A.False

B.True

A.Proucer can not only send data to Broker, but also send data to Consumer

B.Proucer connects to any normal Broker instance to generate data

C.As a message producer, Proucer can write data directly to Zookeeper

D.Proucer is responsible for producing data, Consumer is responsible for consuming data, and a connection needs to be established between Producer and Consumer.

A.hexists

B.scard

C.zcount

D.sunion

A.Load the files in the local path directly into the Hive table

B.Insert the result set of other tables into the Hive table

C.Hive supports insert into a single record method, so you can insert a single record directly on the command line

D.Load the files on HDFS into the Hive table

A.Blocks on a DataNode can be the same

B.The blocks stored by different DataNodes must be different

C.Will not check the validity of the data

D.Periodically send the block related information of this node to the NameNode