H13-723_V2.0問題集、Huawei実際の試験問題

質問 1

Suppose there is an application that needs to be accessed frequentlyOracleThe user table in the database, in order to improve performance, introduceRedisto cache users information.
For this scene,RedisWhich of the following is the best data structure choice for ?

A. list

B. set

C. hash

D. sorted set

正解: C

質問 2

FusionInsight HDsystem, aboutHiveWhich of the provided file formats is not a columnar file?

A. TextFile

B. CRC

C. Parquet

D. RCFile

正解: A

質問 3

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

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

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

C. rightmapThe results of the stages are sorted, merged,

D. Split the input data into individualsplit, and willsplitfurther split into<KEY,VALUE>right, then asmapinput to the function

正解: D

質問 4

FusionInsight HDin, aboutHive UDFsSecondary development, is the following description correct?
(multiple choice)

A. user definedUDF, information such as summary and status is not allowed.

B. user definedUDF, can be added according to the actual situationdeterministicandstatefuletc. Notes.

C. Under the secure cluster, user-definedUDF, it is recommended to create it once before each use.

D. user definedUDFBefore being used, it needs to beHivecreate this in the systemUDF.

正解: B,D

質問 5

HDFSRuntime,NameNodewill load all the metadata of the file system from disk into memory, so the file system can The total number of files stored is limited byNameNodememory capacity.

A. True

B. False

正解: A

質問 6

SparkWhat kind of parameter setting methods does the application have? (multiple choice)

A. In the application code, passSparkConfobject to set

B. in the application configuration filespark-defaults.confconfigure in

C. When submitting your application, by-confmake settings

D. In the application code, passSparkContextofsetPropertymethod to set

正解: A,B,C

質問 7

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

A. twoworkerone of theworkerdistribute two

B. no fixed rules

C. twoworkerone for each

正解: C

質問 8

pass throughHBaseofcreateTableThe method creates a table, what parameters must be passed in?

A. table names and columns

B. Table Name

C. can be empty

D. Table names and column families(or table name andfamily)

正解: D

質問 9

HDFSWhich of the following business scenarios is not applicable to?

A. Mass data storage

B. Streaming file storage

C. Lots of small file storage

D. large file storage

正解: C

質問 10

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

A. broadcast variable viaSparkContext.broadcast() method to generate

B. broadcast variable in everyTasksave a copy

C. broadcast variable in eachExecutorsave a copy

D. Broadcast variables are read-only

正解: A,C,D

質問 11

existFusionInsight HDmiddle,FumeWhich of the following are supportedsourceTypes of? (multiple choice)

A. HBase

B. Kafka

C. H

D. Avro

正解: B,C,D

質問 12

In the online log query scheme, adopted? processing to complete the calculation work. During the whole calculation process, the intermediate calculation results need to be For temporary storage, which of the following components are suitable for storing intermediate calculation results? (multiple choice)

A. Redis

B. HBase

C. Kafka

D. HDfS

正解: A,C

質問 13

existHBaseWhich of the following interfaces or classes does not need to be involved in the implementation of business logic for writing data?

A. Put

B. PutList

C. HTable

D. HBaseAdmin

正解: D

Huawei HCIP-Big Data Developer V2.0 - H13-723_V2.0 模擬練習