Question 1

FlumewriteHDFSWhen the file is generated, what are the ways of generating the file? (multiple choice)

Options :

A : Generate files directly according to the source file name

B : Set the file generation time interval, close the old file when the time interval is reached, and the new data will be written to the new file

C : Set the size of a single file, when the file size reaches the set value, the old file will be closed, and the new data will be written to the new file

D : Set up single file storageeventquantity, when the file is storedeventWhen the number reaches the set value, the old file will be closed, and the new data will beis written to a new file

Answer: A,B,C,D

Question 2

Tonganeng's societyHDofe, user-definedUDFcan andHmachine built-inUDFclass name,In this case, the user-definedUDF.

Options :

A : True

B : False

Answer: A

Question 3

SparkThe calculation logic of the application will be parsed intoDAG, this parsing operation is completed by which of the following function modules become?

Options :

A : Client

B : ApplicationMaster

C : Executor.

D : Driver

Answer: D

Question 4

TowardsHBaseincrease in the clusterRegionServerhost, the original cluster must be stopped first, becauseHBaseDynamic expansion is not supported.

Options :

A : True

B : False

Answer: B

Question 5

existFusionInsight HDWhen developing applications with a secure version, you can usekeytabDocuments are authenticated securely.

Options :

A : True

B : False

Answer: A

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