السؤال #1

Which of the following is notMapReducespecialty?

A. easy to program

B. good scalability

C. real-time computing

D. High fault tolerance

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اجابة صحيحة: C

السؤال #2

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?

A. supportCSVandJSON

B. supportCSV,JSONandHTML

C. supportCSV,JSONandXML

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اجابة صحيحة: B

السؤال #3

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

A. Streaming data monitoring

B. Real-time visit statistics of the website

C. Offline log analysis

D. Traffic flow analysis

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اجابة صحيحة: ABD

السؤال #4

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

A. rue

B. alse

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اجابة صحيحة: A

السؤال #5

Suppose there is an application that needs to frequently access the user table in the Oracle database. In order to improve performance, Redis is introduced to cache user information.For this scenario, which of the following is the best data structure choice for Redis?

A. et

B. ash

C. ist

D. orted set

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اجابة صحيحة: B

السؤال #6

In FusionInsigt HD, an application deployed on Tomcat needs to access the HBase service. In this scenario, it is recommended to use a machine-to-machine account.

A. rue

B. alse

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اجابة صحيحة: A

السؤال #7

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

A. Only the HMI account can be used

B. Only the machine account can be used

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

D. 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

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اجابة صحيحة: ABC

السؤال #8

For files stored in N (N>1) copies, the HDFS client initiates a file read request. If the read copy node fails, it will directly return to failure and will not go to other copy nodes for reading.

A. rue

B. alse

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اجابة صحيحة: B

السؤال #9

Which of the following methods can generateDStreamobject?

A. KafkaUtils

B. KafkaUtils

C. StreamingContext

D. StreamingContext

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اجابة صحيحة: ABCD

السؤال #10

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

A. split

B. combine

C. partition

D. sort

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اجابة صحيحة: A

السؤال #11

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

A. mergemapThe result of the stage has the samekeyvalue key-value pair

B. put allmapThe results of the stages are merged to get the final result

C. rightmapThe results of the stages are sorted and merged

D. Split the input data into individualsplit, and willsplitfurther split intoyes, then asmapletter input of numbers

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اجابة صحيحة: D

السؤال #12

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

A. AmergemapThe result of the stage has the samekeyvalue key-value pair

B. Bput allmapThe results of the stages are merged to get the final result

C. CrightmapThe results of the stages are sorted, merged,

D. DSplit the input data into individualsplit, and willsplitfurther split intoright, then asmapinput to the function

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اجابة صحيحة: D

السؤال #13

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

A. HBase

B. Hive

C. Spark

D. Redis

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اجابة صحيحة: BC

السؤال #14

Set the block storage size to128M,HDFSWhen the client is writing a file, when writing a100Msize file, real.How much storage space does it take up?

A. 128M

B. 100M

C. 64M

D. 50M

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اجابة صحيحة: B

السؤال #15

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

A. pre-scoreregion,MakeregionEvenly distributed, improve concurrency

B. Query frequent attributes are placed inrowkeyThe front part

C. Use secondary indexes to adapt to more query scenarios

D. Data read at the same time are stored in the samecellmiddle

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اجابة صحيحة: ABCD

السؤال #16

When a task is submitted toYARNIn the cluster, which of the following options will generate for this taskTindivual JOPO

A. ResourceManager

B. container

C. AppMaster

D. NodeManager

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اجابة صحيحة: B

السؤال #17

Suppose there is an application that needs to frequently access the user table in the Oracle database. In order to improve performance, Redis is introduced to cache user information.For this scenario, which of the following is the best data structure choice for Redis?

A. et

B. ash

C. ist

D. orted set

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اجابة صحيحة: B

السؤال #18

There are scenarios where 500G of new data is generated by the online system every day, and these data need to be statistically summarized in dimensions such as days, weeks, and months.Which table is suitable for Hive processing?

A. ilt table, select the date in the tilt field, and the tilt value is random

B. artition table, partition by day

C. ucket table, according to talent

D. artition + bucket table, partitioned by time, 2560 buckets per partition

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اجابة صحيحة: B

السؤال #19

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

A. to emit

B. execute

C. open

D. nextTuple

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اجابة صحيحة: B

السؤال #20

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

A. lob

B. Context

C. FileSystem

D. Configuration

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اجابة صحيحة: A

السؤال #21

Fusionlnsiht HDmiddle,Oozieclient'sJava APIwill be called when the task is runOozieClientWhich method of the class?

