H13-723_V2.0 HCIP-Big Data Developer V2.0 Question and Answers

existKafkain, aboutConsumerWhich statement is correct? (multiple choice)

Suppose there is an application that needs to be accessed frequentlyOracleThe user table in the database, in order to improve performance, introduce

Redisto cache user information. For this scene,RedisWhich of the following is the best data structure choice for ?

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

(multiple choice)

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.

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

HDFSclient withNcopy toHDFSWhen writing a file, if one of the replicas fails to write, all replicas will return to writing

Entry failed.

FusionInsight HDin, aboutHive UFDSecondary development, is the following description correct? (multiple choice)

.existSparkmiddle,SparkSQLis an independent module that does not depend onSparkCorefinish independentlySQLSentence parsing, optimization

operations such as transformation and execution.

RDDasSparkThe core object, which has the following characteristics? (multiple choice)

A project needs to save the Internet access data in a certain area, and search the full text of these Internet access records to see if there is any sensitive data.

Sensitive information is used to prevent crimes in this area. In this scenario, which of the following options is the best?

set the block storage size to128M,HDFSWhen the client is writing a file, when writing a100M

How much storage space does a file of this size actually occupy?

existFusionInsight HDofHBase, which of the following scenarios will not triggerFlushoperate?

FusionInsight HD V100R002C60in, aboutHiveofPythonInterface type, which of the following descriptions is incorrect?

FusionInsight HDofHiveIn the application, there are the following scenarios:? ? ?Storage files have higher? ?efficiency, and most

Minute? ?Only a part of the letter is involved in the file, this scenario is suitable for using a column file (ORC F??)storage.

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

existFusionInsight HDmiddle,SparkBy defaultYARNAs a cluster resource management system.

FusionInsight HDmiddle,StreamingWhich of the following scenarios is applicable? (multiple choice)

writingMapReduceWhich two interfaces are usually required to be implemented by developers?

existKafka, which of the following commands can view aTopicHow many partitions are there?

Which of the following causesHDFSofNameNodeEntersafemode(safe read-only mode)? (multiple choice)

existSpark, the accumulator can realize high-speed parallel counter and variable summation; inSparkduring application development,

only inDriverGet the value of this counter on .

existFusionInsight HDcluster, aboutkinitOperation command, which of the following statements is wrong? (multiple choice)

YarnWhich role is to manage individual node resources (CPU/Memory)of?

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

useFusionInsight HDofHiveQuery data, when the amount of data in the intermediate results of the query is large, you can choose to compress the intermediate data

Structured data for better performance.

Which of the following areHiveRelevant parameters for intermediate result compression? (multiple choice)

In the online log query scheme, the?processing to complete the calculation work. During the whole calculation process, the intermediate calculation results need to be

For temporary storage, which of the following components are suitable for storing intermediate calculation results? (multiple choice)

Which of the following measures can improveHBasequery performance? (multiple choice)

existFlumeDuring cascaded transfers, you can usefail overmode transfer, so that if the next hop isFlumenode failure or

When the data is received abnormally, it can automatically switch to another way to continue transmission.

HBaseFilters can set column names or column values as filter conditions, and support the use of multiple filters at the same time.

In useSolrWhen performing a full-text search, you canwtThe parameter specifies the response format of the query result.

aboutSolrThe response format of the query result, which of the following statements is wrong?

which come downRedisIs the command an atomic operation?

FusionInsight HDsystematicV100R002C60version,HiveOnly supports based onMapReduceEngine query service,

not supported based onSparkEngine query service.

FlumewriteHDFSWhen the file is generated, what are the ways of generating the file? (multiple choice)

FlinksupportLocalpattern andClusterpattern deployment(and cloud deployment), other deployment modes are not currently supported.

Fusionlnsigt HD one deployed inTomcatapplication on theHBaseservice, it is recommended to use in this scenario machine account.

FusionInsight HDproduct, aboutKafkaThe component statement is correct?

(multiple choice)

In ThereNnodesFusionInsightHDDeploy in a clusterHBase, it is recommended to deploy()HMaster process, ( )RegionServerprocess?

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

FusionInsight ManagerRegarding the management operations of services, which of the following statements is wrong?

