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examout.co

FusionInsight HDin, useStreamingofLinuxWhen submitting a topology in command line mode, you need to first use an ownStreamingUser with submit permissionkinitway authentication

A.

True

B.

False

existSparkmiddle,SparksQLis an independent module that does not depend onSparkCorefinish independentlySQL Actions such as the corner line of the statement.

A.

True

B.

False

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

(multiple choice)

A.

Active and standbyNameNodeThe disk space where the metadata is located is insufficient.

B.

The number of missing blocks on the port exceeds the threshold.

C.

The missing copies of the port exceed the threshold.

D.

The corrupted copy exceeds the threshold.

Below aboutZooKeeperThe statement is wrong ().

A.

If ZooKeeperIf there is an interruption in the process of synchronizing the message, after the failure is recovered, the transmission status before the failure can be adjusted according to the the state continues to synchronize, that is, support for resuming transmission from a breakpoint.

B.

ZooKeeperUse a custom atomic message protocol to ensure the consistency of node data in the entire system.

C.

ZooKeeperThe cluster is elected at startupLeaderRole.

D.

LeaderAfter a node receives a data change request, it first writes to disk and then writes to memory.

Which of the following application scenarios mainly generate unstructured data?

(multiple choice)

A.

CRMcustomer relationship management business

B.

Seismic Mapping Analysis Business

C.

Taobao online payment service

D.

Financial Bill Imaging Service

FusionInsight HDin, belonging toStreamingWhat are the methods of data distribution?

(multiple choice)

A.

mouthShuffle Groupingrandom grouping

B.

mouthField Groupingfield grouping

C.

mouthLocal Groupinglocal grouping

D.

mouthDirect Groupingdirect grouping

implementHBaseWhat parts of the data need to be read for the data read service?

(multiple choice)

A.

HFile

B.

HLog

C.

MemStore

D.

HMaster

existSolrWhen indexing, which of the following code snippets can significantly improve indexing performance? (multiple choice)

A.

mouthIbClient.setRequestWriter(new BinaryRequestWriterO);

B.

mouthif(updateRequest.getDocumentsMapO.size)>=10000){

cloudSolrClient.request(updateRequest,collName);updateRequest.clear);

C.

mouthif(updateRequest.getDocuments).size(O>=1000){

D.

cloudSolrClient.request(updateRequest,collName);updateRequest.clearO;

S8tW9H2xgntdc=new SolrInputDocument);

doc.addField("id",i.tostring( )doc.addField("name", "Zhang San4i);

doc.addField("features","test"+i):

doc.addreldc"price, (float)*1.oi);

cloudSolrClient.add(doc);

cloudSolrClient.commitO:

FusionInsight HDin, aboutOoziejob management for suspended jobs

Which of the following operations? (multiple choice)

A.

mouthkill

B.

mouthrun

C.

mouthresume(wake)

D.

mouthsubmit

existSpark, assuminglinesIs anDStreamobject,filterStatements can be filtered out80%the number of

According to the following two sentences, the law is correct:X:lines.filter( ).groupByKey(.)Y:

lines.groupByKey( ).filter( )

A.

X is more performant than Y

B.

X is less performant than Y

C.

X and Y are the same as performance

D.

Uncertainty about the performance difference between X and Y

aboutFusionInsight HDplatformHiveservice, itsWebHCatDevelopment interface, the following description does not the correct one is?

A.

Support based onRESTquery request

B.

WebHCatThe return data format isXML

C.

WebHCatbased onHTTPandHTTPSAgreement to provide services to the outside world

D.

able to passWebHCatCreate tables, query, etc.

FusionInsightHD which components are provided externallySQLor classSQLability? (multiple choice)

A.

mouthHBase

B.

mouthHive

C.

mouthSpark

D.

mouthRedis

which is notflumeofchannelTypes of?

A.

Memory Channel

B.

File Channel

C.

JDB, C Channel

D.

HDFS Channel

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

which come downRedisIs the command an atomic operation?

A.

INCR(aThe stored digital value is incremented by one)(DECR)

B.

HOY(eesurfacekeydomain infieldvalue plus incrementincrement)

C.

UURH(MRnpuhoperate)

D.

All of the above