Question 1

aboutKafkaofProducer, is the following statement correct? (multiple choice)

Options :

A : Produceris a message producer

B : ProducerProduction data needs to be specifiedTopic

C : Can play multiple at the same timeProducerprocess to the sameTopicsend data

D : ProducerNeed to connect first when producing dataZooKeeper, and then connectBroker

Answer: A,C

Question 2

when aMapRcdueWhen the application is executed, which of the following actions ismapoccurs before the stage of?

Options :

A : split

B : combine

C : partition

D : sort

Answer: A

Question 3

Tonganeng's societyHDofe, user-definedUDFcan andHmachine built-inUDFclass name,

In this case, the user-definedUDF.

Options :

A : True

B : False

Answer: A

Question 4

existFusionInsight HDin, aboutHivepartition (partition) function, which is wrong as described below?

Options :

A : Partition fields are defined when the table is created

B : There can only be one partition field, and multi-level partitions cannot be created

C : Using partitions can reduce the data scan range of some queries, thereby improving query efficiency

D : Partition fields can be used aswherecondition of the sentence

Answer: B

Question 5

FusionInsight HDin, aboutHivethe data load function (viaHiveofLOADcommand guide

input data), which of the following descriptions is wrong?

Options :

A : available fromHDFSdirectly into thehivesurface

B : available fromHiveServerThe local hard disk of the node is directly loaded into thehivesurface,

C : It can be directly loaded from the local hard disk of the node where the client is located.hivesurface

D : HiveThe data loading process does not parse the specific file content, mainly the process of file transfer

Answer: C

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