H13-723_V2.0 Exam Dumps - Huawei HCIP-Big Data Questions and Answers

True

False

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user definedUDFBefore being used, it needs to beHivecreate this in the systemUDonly

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

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

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

in the cluster1Create the account required for this application on theHBaseServe

in the cluster2created onAThe account with the same name in the options, and set this account to be able to access the cluster'sHiveServe

Aoptions andBThe account created by the option must belong tosupergroupGroup

cluster1and cluster2Complete the mutual trust operation

Build queuing systems, such as message queues

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

get latestNdata operations: for example, for a certain microblog, get the latest10comments

Simulate stack operations

existSolrCreate an index and save the data, and return all the data during full-text search.

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

When storing data, inSolrindex on theHBaseStore complete data? ? when, throughSolrFull-text search to obtain and record

record key information, through the key information inHBasefor the full record.

eachDataNodemaximum storage1copies.

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.

lines.flatMap(_.split(" ")).map(word =>(word,1)).reduce(_+_).print( )

lines.flatMap(_.split(" ")).map(word =>(word,word.length())).reduceByKey

(_+_).print( )

lines.flatMap(_.split(" ")).map(word =>(word,1)).reduceByKey(_+_).print

( )

lines.flatMap(_.split(" ")).flatmap(word =>(word,1)).groupByKey(_+_).print

( )

HBase

Hive

Spark

Redis

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False