In Kafka, which of the following statement about the data sent by the Producer is wrong? (Multiple choice)

• A.As a message producer, Proucer can write data directly to Zookeeper
• B.Proucer is responsible for producing data, Consumer is responsible for consuming data, and a connection needs to be established between Producer and Consumer.
• C.Proucer can not only send data to Broker, but also send data to Consumer
• D.Proucer connects to any normal Broker instance to generate data

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In the Hadoop system, if the backup factor of the HDFS file system is 3, then each time MapReduce runs a task, it must transfer the file segments to be processed from 3 machines with replicas.

• A.True
• B.False

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Which of the following designs are mainly considered in the planning process of the big data business consulting service plan?

• A.Panoramic planning of business scenarios
• B.Typical Scenario Requirements Design
• C.Scenario decomposition and business design
• D.Big data business model design

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Which of the following options belong to Fusioninsight data security? (Multiple choice)

• A.Operating system security hardening
• B.User authority authentication management
• C.Component data encryption
• D.Data integrity check

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Flume's properties.properties configuration file can configure multiple channels to transmit data.

• A.True
• B.False

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