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H13-723_V2.0
HCIP-Big Data Developer V2.0 Questions and Answers

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Viewing page 6 out of 11 pages

Viewing questions 76-90 out of questions

Questions # 76:

FusionInsight HDmiddle,OoziesupportHDFS Action.

Options:

True

False

Answer

Questions # 77:

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

Options:

low latency

Rich data structures

Support data persistence

supportSQLquery interface

Answer

A, B, C

Questions # 78:

The user wants to develop an application to accessHBaseservice, first apply for a machine accounttester1, and give it sets accessHBaseservice permissions; then download the account'skeytabfile, and use that account to run the application

use. Subsequent applications of this application will increase business requirements and require access toHiveservice, then givingtester1User additionally granted access

askHiveAfter the component permissions, you need to re-download the user'skeytabdocument.

Options:

True

False

Answer

Questions # 79:

HDFS"Write once, read many"__________File access model. Therefore, it is recommended that a document

Options:

After creating,

writing and closing,

do not modify it again.

right or wrong

Answer

Questions # 80:

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

Answer

B, C, D

Questions # 81:

Which of the following is notMapReducespecialty?

Options:

easy to program

good scalability

real-time computing

High fault tolerance

Answer

Questions # 82:

existMapReduceIn the development framework,InputFormatWhat is the function of the class?

Options:

mergemapThe result of the stage has the samekeyvalue key-value pair

put allmapThe results of the stages are merged to get the final result

rightmapThe results of the stages are sorted and merged

Split the input data into individualsplit, and willsplitfurther split intoyes, then asmapletter

input of numbers

Answer

Questions # 83:

existKafkain, aboutConsumerWhich statement is correct? (multiple choice)

Options:

ConsumerMainly for data consumption

ConsumerNeed to specify when consuming dataTopic

multipleConsumerconfigure the samegroup.idwhen theseConsumerConsumed data will not be duplicated

newConsumerAPIConsumption data does not need to be specifiedZooKeeperaddress

Answer

A, B, C, D

Questions # 84:

aboutstreamingdisaster recovery capability, which of the following statements is correct? (multiple choice)

Options:

SupervisorAfter the process exits, it can beNimbusAutomatically identify and pull up without affecting the running business

WorkerCan be used after abnormal exitsupervisorsPulls up automatically without manual intervention

When a node fails, the tasks on the node will be reassigned to other normal nodes without manual intervention

NimbusAfter the failure, the backupNimbusIt will take over automatically without affecting the running business

Answer

A, B, C, D

Questions # 85:

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

Options:

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

The number of missing blocks exceeds the threshold.

Lost replicas exceed the threshold.

The corrupted replica exceeds the threshold.

Answer

A, B

Questions # 86:

HDFSclient withNcopy toHDFSWhen writing a file, if one of the replicas fails to write, all replicas

will return write failure

Options:

True

False

Answer

Questions # 87:

HDFSIn application development of , which of the following areHDFSInterfaces supported by the service? (multiple choice)

Options:

BufferedOutputStream.write

BufferedOutputStream.flush

FileSystem.create

FileSystem.append

Answer

A, B, C, D

Questions # 88:

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

Answer

Questions # 89:

Suppose there is an application that needs to be accessed frequentlyOracleThe user table in the database, in order to improve performance, introduce

Redisto cache user information. For this scene,RedisWhich of the following is the best data structure choice for ?

Options:

List

Set

Hash

Sorted set

Answer

Questions # 90:

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