existKafka, as follows aboutProducerWhat is wrong with the statement of sending data? (multiple choice)

• A.ProducerResponsible for production data,Consumerresponsible for consuming data,ProducerandConsumerneed to be established betweenSocket connect
• B.Producercan either send data toBroker, and can send data toConsumersuperior
• C.ProducerAs a message producer, you can directly write data toZooKeeper
• D.Producerconnect any normalBrokerInstances can produce data

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Which of the following is notMapReducespecialty?

• A.Easy to program.
• B.Calculate in real time
• C.High fault tolerance
• D.Good scalability

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Which of the following descriptions about massive small file storage is correct ( )?
(multiple choice)

• A.HDFSStoring a large number of small files will giveNameNodebring great pressure.
• B.HuaweiHFSIt is suitable for storing a large number of small files, and files can be selectively stored inHDFSorMOBmiddle.
• C.HBaseStore a large number of small files,Compactionwill bringIOWaste of resources.
• D.The above statement is not correct.

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existFusionInsight HDUnder the client, to runMapReducegenerated by the applicationjarBag. Which command can be executed?

• A.yarn application
• B.yarn jar
• C.hdfs dfs

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existKafkamiddle,ProducerThis can be done by configuring the synchronization parameters (producer.type) to ensure that data is sent in order.

• A.True
• B.False

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