Huawei Real Dumps Practice Exam Questions by Dumpswarp

HCIP-Big Data Developer V2.0 Questions and Answers

Question 1

pass throughHBasefofcreateTableThe method creates a table, what parameters must be passed in?

Options:

Table Name

table names and columns

Table names and column families(family)

can be empty

Question 2

deployFusionInsight HD within the same clusterFlume ServerHow many nodes are recommended to deploy at least?

Options:

Question 3

Regarding the Redis cluster topology information, which of the following descriptions is correct?

Options:

The client caches the topology information of the cluster.

The server caches the topology information of the cluster

both are

neither

Question 4

forSpakstreamingapplication, in aJVM, there can only be one at a time

Streamingcontextis active.

Options:

True

False

Question 5

FusionInsight HDofStreamingforZooKeeperweak dependency, even ifZooKeeperFault

StreamingServices can also be provided as normal.

Options:

True

False

Question 6

Fasionlrnight HD Heenein the group,Table1GenusFNamespacel,Table2GenusFNamespace2,

Table1there are two1columns, respectivelyRdf11.df12,TablezThere is a column home namedf21, then which of the following

user account9AAt the same time have|ef18d21oftwrite rights. (multiple choice)

Options:

Give this user accountglobelread permission

Give this user accountNamespace1read and write permissions

Give this user accountTable1andTable2read and write permissions

Give wave user accountNamespace1andNamespace2read and write permissions,

Question 7

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

Options:

True

False

Question 8

Fusionmnsight HDproductSoDuring application development, you canSolr Admin UIxrightCollection

One-shot verification is performed. Draw aboutSolr AdminUIIs the statement correct? (multiple choice)

Options:

Click Tree under Cloud to view metadata such as Collections, configuration sets, and ive nodes in Solr loud information

Click Cloud to view the Replica distribution and status of each Shard under each Collection

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

Users of the Sor user group, Solr admin role, and Super group can access the Solr Admin UI

Question 9

LoaderIf the job execution fails, the data imported during the running of this job will not be deleted automatically.

must be deleted manually.

Options:

True

False

Question 10

Oozieofworkflow.xmlfile is the workflow configuration file

Options:

True

False

Question 11

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

Options:

HIVE

HBASE

HDFS

Question 12

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

Options:

ZooKeeper

HDFS

HMaster

RegionServer

Question 13

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

Options:

ProducerResponsible for production data,Consumerresponsible for consuming data,ProducerandConsumerneed between EstablishSocketconnect

Producercan either send data toBroker, and can send data toConsumersuperiorProducer

As a message producer, you can directly write data toZooKeeper

mouthProducerconnect any normalBrokerInstances can produce data

Question 14

A project needs to count the Internet access in a certain area and the serious crime in the area. Please make it clear that Nanyao teaches Huajin that it needs to be preserved, and fully check this

Are there sensitive information in these Internet records for pre-optimal solutions?

Options:

existsorCreate an index on the database, save the data, and return all the data when the full text is checked.

existHBasestore data on theHBaseThe filtering characteristics of , satisfy fuzzy matching query.

When storing data, inSolrOn the construction of information, through the customs messenger is on the electricity, if the lack of quality, Wan Mo dad will put the complete data,

When querying, bysorFull-text search to obtain record key

Question 15

FSpark Streamingapplication, in aJVM, there can only be one at a time

StreamingContextin active state

Options:

True

False

Question 16

FlinkThe two key elements of the program arestreamdata andtransformationoperator.

Options:

True

False

Question 17

SparkandHadoopNeither is suitable for iterative calculation scenarios.

Options:

True

False

Question 18

existHBaseIn application development, when a table'sRowkeyRange and distribution are known, pre-score is recommendedregion,

Please call the following code (fragment) to pre-sort a tableregionAfter this table will create severalregion?

//Create a pre-partitionregionthe tablebyte【】I splits = new byte【4];splits【0】=Bytes.toBytes

("A");splits【1】=Bytes.toBytes("H");splits【2】=Bytes.toBytes("O");splits

【3】=Bytes.toBytes("U");admin.createTable(htd,splits);

Options:

Question 19

FusionInsightHDin the system,HiveWhat are the supported interface types? (multiple choice)

Options:

mouthJDB, Cinterface

mouthODB, Cinterface

mouthPythoninterface

mouthRubyinterface

Question 20

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

Options:

True

False

Question 21

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

account information.

