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

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Questions # 31:

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:

True

False

Expert Solution

Questions # 32:

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

Options:

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

The number of missing blocks exceeds the read value.

Lost copies exceed read value.

The corrupted copy exceeds the threshold.

Expert Solution

Questions # 33:

existHBaseIn application development, when a table'sRowkeyRange and distribution are known, pre-score is recommendedregion,

Please call the following code (fragment) to pre-sort a tableregionAfter this table will create severalregion?

//Create a pre-partitionregionthe tablebyte【】I splits = new byte【4];splits【0】=Bytes.toBytes

("A");splits【1】=Bytes.toBytes("H");splits【2】=Bytes.toBytes("O");splits

【3】=Bytes.toBytes("U");admin.createTable(htd,splits);

Options:

Expert Solution

Questions # 34:

existFusionInsight HDproduct,KafkaWhat is the role name of the service?

Options:

Producer

Broker

Consumer

ZooKeeper

Expert Solution

Questions # 35:

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 on the port exceeds the threshold.

The missing copies of the port exceed the threshold.

The corrupted copy exceeds the threshold.

Expert Solution

Questions # 36:

A project needs to count the Internet access in a certain area and the serious crime in the area. Please make it clear that Nanyao teaches Huajin that it needs to be preserved, and fully check this

Are there sensitive information in these Internet records for pre-optimal solutions?

Options:

existsorCreate an index on the database, save the data, and return all the data when the full text is checked.

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

When storing data, inSolrOn the construction of information, through the customs messenger is on the electricity, if the lack of quality, Wan Mo dad will put the complete data,

When querying, bysorFull-text search to obtain record key

Expert Solution

Questions # 37:

RedisofLISTData structure (multiple choice) Which scenarios?

Options:

Build queuing systems, such as message queues

uniq operations, such as getting the ranking value of all data in a certain period of time

Get the latest N data operations: For example, for a Weibo, get the latest 10 comments,

Simulate stack operations

Expert Solution

Questions # 38:

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, merged,

Split the input data into individualsplit, and willsplitfurther split intoright, then asmapinput to the function

Expert Solution

Questions # 39:

scountryonnsgtHDWhen developing applications with a secure version, you can usekeytabfile forKerberosinstall

Fully certified.

Options:

True

False

Expert Solution

Questions # 40:

FusionInsightHD which components are provided externallySQLor classSQLability? (multiple choice)

Options:

mouthHBase

mouthHive

mouthSpark

mouthRedis

Expert Solution

Questions # 41:

FusionInsight HD assuming a topology that setsspoutConcurrency is3,bot1Concurrency is 2,bot2Concurrency is3,workerThe number is2,Sobol1ofexecutorexistworkerHow is it distributed?

Options:

twoworkerone of theworkerdistribute two

twoworkerone for each

no fixed rules

Expert Solution

Questions # 42:

existMapReduceDuring application development,setMapOutputCompressorClassWhat is the role of classes?

Options:

set upmapinput compression method

set upmapHow the output is delivered

set upmapoutput compression method

set upreduceoutput compression method

Expert Solution

Questions # 43:

FusionInsight HDmiddle,Oozieclient'sJava APIwill be called when the task is run

OozieClientWhich method of the class?

Options:

suspend

getJobInfo

submit

Run

Expert Solution

Questions # 44:

aboutFlumeThe characteristics of the collected data, which of the following descriptions are correct?

Options:

Supports distributed and streaming acquisition

with the help ofMapReducetask parallel collection

Only structured data can be collected

Trigger data collection with external timing tasks

Expert Solution

Questions # 45:

RDDavailable fromHadoopCompatible file system generation, after generation, it can be generated by callingRDDcalculation child pairRDDThe data is partially updated.

Options:

True

False

Expert Solution

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