H13-723_V2.0 Exam Training Practice Tests (Huawei HCIP-Big Data Developer V2.0)]

Question 1

existMapReduceIn application development of , which of the followingJAVA, Class responsible for managing and running a computational task?

A. Configuration B. lob C. FileSystem D. Context

Correct Answer: B

Question 2

Fusionmnsight HDproductSoDuring application development, you canSolr Admin UIxrightCollection One-shot verification is performed. Draw aboutSolr AdminUIIs the statement correct? (multiple choice)

A. Enter the Core Oveview interface where Calectiopeyshard Replicaf is installed, and you can view the Replca index Real Qunwen You Department relies on storing size and location information B. Click Tree under Cloud to view metadata such as Collections, configuration sets, and ive nodes in Solr loud information C. Users of the Sor user group, Solr admin role, and Super group can access the Solr Admin UI D. Click Cloud to view the Replica distribution and status of each Shard under each Collection

Correct Answer: A,B,C

Question 3

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

A. Cache data and save data in memory or files according to different reliability policies B. Output data to the destination, support multiple output protocols C. Split the data and send the data to different destinations according to the characteristics of the data D. Get data and convert raw data into data objects that you process yourself

Correct Answer: D

Question 4

existSpark, assuminglinesIs anDStreamObject, which of the following statements can periodically count the number of words on this stream?

A. lines.flatMap(_.split??)).flatmap(word=>(word,1)).groupByKey(_+_).print ( ) B. lines.flatMap(_.split??)).map(word=>(word,1)).reduce(_+_).print ( ) C. lines.flatMap(_.split??)).map(word=>(word,1)).reduceByKey(_+_).print ( ) D. lines.flatMap(_.split??)).map(word=>(word,word.length())).reduceByKey(_+_).print ( )

Correct Answer: C

Question 5

.existFusionInsight HDin, useSparkSQL, which of the following methods (or tools) can be used to performSQLstatement?
(multiple choice)

A. spark-sql B. spark-beeline C. JDB, C

Correct Answer: A,B,C

Question 6

HDFSThere is a file in the cluster root directorytest, which of the following commands can find the file stored in ofDataNodeNode information?

A. hdfs fsck/test.txt-files B. hdfs fsck/test.txt-blocks C. hdfs fsck/test.txt-locations D. hdfs fsck/test.txt-list-corruptfileblocks

Correct Answer: A

Question 7

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

A. True B. False

Correct Answer: A

Question 8

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

A. sort B. split C. partition D. combine

Correct Answer: B

Question 9

HDFSThere is a file in the cluster and directorytext.txt, which of the following commands can find theDatNodenode information?

A. hdfs fsck /test.txt-blocks B. hdfs fsck /test.txt-list-corruptfileblocks C. hdfs fsck /text.txt-locations D. hdfs fsck /test.txt-files

Correct Answer: C

Question 10

FusionInsight HDofLoader, a connector can only be assigned to one job.

A. True B. False

Correct Answer: B

Question 11

existFusionInsight HDclient, executeskinit{account}command is to getKDCwhich content?

A. ST B. TGT C. jaas.conf D. Krb5.conf

Correct Answer: B

Question 12

Spark SQLIn the table, there are often many small files (the size is much smaller thanHDFSblock size), in this case,Sparkwill enable aTaskto process these small files, whenSQLexist in operationShufleWhen operating, will greatly increasehashThe number of dynamic buckets will seriously affect the performance.

A. True B. False

Correct Answer: A

Question 13

Which of the following options isYarncore functionality?

A. search B. storage C. data transmission D. Resource management

Correct Answer: D

Question 14

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

A. rightmapThe results of the stages are sorted and merged B. Split the input data into individualsplit, and willsplitfurther split into<key,value>yes, then asmapletter input of numbers C. mergemapThe result of the stage has the samekeyvalue key-value pair D. put allmapThe results of the stages are merged to get the final result

Correct Answer: B

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