For this scene,RedisWhich of the following is the best data structure choice for ?

Options:

list

set

hash

sorted set

Question 22

Fusionlnsigt HD an application to completeKerberosSecurity authentication, which of the following options must be used?

(multiple choice)

Options:

krb5.confconfiguration file

existFusionInsight ManagerUser account applied on

user accountkeytabdocument

jaas.confconfiguration file

Question 23

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

Options:

NodeManager

Resource Manager

Data Node

NameNode

Question 24

Which of the following options isYarncore functionality?

Options:

storage

Resource management

data transmission

Question 25

existSpark, assuminglinesIs anDStreamobject,filterStatements can be filtered out80%data for the following two

The correct statement is:

X: lines.filter(…).groupByKey(…)

Y: lines.groupByKey(…).filter(…)

Options:

XCompareYhigher performance

XCompareYlower performance

XandYsame as performance

UncertaintyXandYdifference in performance

Question 26

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

Options:

submitcommand to change the status of the job toPREP

startcommand allowsPREPThe status of the job changes toRUNNING

runcommand to change the job status toRUNNING

killCommands can act onPREP/SUSPEND/RUNNINGstatus job

Question 27

Fusioninsight HDmedium, applicablestreamingSubmit by command lineexample.jarmiddle

om.huawei.example.wordcounttask, task name iswcTest, is the following execution command correct?

Options:

Storm.jar example.jar wcTest om.huawei..example.wordcount

Storm.jar example.jar wcTest wordcount

Storm.jar example.jar om.huawei..example.wordcount wcTest

Storm.jar example.jar wordcount wcTest

Question 28

Oozieofworkflow.xmlfile is the workflow configuration file

Options:

True

False

Question 29

Fusionlnsigt HD an application to completeKerberosSecurity authentication, which of the following options must be used?

(multiple choice)

Options:

krb5.confconfiguration file

existFusionInsight ManagerUser account applied on

user accountkeytabdocument

jaas.confconfiguration file

Question 30

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

Options:

True

False

Question 31

FusionInsight HD in real-time processing scenarios, what computing frameworks are available? (multiple choice)

Options:

Spark Streaming

Streaming

MapReduce

HDFS

Question 32

pass throughHBaseofcreateTableThe method creates a table, what parameters must be passed in?

Options:

Table Name

table names and columns

Table names and column families

can be empty

Question 33

FusionInsight HDin, aboutHiveandSparksql, which of the following descriptions are correct? (multiple choice)

Options:

Both are available externallySQLor classSQLability

Both can run onMapReduceon the computational framework

Both are available via table fields andHBaseAccess by field mappingHBasedata on

Both can run onSparkon the computational framework

Question 34

FusionInsight HDin, yesSolrThe creation of various resources and the use of read and write permissions, which of the following statements is wrong?

Options:

SolrUser group users can create configuration sets and createCollectionwhen specifying the configuration set

SolrUsers of the user group can createCollection

Collectioncreator, theCollectionroles with read and write permissions andSolr adminrole can beCollectionEnter row update

onlyCollectioncreator andSolr adminRoles can be deletedCollection

Question 35

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

Options:

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

connect

Producercan either send data toBroker, and can send data toConsumersuperior

ProducerAs a message producer, you can directly write data toZooKeeper

Producerconnect any normalBrokerInstances can produce data

Question 36

existKafkamiddle,ProducerThis can be done by configuring the synchronization parameters (producer.type) to ensure that data is sent in order.

Options:

True

False

Question 37

aboutFusionInsight HDofSpark, which of the following programming languages can be used to developSparkapplication? (multiple choice)

Options:

Scala

Java

Python

Question 38

about the followingHDFSWhat is the correct process for the client to read the file? (multiple choice)

Options:

priority from the nearestDataNodeDownload data.

file data fromDataNodeback toNameNode, then fromNameNodeDown to the client.

If the client and the connectedDataNodeIf there is a failure in reading, then the client will give up the applause node and connect the node where other replicas are located.

Supports multiple clients fromDataNoderead the same file data.

