to run, the entire app fails to run.

• A.False
• B.True

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The ZKFC process is deployed on the following node in HDFS?

• A.Standby NameNode
• B.All of the above are wrong
• C.DataNode
• D.Active NameNode

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HDFS of HadoopE is a distributed file system. Which of the following application scenarios is suitable for data storage and management?

• A.Streaming data access
• B.Lots of small file storage
• C.High capacity and high leaf swallowing capacity
• D.low latency read

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