Huawei H13-711_V3.0 Exam Practice Test Instant Access

Question 1

About HDFSThe function of the NameNode, which one of the following descriptions is wrong?

Afor storing metadata

BSave the mapping relationship between file blocks and DataNodes

CMaintenanceThe mapping relationship between Block ID and DataNode local file

DStore file content

Answer : C, D

Question 2

AboutHDFSdataFinishIntegrity guarantee, which of the following mechanisms isMistakeof?

ASectionPoint higher performance DataNodemore data will be stored

BThe log mechanism is used to operate the metadata, and the metadata is stored on the active and standby NanoNodes.

CThe snapshot mechanism implements the file systemas usualSee the snapshot mechanism to ensure that data can be recovered in time when misoperation occurs

DDataNode to NameNode periodic reportFailTask,NameNodeinitiateviceThis rebuild action to restore lostcopy

Answer : A

Question 3

In big data computing tasks, aboutI0Which of the following is an incorrect description of an intensive task?

ACHigh PU consumption

BI0During intensive task execution, most of the time is spent in I0deal with

CBy improving network transmission efficiency and read and write efficiency, performance can be greatly improved

DThe more tasks, the more efficient the CPU

Answer : A

Question 4

Redis adopts a non-central self-organizing structure. Nodes use the Gossip protocol to exchange node status information.

ATRUE

BFALSE

Answer : A

Question 5

The following offin Kafka messagesWhich one of the speed transmission methods is still correct?

APostingonesubscriptioninformationsystem, the sameNumber of barsData can be consumed by multiple consumers. data isConsumptionnot laterdelete immediately

BDistributed Messaginghand overThere are two mainwantofmessage passing pattern,peer to peertransferpattern, haircloth-subscription model

Cpoint-to-pointinformation systemmedium, cancanhave multiple consumptionsat the same timeremovefeedata, becauseThis does not guarantee the order in which data is processed.

DIn a point-to-point messaging system, when a messagefeeByremovefeeteamone of the columnsdataAfter that, thedata rulefromdelete from message queue

Answer : C

Question 6

HDFSIs andeploypoints on the clusterclothfile system, becausethis,many numbersaccording toneedPassover gridEnterRowtransmission,the following aboutCommunication of HDFS?Which one of the protocol descriptions is wrong??

ABetween name node and number nodebutInteract using the NameNode protocol

BClientwith data nodesinteraction ispass throughMPCto achieve

CallHDFS communication protocol isbuilt onBased on TCP/IP protocol

DThe name node will not initiate the initiativeRPC, butringshould come from customerendandRPC requests for data nodes

Answer : A

Question 7

The client is a user operationHDFSThe most common way. the following aboutHDFSThe description of the client issureyeswhich?

Acustomerendis HDFSpart of isDeploy HDFSmustGrouppiece

BHDFS guestThe client provides something likeshe 11'sOrderVisit by wayAsk HDFSnumber inaccording to

CHDFSThe client is a library,IncludeHDFS filePartssysteminterface, thesecatchmouth hiddenHDFSMost of the complex in the implementationmiscellaneoussex

Dcustomerendcan support opening,Common operations such as read and write

Answer : B, C, D

Huawei H13-711_V3.0 HCIA-Big Data V3.0 Exam Practice Test