Question 39

FusionInsight HD which components are provided externallySQLor classSQLability? (multiple choice)

Options:

HBase

Hive

Spark

Redis

Question 40

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

A partition is calculated.

Options:

True

False

Question 41

FusionInsight HD a completeStreaming CQLWhich of the following parts does the application contain at least? (multiple choice)

Options:

Create an input stream

Create output stream

Business action statements (such asSELECT,INSERT,JIONWait)

Apply commit statement

Question 42

which come downRedisIs the command an atomic operation?

Options:

INCR(increment the stored digital value by one)

HINCRBY(for the hash tablekeydomain infieldvalue plus incrementincrement)

LPUSH(for linked listspushoperate)

All of the above

Question 43

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

Options:

Only the HMI account can be used.

Only the machine account can be used.

A client does not support the simultaneous use of multiple accounts.

The ticket obtained by executing this command is intwenty fourIt will time out when it is small and needs to be executed againkinitcommand to log in again.

Question 44

Which of the following methods can generateDStreamobject?

Options:

KafkaUtils.createStream(…)

KafkaUtils.createDirectStream(…)

StreamingContext.socketStream

StreamingContext.fileStream(…)

Question 45

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

Options:

True

False

Question 46

aboutFusionInsight HDplatformHiveservice, itsWebHCatDevelopment interface, which of the following descriptions is incorrect?

Options:

Support based onRESTquery request

WebHCatThe return data format isSML

WebHCatbased onHTTPandHTTPSAgreement to provide services to the outside world

able to passWebHCatCreate tables, query, etc.

Question 47

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

Options:

Krb5.conf

TGT

jaas.conf

Question 48

FusionInsight HDin, useStreamingThe command?way to submitexample.jarmiddleom huawei example.

WrodCounttask, task name iswcTeat, is the following execution command correct?

Options:

storm jar example jar wcTest om huawei example WordCount

storm jar example jar wcTest WrodCount

storm jar example jar om huawei example WordCount wcTest

storm jar example jar WorkCount wcTest

Question 49

FusionInsight HDofHive, user-definedUDFcan andHiveBuilt-inUDFduplicate name, in this case,

will use user-definedUDF.

Options:

True

False

Question 50

aboutRedisCluster topology information, is the following description correct?

Options:

The client caches the topology information of the cluster

The server caches the topology information of the cluster

both are

more than two

Question 51

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

Options:

mapandcombine

reduceandcombine

combineandsort

mapandreduce

Question 52

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

Options:

Client

Application Master

Executor

Driver

Question 53

FusionInsight HD in which ways can you viewOozieDebug results of the job? (multiple choice)

Options:

CheckOozieofJava APIWhether the returned result is as expected

pass throughHueofworkflowDashboard to view program running results

pass throughHue's file browser to see ifHDFSThe specified directory produces the expected file

Oozieself-containedWebThe interface can also view the job execution results

Question 54

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

Options:

lob

Context

FileSystem

Configuration

Question 55

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)

Options:

hive.exec.compress.intermediate

hive.intermediate.compression.codec

hive.exec.compress.output

twenty three

hive.intermediate.compression.type

Question 56

aboutFlumeWhich of the following descriptions is correct?

Options:

(1) data fromsourcearrivechannel;(2)sinkfromchannelfetch data

(1) data fromchannelarrivesource;(2)sinkfromsourcefetch data

(1) data fromsinkarrivechannel;(2)sourcefromchannelfetch data

(1) data fromchannelarrivesource;(2)sinkfromsourcefetch data

Question 57

Spark StreamingAs a micro-batch stream processing engine, it converts the data of each time slice into aRDDone of partitions are calculated.

Options:

True

False

twenty two

Question 58

HBasetablerowkeyDesign is a very important development and design link.

Options:

Name+Phone number

date+Phone number

Phone number+date

Phone number+Name

Question 59

FusionInsight HDWhich of the following belong toOozieofMapReduce Actionconfiguration item? (multiple choice)

Options:

name-node

source

mapred.mapper.class

job-tracker

Question 60

Which of the following options isYamcore functionality?

Options:

storage

Resource management

data transmission

Question 61

Oozieofworkflow.xmlfile is the workflow configuration file

Options:

True

False

Question 62

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 . )

Options:

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

oldAPIpass through21005access to a portTopicThe premise is: server parameters

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

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

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

Question 63

which come downRedisIs the command an atomic operation?

