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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.

An application requires simultaneous and twoFusionInsightsCluster interaction: both need to access the cluster1ofHBaseservice, need to visit

Ask the cluster2ofHiveServe;

So which of the following operations are required? (multiple choice)

A.

in the cluster1Create the account required for this application on theHBaseServe

B.

in the cluster2created onAThe account with the same name in the options, and set this account to be able to access the cluster'sHiveServe

C.

Aoptions andBThe account created by the option must belong tosupergroupGroup

D.

cluster1and cluster2Complete the mutual trust operation

FusionInsight HDofHiveIn the application, there are the following scenarios: ? ? ? Is there a higher storage file? ? 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.

A.

True

B.

False

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

A.

to emit

B.

execute

C.

open

D.

nextTuple

Suppose there is an application with10Tables, each table has tens of millions of records, and the number of fields is about20indivual.

Currently usingRedisto cache this10The data of a table, the design of its data structure, which of the following is the best design?

A.

usehashstructure, and a table uses ahash key, a row in the table records forhash keyone offield.

B.

usehashstructure, each row record of each table uses onehash key,hash keyoffieldThe fields of the corresponding table records,

and designKEYEach table adds a different prefix to distinguish it.

C.

usestringstructure, each field of each row record of each table uses oneKEY.

D.

usestringstructure, each row record of each table uses oneKEY,valueAll fields recorded for a row in a table? ? back

value of .

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

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

machine account.

A.

True

B.

False

aboutRedisFeatures, the following description is correct? (multiple choice)

A.

low latency

B.

Rich data structures

C.

Support data persistence

D.

supportSQLquery interface

FusionInsight HDmiddle,OozieBefore submitting the job, you need to upload the configuration files andjarpackage toHDFS

A.

True

B.

False

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

operations such as transformation and execution.

A.

True

B.

False

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

A.

Shuffle Grouping

B.

Field Grouping

C.

Local Grouping

D.

Direct Grouping

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

will use user-definedUDF.

A.

True

B.

False

FusionInsight HDsystem, aboutHiveWhich of the provided file formats is not a columnar file?

A.

CRC

B.

Parquet

C.

RCFile

D.

TextFile

A.

Spark

B.

Streaming

C.

MapReduce

D.

HDFS

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

A.

CheckOozieofJava APIWhether the returned result is as expected

B.

pass throughHueofworkflowDashboard to view program running results

C.

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

D.

Oozieself-containedWebThe interface can also view the job execution results