Huawei H13-723_V2.0 Exam Practice Test Instant Access

Question 1

FusionInsight HDin, aboutOozieWhich of the following descriptions is correct? (multiple choice)

Asubmitcommand to change the status of the job toPREP

Bstartcommand allowsPREPThe status of the job changes toRUNNING

Cruncommand to change the job status toRUNNING

DkillCommands can act onPREP/SUSPEND/RUNNINGstatus job

Answer : A, B, C, D

Question 2

existFlumemiddle,sourceWhat is the main function of the function module?

AGet data and convert raw data into data objects that you process yourself

BCache data and save data in memory or files according to different reliability policies

COutput data to the destination, support multiple output protocols

DSplit the data and send the data to different destinations according to the characteristics of the data

Answer : A

Question 3

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

ATrue

BFalse

Answer : B

Question 4

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

APartition fields are defined when the table is created

BThere can only be one partition field, and multi-level partitions cannot be created

CUsing partitions can reduce the data scan range of some queries, thereby improving query efficiency

DPartition fields can be used aswherecondition of the sentence

Answer : B

Question 5

existFusionInsight HDmiddle,SparkBy defaultYARNAs a cluster resource management system.

ATrue

BFalse

Answer : A

Question 6

HDFSIt adopts a "write once, read many" file access model. So it is recommended that a file be created, written and

After closing, do not modify it again.

ATrue

BFalse

Answer : A

Question 7

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

AmergemapThe result of the stage has the samekeyvalue key-value pair

Bput allmapThe results of the stages are merged to get the final result

CrightmapThe results of the stages are sorted and merged

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

Answer : D

Huawei H13-723_V2.0 HCIP-Big Data Developer V2.0 Exam Practice Test