Options:

INCR(increment the stored digital value by one)

HINCRBY(for the hash tablekeydomain infieldvalue plus incrementincrement

LPUSH(for linked listspushoperate)

All of the above

Question 64

Hadoopin the systemYARNWhat resource types are supported for management?

(Multiple Choice)

Options:

Memory

CPU

Network

DiskSpace

Question 65

HDFSThe system time of the node where the client is located is the same as theFusionInsight HDThe system time of the cluster should be maintained

Consistent, if there is a time difference, then the time difference should be less than a few minutes?

Options:

Question 66

FusionInsigt HD which of the following components can be used for data collection? (multiple choice)

Options:

Flume

Loader

HBase

MapReduce

Question 67

FusionInsigt HDWhat distributed computing frameworks do big data platforms provide?

(multiple choice)

Options:

HBase

Sparkmemory-based distributed computing

MapReduceDistributed offline batch computing engine

StreamingDistributed stream computing engine

Question 68

FusionInsight HDsystem, aboutHiveofJDB, CInterface type, which of the following descriptions is correct?

Options:

In a network isolation environment,ZooKeeperofIPCan be configured as a businessIP, can also be configured to manageIP.

HiveUnlike traditional databases, soJDB, CThe established connection does not need to be closed.

In a secure cluster environment, establish andHiveBefore connecting, you need to use unified authentication to log in.

useJDB, CsubmitSQL, you canSQLA semicolon ";" is added after the statement.

Question 69

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

Options:

YARN

HDFS

Hive

HBase

Question 70

Hbase one of Region conduct Split When operating, place aHFileThe file is really separated into two RegionAt what stage does the process take place?

Options:

Splitin the process

Flushin the process

Compactionin the process

HFilein the process of separation

Question 71

existFusionInsight HDmiddle,SparkBy defaultYARNAs a cluster resource management system.

Options:

True

False

Question 72

FusionInsight HDin, belonging toStreamingWhat are the methods of data distribution? (multiple choice)

Options:

Shuffle Grouping

Field Grouping

Local Grouping

Direct Grouping

Question 73

FusionInsight HDin the platform,HBaseSecondary indexes are not currently supported.

Options:

True

False

Question 74

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?

Options:

fromSolr Adimin Ulinterface acquisition

existsdr-ecawnpletconftsolr-esamole-properts, has always defaulted to these two parameters

fromFuwnloninuight Manager SoService configuration interface acquisition

Question 75

A large-scale production enterprise plans to transform its internal logistics data and sales data into big data. The design department gives

Based on the analysis of the data storage scheme, which of the following statements are correct?

(multiple choice)

Options:

HBaseIt can store massive data and support dynamic expansion, which can fulfill the storage requirements of logistics and sales data.

HbaseIt supports efficient random reading, and can complete real-time analysis and command of the logistics situation through reasonable design.

Logistics data is very sparse,HBaseCan handle sparse data efficiently.

HBaseIt can be built on ordinary commercial servers, and the construction cost is relatively low.

Question 76

forHBase rowkeyThe design principles described below are correct? (multiple choice)

Options:

Attribute values with high access weight are placed inRowKeyFront

Attribute values with high access weight are placed inRowkeysecond half

Attribute values with good dispersion are placed inRowkeyfirst half

Attribute values with good dispersion are placed inRowkeysecond half

Question 77

existKafka, as follows aboutProducerWhat is wrong with the statement of sending data?

(multiple choice)

Options:

ProducerResponsible for production data,Consumerresponsible for consuming data,ProducerandConsumerneed between

EstablishSocketconnect

Producercan either send data toBroker, and can send data toConsumersuperiorProducer

As a message producer, you can directly write data toZooKeeper Producerconnect any normalBrokerInstances can produce data

Question 78

existHBaseIn table design, it is common to multiple businessesrowkey, what are the possible countermeasures for situations that lead to data access contradictions?

slightly? (multiple choice)

Options:

compromise method (rowkeyDesign takes into accountAandBbusiness needs)

Redundancy method (use space for time factory efficiency)

Create secondary index

pre-scoreregion

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HCIP-Big Data Developer V2.0 Questions and Answers

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