Which of the following statements about Huawei's big data solution is correct? (Multiple choice)

• A.Farmer is a data service framework
• B.Fusioninsight HD is an enhanced version based on the open-source big data software Hadoop
• C.GaussDB is an open-source database product
• D.Fusioninsight Manager is a distributed system management framework, administrators can control distributed clusters through multiple access points

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In order to optimize performance, it is recommended to deploy LdapServer and KrbServer on the same node in all clusters.

• A.True
• B.False

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Which of the following statements about atomicity in the key features of ZooKeeper is correct?

• A.The update can only be fully completed or failed, not partially completed
• B.No matter which server in the cluster, the external display is the same view
• C.A message received by one server will be received by all servers
• D.Updates sent by the client will be applied in the order they were sent

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Regarding the Kafka message consumer reading the message, which of the following is wrong?

• A.The messages generated by the producer are placed at the end of the topic one by one.
• B.The blue is a topic of Kafka, which can be understood as a queue, and each grid represents a message.
• C.The consumer reads the messages sequentially from right to left.
• D.Consumer uses offset to record the read position

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Which of the following is not a core element of KrbServer?

• A.Kerberos Client
• B.KDC (Key Distribution Center)
• C.Kerberos KDC Server
• D.Kerberos KDC Client

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