A. suspend

B. getJoblnfo

C. submit

D. run

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اجابة صحيحة: D

السؤال #22

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

A. Split

B. combine

C. partition

D. sort

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اجابة صحيحة: A

السؤال #23

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

A. NodeManager

B. Resource Manager

C. Data Node

D. NameNode

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اجابة صحيحة: A

السؤال #24

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

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

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

C. user definedUDF, can be added according to the actual situationdeterministicandstatefulletc

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

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اجابة صحيحة: AC

السؤال #25

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

A. Put

B. HTable

C. HBaseAdmin

D. PutList

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اجابة صحيحة: C

السؤال #26

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

A. Table Name

B. table names and columns

C. Table names and column families

D. can be empty

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اجابة صحيحة: C

السؤال #27

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

A. Amapandcombine

B. Breduceandcombine

C. Ccombineandsort

D. Dmapandreduce

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اجابة صحيحة: D

السؤال #28

HDFSclient withNWhen a copy writes a file, which of the following is true about the writing process? (multiple choice)

A. eachDataNodemaximum storage1copies

B. Support multiple users to write to the same file at the same time

C. The first copy of the data block is placed preferentially on the node where the client writing the data block is located

D. Copied file blocks all exist on the same rack by default

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اجابة صحيحة: AC

السؤال #29

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

A. hdfs fsck /test

B. hdfs fsck /text

C. hdfs fsck /test

D. hdfs fsck /test

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اجابة صحيحة: B

السؤال #30

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

A. Streaming data monitoring

B. Real-time visit statistics of the website

C. Offline log analysis

D. Traffic flow analysis

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اجابة صحيحة: ABD

السؤال #31

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

A. mapandcombine

B. reduceandcombine

C. combineandsort

D. mapandreduce

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اجابة صحيحة: D

السؤال #32

forFusionInsight HDplatformHBaseComponent, which properties of the secondary index need to be defined to add a secondary index? (multiple choice)

A. index name

B. index column

C. index column type

D. The name of the column family to which the indexed column belongs

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اجابة صحيحة: ABCD

السؤال #33

aboutStreamingdisaster recovery capability, which of the following statements is correct? (multiple choice)

A. SupervisorAfter the process exits, it can beNimbusAutomatically identify and pull up without affecting running business

B. WorkerCan be used after abnormal exitSupervisorPulls up automatically without manual intervention

C. When a node fails, the tasks on the node will be reassigned to other normal nodes without manual intervention

D. NimbusAfter the failure, the backupNimbusIt will take over automatically without affecting the running business

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اجابة صحيحة: ABCD

السؤال #34

existFlumeDuring cascaded transfers, you can usefail overmode transfer, so that if the next hop isFlumenode failure orWhen the data is received abnormally, it can automatically switch to another way to continue transmission.

A. True

B. False

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اجابة صحيحة: A

السؤال #35

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

A. Both are available externallySQLor classSQLability

B. Both can run onMapReduceon the computational framework

C. Both are available via table fields andHBaseAccess by field mappingHBasedata on

D. Both can run onSparkon the computational framework

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اجابة صحيحة: ACD

السؤال #36

which come downRedisIs the command an atomic operation?

A. AINCR(aThe stored digital value is incremented by one)(DECR)

B. BHOY(eesurfacekeydomain infieldvalue plus incrementincrement)

C. CUURH(MRnpuhoperate)

D. DAll of the above

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اجابة صحيحة: ABCD

السؤال #37

which is notflumeofchannelTypes of?

A. Memory Channel

B. File Channel

C. JDB, C Channel

D. HDFS Channel

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اجابة صحيحة: D

السؤال #38

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

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

B. Topologywill run until it is explicitlykill

C. Business logic is encapsulatedTopologymiddle

D. OneTopologyOnly one can be specified to startWorkerprocess

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اجابة صحيحة: D

السؤال #39

existFusionInsight HDin the cluster,FlumeWhich service does not support writing collected data to the cluster?

A. HDFS

B. HBase

C. Kafka

D. Redis

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اجابة صحيحة: D

السؤال #40

In FusionInsight HD, the Streaming packaging tool is used to package the business code jar package and other dependent jar packages into a complete Streaming application jar package

A. rue

B. alse

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اجابة صحيحة: A

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