A.Many data sources and formats

B.Data value density is low and value is high

C.Large amount of data and large amount of calculation

D.Data growth rate is fast, processing speed is fast

A.Block

B.Documents

C.Contents

D.None of the above is correct

A.Memory Channel

B.File Channel

C.JDBC Channel

D.HDFS Channel

A.A message needs to be received by more than half of the servers. It can be successfully written to disk

B.The number of Zookeeper nodes must be an odd number.

C.Message update can only succeed or fail, there is no intermediate state.

D.Updates sent by the client will be applied in the order in which they were sent.

A.Waiting for irrelevance

B.Eventual consistency

C.Atomicity

D.Reliability