In Fusionlnsight HD products, which statement about Kafka components are correct? (Multiple choice)

• A.Kafka installation and operation log save path is /srv/Bigdata/kafka
• B.Unavailability of the ZooKeeper service will cause the Kafka service to be unavailable
• C.Must use admin user or Kafka admin group user to create Topic
• D.When deleting a topic, you must ensure that the Kafka service configuration delete.topic.enable is set to true

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In Flink, the checkpoint mechanism can ensure that when the application fails during operation, it can recover from a certain checkpoint. During this process, the flow snapshot is established according to the inflow of data

• A.False
• B.True

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In the Fusioninsight product, which of the following descriptions about kafka topic is wrong?

• A.Each partition corresponds to a log file at the storage level, and all message data is recorded in the log file
• B.The number of Topic partitions can be configured when created
• C.Every message published to Kafka has a category, which is called topic and can also be understood as a queue for storing messages
• D.Each topic can only be divided into one partition area

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In Zookeeper's service model, the Leader node exists in the active-standby mode. All other nodes belong to the Follower node.

• A.False
• B.True

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Fusioninsight Manager's statement about the configuration function of the service is incorrect?

• A.Instance-level configuration takes effect only for this instance
• B.Instance-level configuration also takes effect on other instances
• C.After the configuration is saved, you need to restart the service to take effect
• D.Service level configuration can take effect for all instances

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