Question 1

HiveWhich of the following scenarios does not apply to?

Options :

A : Real-time online data analysis.

B : Data mining, such as user behavior analysis, interest division, regional display.

C : Data summary, such as daily and weekly user clicks, click ranking.

D : Non-real-time analysis, such as log analysis, statistical analysis.

Answer: A

Question 2

forHBase rowkeyThe design principles described below are correct? (multiple choice)

Options :

A : Attribute values with high access weight are placed inRowKeyFront

B : Attribute values with high access weight are placed inRowkeysecond half

C : Attribute values with good dispersion are placed inRowkeyfirst half

D : Attribute values with good dispersion are placed inRowkeysecond half

Answer: A,C

Question 3

existMapReduceIn the development framework,InputFormatWhat is the function of the class?

Options :

A : mergemapThe result of the stage has the samekeyvalue key-value pair

B : put allmapThe results of the stages are merged to get the final result

C : rightmapThe results of the stages are sorted and merged

D :

Split the input data into individualsplit, and willsplitfurther split into<key,value>yes, then asmapletter

input of numbers

Answer: D

Question 4

aboutKafkaofPeoducer, 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,B,C,D

Question 5

HDFSIn application development of , which of the following fields areHDFSInterfaces supported by the service? (multiple choice)

Options :

A : BufferedOutputStream.write

B : BufferedOutputStream.flush

C : FileSystem.create

D : FileSystem.append

Answer: A,B,C,D