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

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Total 526 questions

FusionInsight HD a completeStreaming CQLThe application contains at least which of the following part? (multiple choice)

A.

Create an input stream

B.

Create output stream

C.

Business action statements (such asSELECT,INSERT,JIONWait)

D.

Apply commit statement

existFusionInsight HDproduct, aboutKafkaWhich of the descriptions of secure and non-secure ports is wrong?

(Note: oldAPImeans oldProducerAPIand oldConsumerAPI. Among them, the oldConsumer API:

Refers tokafka.consumer.ConsumerConnectorinterface defined in; oldProducerAPI:Refers to

kafka.producer.Producerinterface defined in . )

A.

KafkaThe cluster security access port defaults to21007, the non-secure access port defaults to21005.

B.

oldAPIpass through21005access to a portTopicThe premise is: server parameters

allow.everyone.if.no.acd.foundSet astrue, and thisTopicnot setA, CLAttributes.

C.

oldAPIAccess only21005port; newAPICompatible access to non-secure ports21005and secure port 21007.

D.

for settingA, CLofTopic, you can use the oldAPIconnect21005port to access.

FusionInsight HDin, aboutHive UDFsSecondary development, is the following description correct?

(multiple choice)

A.

user definedUDFBefore being used, it needs to beHivecreate this in the systemUDF.

B.

user definedUDF, information such as summary and status is not allowed.

C.

user definedUDF, can be added according to the actual situationdeterministicandstatefuletc. Notes.

D.

Under the secure cluster, user-definedUDF, it is recommended to create it once before each use.

existStreamingin application development,BoltUse which of the following interfaces to sendTuple?

A.

to emit

B.

execute

C.

open

D.

nextTuple

existSpark, which of the following statements about broadcast variables is correct?

A.

broadcast variable in everyTasksave a copy

B.

broadcast variable in eachExecutorsave a copy

C.

Broadcast variables are read-only

D.

broadcast variable viaSparkContext.broadcast() method to generate

Spark StreamingAs a micro-batch stream processing engine, it converts the data of each time slice into OneRDDa partition in the

A.

True

B.

False

HiveWhich of the following scenarios does not apply to?

A.

Real-time online data analysis.

B.

Data mining, such as user behavior analysis, interest division, regional display.

C.

Data summary, such as daily and weekly user clicks, click ranking.

D.

Non-real-time analysis, such as log analysis, statistical analysis.

FusionInsiat HD the user wants to passHBase shelloperation to query aHBasein the table. In this scenario, it is recommended that the administrator assign a machine account to this user.

A.

True

B.

False

FusionInsight HDin, belonging toStreamingWhat are the roles of the service? (multiple choice)

A.

Nimbus

B.

Supervisor

C.

Broker

D.

quorumpeer

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

A.

lines.flatMap(_.split(" ")).map(word =>(word,1)).reduce(_+_).print( )

B.

lines.flatMap(_.split(" ")).map(word =>(word,word.length())).reduceByKey

(_+_).print( )

C.

lines.flatMap(_.split(" ")).map(word =>(word,1)).reduceByKey(_+_).print

( )

D.

lines.flatMap(_.split(" ")).flatmap(word =>(word,1)).groupByKey(_+_).print

( )

for running onMapRestoeThe application on the platform, on which this application is basedjarpackage is placed where?

A.

HIVE

B.

HBASE

C.

HDFS

D.

DB

FusionInsight HD assuming a topology that setsspoutConcurrency is3,bolt1Concurrency

for2,bok2Well degree is3.workerThe number is2,Sobolt1ofexecutorexistworkerhow to divide Cloth?

A.

twoworkerone of theworkerdistribute two

B.

twoworkerone for each

C.

no fixed rules

D.

twoworkerBoth are distributed

HBaseWhich application scenarios are not suitable for?

A.

requires fullA, CIDFeature application scenarios

B.

Mass data application scenarios

C.

High throughput application scenarios

D.

Semi-structured data application scenarios

HDFSIt adopts a "write once, read many" file access model. Therefore, it is recommended that a document

After creating and writing the profit, do not modify it again.

A.

True

B.

False

which is notflumeofchannelTypes of?

A.

Memory Channel

B.

File Channel

C.

JDB, C Channel

D.

HDFS Channel