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Viewing page 9 out of 11 pages
Viewing questions 121-135 out of questions
Questions # 121:

Which of the following components must depend onZooKeeperto run()?

(multiple choice)

Options:

A.

HDFS

B.

HBase

C.

Spark

D.

YARN(streaming)

Questions # 122:

which come downRedisIs the command an atomic operation?

Options:

A.

INCR(increment the stored digital value by one)

B.

HINCRBY(for the hash tablekeydomain infieldvalue plus incrementincrement)

C.

LPUSH(for linked listspushoperate)

D.

All of the above

Questions # 123:

FusionInsight HDsystem, aboutHiveofJDB, CInterface type, which of the following descriptions is correct of?

Options:

A.

In a network isolation environment,ZooKeeperofIPCan be configured as a businessIP, can also be configured to manageIP.

B.

hiveUnlike traditional databases, soJDB, CThe established connection does not need to be closed.

C.

In a secure cluster environment, establish andHiveBefore connecting, you need to use unified authentication to log in.

D.

useJDB, CsubmitSQL, you canSQLPut a semicolon after the statement";"

Questions # 124:

HadoonIn the system: ifHDFSThe backup factor of the file system is3,SoMapReduceevery time

In progresstaskall from3The segment of the file that needs to be processed is transmitted on a machine with a replica.

Options:

A.

True

B.

False

Questions # 125:

Fusionmnsight HDproductSoDuring application development, you canSolr Admin UIxrightCollection

One-shot verification is performed. Draw aboutSolr AdminUIIs the statement correct? (multiple choice)

Options:

A.

Click Tree under Cloud to view metadata such as Collections, configuration sets, and ive nodes in Solr loud information

B.

Click Cloud to view the Replica distribution and status of each Shard under each Collection

C.

Enter the Core Oveview interface where Calectiopeyshard Replicaf is installed, and you can view the Replca index Real Qunwen You Department relies on storing size and location information

D.

Users of the Sor user group, Solr admin role, and Super group can access the Solr Admin UI

Questions # 126:

existSparkIn application development, which of the following codes can correctly count words?

Options:

A.

rval counts = textFile.map(line => line.split("")).map(word =>(word,

1)).reduceByKey(+)

B.

val counts = textFile.flatMap(line => line.split(")).map(word =>(word,

1)).reduceByKey(+)

C.

vrval counts = textFie.map(line => line.split(")).map(word =>(word,

1)).groupByKey( )

D.

vrval counts = textFile.flatMap(line => line.split("")).map(word =>(word,

1)).groupByKey( )

Questions # 127:

for running onMapRestoeThe application on the platform, on which this application is basedjarpackage is placed where?

Options:

A.

HIVE

B.

HBASE

C.

HDFS

D.

DB

Questions # 128:

Spark Streamingavailable fromKafkaReceive data and perform calculations, and the calculation results can only be stored inHDFS,

can't write backKafka.

Options:

A.

True

B.

False

Questions # 129:

Fasionlrnight HD Heenein the group,Table1GenusFNamespacel,Table2GenusFNamespace2,

Table1there are two1columns, respectivelyRdf11.df12,TablezThere is a column home namedf21, then which of the following

user account9AAt the same time have|ef18d21oftwrite rights. (multiple choice)

Options:

A.

Give this user accountglobelread permission

B.

Give this user accountNamespace1read and write permissions

C.

Give this user accountTable1andTable2read and write permissions

D.

Give wave user accountNamespace1andNamespace2read and write permissions,

Questions # 130:

TowardsHBaseincrease in the clusterRegionServerhost, the original cluster must be stopped first, becauseHBase Dynamic expansion is not supported.

Options:

A.

True

B.

False

Questions # 131:

HDFSIt adopts a "write once, read many" file access model. Therefore, it is recommended that a document

After creating and writing the profit, do not modify it again.

Options:

A.

True

B.

False

Questions # 132:

existFusionInsight HDcluster, aboutkinitOperation command, which of the following statements is wrong? (many select)

Options:

A.

Only use HMI account.

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.

Questions # 133:

forHBase rowkeyThe design principles described below are correct? (multiple choice)

Options:

A.

Attribute values with high port access weights are placed inRowKeyFront

B.

Attribute values with high port access weights are placed inRowkeysecond half

C.

The attribute value with good dispersion is placed inRowkeyfirst half

D.

The attribute value with good dispersion is placed inRowkeysecond half

Questions # 134:

Which of the following causesHDFSofNameNodeEntersafemode(install"aroot form)? (multiple choice)

Options:

A.

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

B.

The number of missing blocks exceeds the read value.

C.

Lost copies exceed read value.

D.

The corrupted copy exceeds the threshold.

Questions # 135:

Which of the following descriptions about massive small file storage is correct ( )?

(multiple choice)

Options:

A.

HDFSStoring a large number of small files will giveNameNodebring great pressure.

B.

HBaseStore a large number of small files,Compactionwill bringIOWaste of resources.

C.

HuaweiHFSIt is suitable for storing a large number of small files, and files can be selectively stored inHDFSorMOBmiddle.

D.

The above statement is not correct.

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Viewing questions 121-135 out of questions
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