FusionInsight HDin, aboutHivethe data load function (viaHiveofLOADcommand guide

input data), which of the following descriptions is wrong?

existMapReduceDuring application development,setMapOutputCompressorClassWhat is the role of classes?

existFusionInsight HDproduct,KafkaWhat is the role name of the service?

HDFS"Write once, read many"__________File access model. Therefore, it is recommended that a document

existHBaseWhich of the following interfaces or classes does not need to be involved in the implementation of business logic for writing data?

existSpark, which of the following statements about broadcast variables is correct? (multiple choice)

Which of the following causesHDFSofNameNodeEntersafemode(safe read-only mode)?

(multiple choice)

aboutKafkaThe characteristics of the following description are correct? (multiple choice)

FusionInsght ManagerWhat interfaces are supported when interfacing with external management platforms?

(multiple choice)

FusionInsight HD HBasein the cluster,Table1belongNamespace1,Table2belong

Namespace2,Table1There are two column families, namelycf11,c12,Table2There is a column family namedcf21,

Which of the following options will allow the user accountAalso havecf11andcf21read and write permissions. (multiple choice)

Fusionlngight HDin the system,SolkaExample projectsdk-sxamgelconlf\udlr-eamgple

propertyamiddleZX.URLandZ0OKEEPER DEFAULT SERVER PRINCIPLThe value can be obtained from the following

Which is the quickest pick?

useHBaseClient batch write10piece of data, aHRegionServercontains the table on the node

of2indivualRegion, respectivelyAandB,10in the data2Article belongs toA,4Article belongs toB, please write this

10pieces of data need to be sent to theHRegionServersend several timesRPCask?

FusionInsight HDin the systemHDFSdefaultBlock Sizehow many?

FusionInsight HDmiddle,StreamingPackaging tools are used to package business codejarpackages and other dependenciesjarpackage, etc.

a completeStreamingAppliedjarBag

FusionInsight HD assuming a topology, set the roadspoutConcurrency is3,bolt1Concurrency

for2,bolt2Concurrency is3,workerThe number is2,Sobolt1ofexecutorexistworkerhow to divide

Cloth?

passing throughFusionindight ManagerWhen the interface creates a user, you want the user to have access to allTopichave

Read and write permissions, but not createTopicpermissions should be addedkafkaWhich group of services?

existFusionInsight HDmiddle,FlumeWhich of the following are supportedsourceTypes of? (multiple choice)

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

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

aboutKafkaInsufficient disk capacity alarm, which of the following analysis is incorrect for the possible reasons?

existSparkmiddle,SparkSQLis an independent module that does not depend onSparkCoretstandtasQaon.eaR. operation, etc.

useFusionInsight HDofHiveQuery data, when the intermediate result of the query has a large amount of data.

You can choose to compress the network result data to obtain better performance. Which of the following areHiveCorrelation of intermediate result compression

parameter? (multiple choice)

Which of the following descriptions about massive small file storage is correct ( )?

(multiple choice)

SparkThe calculation logic of the application will be parsed intoDAG, this parsing operation is completed by which of the following function modules

become?

FlinkThe two key elements of the program arestreamdata andtransformationoperator.

existHBaseWhich of the following interfaces or classes does not need to be involved in the implementation of business logic for writing data?

Which of the following is notHBaseThe roles or services involved in the read data process? (Writing isHMaster)

forFusionInsight HDplatformHBasecomponent, adding a secondary index needs to define the secondary index Which properties? (multiple choice)

InstallFusionInsight HDofStreamingcomponents,NimbusHow many nodes does the role require to install?

existFusionInsight HDclient, executeskinit{account number}command is to getKDCwhich of the item content?

existFusionInsight HDproduct,KafkaWhat is the role name of the service?

Rcboft0system, abouteWhich of the provided file formats is not in column format?

FusionInsight HDin, aboutOoziejob management for suspended jobs

Which of the following operations? (multiple choice)

FusionInsight HDin, aboutHivethe data load function (viaHiveofLOADcommand guide

input data), which of the following descriptions is wrong?

HBasedata fileHFileone ofKeyValueWhat information does the format contain?

(multiple choice)