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existFusionInsight HDin, useSparkSQL, which of the following methods (or tools) can be used to performSQLstatement?

(multiple choice)

A.

JDB, C

B.

spark-beeline

C.

spark-sql

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

A.

split

B.

combine

C.

partition

D.

sort

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)

A.

hive.exec.compress.intermediate

B.

hive.intermediate.compression.codec

C.

hive.exec.compress.output

D.

hive.intermediate.compression.type

FusionInsight HDWhat are the supported ways to submitOozieOperation? (multiple choice)

A.

ShellOrder

B.

Java API

C.

Hue UI

D.

Rest API

FusionInsight HDin, aboutOoze, which of the following operations can be performed on a suspended job? (many

select)

A.

kill

B.

run

C.

resume

D.

submit

aboutKafkaofPeoducer, is the following statement correct? (multiple choice)

A.

Produceris a message producer

B.

ProducerProduction data needs to be specifiedTopic

C.

Can play multiple at the same timeProducerprocess to the sameTopicsend data

D.

ProducerNeed to connect first when producing dataZooKeeper, and then connectBroker

HDFSIt adopts a "write once, read many" file access model. So it is recommended that a file be created, written and

After closing, do not modify it again.

A.

True

B.

False

existHBaseWhile the application is running, the application can write data while creating the table.

A.

True

B.

False

HDFSRuntime,NameNodewill load the entire metadata of the file system from disk into memory, so the file system

The total number of files that can be stored is limited byNameNodememory capacity.

A.

True

B.

False

existSpark, assuminglinesIs anDStreamobject, which of the following statements can periodically count this number of words on a stream?

A.

lines.flatMap(_.split(" ")).map(word =>(word,1)).reduce(_+_).print( )

B.

lines.flatMap(_.split(" ")).map(word =>(word,word.length())).reduceByKey

(_+_).print( )

C.

lines.flatMap(_.split(" ")).map(word =>(word,1)).reduceByKey(_+_).print

( )

D.

lines.flatMap(_.split(" ")).flatmap(word =>(word,1)).groupByKey(_+_).print

( )

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

A.

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

connect

B.

Producercan either send data toBroker, and can send data toConsumersuperior

C.

ProducerAs a message producer, you can directly write data toZooKeeper

D.

Producerconnect any normalBrokerInstances can produce data

aboutSolrThe response format of the query result, which of the following statements is wrong?

A.

supportCSVandJSON

B.

supportCSV,JSONandHTML

C.

supportCSV,JSONandXML

RDDasSparkThe core object, which has the following characteristics? (multiple choice)

A.

read only

B.

partition

C.

fault tolerance

D.

efficient

Does a project require Internet access to a certain area? ? Save and search the full text of these Internet records? ? information, with

to prevent crime in the region.

In this scenario, which of the following options is the best?

A.

existSolrCreate an index and save the data, and return all the data during full-text search.

B.

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

C.

When storing data, inSolrindex on theHBaseStore complete data? ? when, throughSolrFull-text search to obtain and record

record key information, through the key information inHBasefor the full record.

Fusioninsight HDin, yessolrThe creation and read and write permissions of various resources are applicable. Which of the following statements is wrong?

A.

SolrUser group users can create configuration sets and createcollectionis to specify the configuration set

B.

SolrUsers of the user group can createcollection

Collectioncreator, thecollectionroles with read and write permissions andsolr adminrole can be

C.

collectionmake an update

D.

onlycollectioncreator andsolr adminRoles can be deletedcollection