Huawei H13-723_V2.0 Exam Questions Free Practice Test

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Questions # 61:

useFusionInsight HDofHiveQuery data, when the intermediate result of the query has a large amount of data, You can choose to compress the intermediate result data for better performance. Which of the following areHiveCorrelation of intermediate result compression parameter? (multiple choice)

Options:

hive.exec.compress.intermediate (middle)

hive.intermediate.compression.codec

hive.exec.compress.output

hive.intermediate.compression.type

Expert Solution

Questions # 62:

FusionInsigt HDWhat distributed computing frameworks do big data platforms provide?

(multiple choice)

Options:

HBase

Sparkmemory-based distributed computing

MapReduceDistributed offline batch computing engine

StreamingDistributed stream computing engine

Expert Solution

Questions # 63:

HDFSclient withNWhen a copy writes a file, which of the following is true about the writing process?

(multiple choice)

Options:

eachDataNodemaximum storage1copy.

Support multiple users to write to the same file at the same time.

The first copy of the data block is placed preferentially on the node where the client writing the data block is located.

Copied file blocks all exist on the same rack by default.

Expert Solution

Questions # 64:

SparkWhat kind of parameter setting methods does the application have?

(multiple choice)

Options:

In the application configuration filespark-defaults.confconfigure in

When submitting your application, pass--confmake settings

In the application code, passSparkContextofsetPropertymethod to set

In the application code, passSparkConfobject to set

Expert Solution

Questions # 65:

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

Options:

Produceris a message producer

ProducerProduction data needs to be specifiedTopic

Can play multiple at the same timeProducerprocess to the sameTopicsend data

ProducerNeed to connect first when producing dataZooKeeper, and then connectBroker

Expert Solution

Questions # 66:

existSpark, which of the following statements about broadcast variables is correct?

Options:

broadcast variable in everyTasksave a copy

broadcast variable in eachExecutorsave a copy

Broadcast variables are read-only

broadcast variable viaSparkContext.broadcast() method to generate

Expert Solution

Questions # 67:

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

(multiple choice)

Options:

Active and standbyNameNodeof metadata is running out of disk space.

The number of missing blocks exceeds the threshold.

Lost replicas exceed the threshold.

The corrupted copy exceeds the threshold.

Expert Solution

Questions # 68:

aboutStreamingthe topology (Topology), which of the following descriptions is wrong?

Options:

OneTopologyis made up of a group ofSpoutcomponents andBotcomponents passStream GroupingsA connected directed acyclic graph (DAG)

Topologywill run until it is explicitlykill

Business logic is encapsulated inTopologymiddle

OneTopologyOnly one can be specified to startWorkerprocess

Expert Solution

Questions # 69:

FusionInsight ManagerRegarding the management operations of services, which of the following statements is wrong?

Options:

Can start, stop and restart the service

Services can be added and uninstalled.

Uncommon services can be set to hide or show

Can view the current status of the service

Expert Solution

Questions # 70:

FusionInsightHD which components are provided externallySQLor classSQLability?

(multiple choice)

Options:

HBase

Hive

Spark

Redis

Expert Solution

Questions # 71:

due toSparkis a memory-based computing engine, therefore, aSparkThe amount of data the app can handle Can't give more than thisSparkThe total memory of the application.

Options:

True

False

Expert Solution

Questions # 72:

forHBase rowkeyThe design principles described below are correct?

(multiple choice)

Options:

Attribute values with high access weight are placed inRowKeyFront

Attribute values with high access weight are placed inRowkeysecond half

Attribute values with good dispersion are placed inRowkeyfirst half

Attribute values with good dispersion are placed inRowkeysecond half

Expert Solution

Questions # 73:

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

Options:

to emit

execute

open

nextTuple

Expert Solution

Questions # 74:

Kerberossafety certificate.

Options:

True

False

Expert Solution

Questions # 75:

HBaseFilters can set column names or column values as filter conditions, and support the use of multiple filters at the same time.

Options:

True

False

Expert Solution

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