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

Page: 4 / 11
Total 526 questions

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

A.

Split

B.

combine

C.

partition

D.

sort

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

A.

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

B.

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

C.

Output data to the destination, support multiple output protocols

D.

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

Fusionlnsigt HDWhat distributed computing frameworks do big data platforms provide? (multiple choice)

A.

HBase

B.

Spark

C.

MapReduce

D.

Streaming

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

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

A.

submitcommand to change the status of the job toPREP

B.

startcommand allowsPREPThe status of the job changes toRUNNING

C.

runcommand to change the job status toRUNNING

D.

killCommands can act onPREP/SUSPEND/RUNNINGstatus job

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-locations

C.

hdfs fsck/test.txt-blocks

D.

hdfs fsck/test.txt-list-corruptfileblocks

coordinator.xmlis the configuration file responsible for scheduling the workflow

A.

True

B.

False

aboutStreamingthe topology (Topology), which of the following descriptions is wrong?

A.

OneTopologyis made up of a group ofSpoutcomponents andBotcomponents passStream GroupingsA connected directed acyclic graph (DAG)

B.

Topologywill run until it is explicitlykill

C.

Business logic is encapsulated inTopologymiddle

D.

OneTopologyOnly one can be specified to startWorkerprocess

Which of the following is notMapReducespecialty?

A.

Easy to program

B.

Good scalability

C.

Real-time computing

D.

High fault tolerance

Flumebranch__________real-time data collectionsourceWhich is the type?

A.

taildir

B.

Log4j

C.

JMS

D.

Thrift

FusionInsight HDin the system,FumeWhich component does the data flow not need to go through within the node?

A.

Source

B.

channel

C.

sink

D.

topic

HuaweiFusionInsight HDin the cluster,SparkFrom which of the following services can a service read data? (multiple choice)

A.

YARN

B.

HDFS

C.

Hive

D.

HBase

existKafka, as follows aboutProducerWhat is wrong with the statement of sending data? (multiple choice)

A.

ProducerResponsible for production data,Consumerresponsible for consuming data,ProducerandConsumerneed to be established betweenSocket

connect

B.

Producercan either send data toBroker, and can send data toConsumersuperior

C.

ProducerAs a message producer, you can directly write data toZooKeeper

D.

Producerconnect any normalBrokerInstances can produce data

FusionInsight HDWhat are the supported ways to submitOozieOperation? (multiple choice)

A.

ShellOrder

B.

Java API

C.

Hue UI

D.

Rest API

aboutFusionInsight HDplatformHiveservice, itsWebHCatDevelopment interface, the following description does not

the correct one is?

A.

Support based onRESTquery request

B.

WebHCatThe return data format isXML (Json)

C.

WebHCatbased onHTTPandHTTPS

D.

Agreement to provide services to the outside world able to passWebHCatCreate tables, query, etc.