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H13-723_V2.0 – HCIP-Big Data Developer V2.0

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Showing 10–12 of 20 questions

Question 10 (Exam Pool D)

HDFSclient withNWhen a copy writes a file, which of the following is true about the writing process? (multiple choice)

Select all that apply, then click Submit answer.

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    eachDataNodemaximum storage1copies.
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    Support multiple users to write to the same file at the same time.
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    The first copy of the data block is placed preferentially on the node where the client writing the data block is located.
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    Copied file blocks all exist on the same rack by default.
Question 11 (Exam Pool C)

existSpark, assuminglinesIs anDStreamobject,filterStatements can be filtered out80%the number of

According to the following two sentences, the law is correct:X:lines.filter( ).groupByKey(.)Y:

lines.groupByKey( ).filter( )

Select an option, then click Submit answer.

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    X is more performant than Y
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    X is less performant than Y
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    X and Y are the same as performance
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    Uncertainty about the performance difference between X and Y
Question 12 (Exam Pool C)

existMapReduceIn application development of , which of the followingJAVAThe class is responsible for managing and running a

Counting tasks?

Select an option, then click Submit answer.

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    Job
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    Context
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    FileSystem
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    Configuration