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Huawei H13-723_V2.0 Exam Syllabus Topics:

Huawei HCIP-Big Data Developer V2.0 Sample Questions:

Question 1

existSolrWhen indexing, which of the following code snippets can significantly improve indexing performance? (multiple choice)

A. if(updateRequest.getDocuments( ).size( )>= 1000){
cloudSolrClient.request(updateRequest,collName);updateRequest.clear();}
B. SolrInputDocument doc = new SolrInputDocument();doc.addField("id",i.toString ());doc.addField("name", "Zhang San"+ i);doc.addField("features","test"+ i);doc.addField ("price", (float)i*1.01);cloudSolrClient.add(doc);cloudSolrClient.commit();
C. IbClient.setRequestWriter(new BinaryRequestWriter())
D. if(updateRequest.getDocumentsMap(O.size( )>= 10000)cloudSolClient.request (updateRequest,collName);updateRequest.clear();}

Question 2

FusionInsight HD V100R002C60in, aboutHiveofPythonInterface type, which of the following descriptions is incorrect?

A. hive_python_clientscript provides direct executionSQLfunctions, such ashive_python_client'show tables'
B. PythonSecondary development does not support secure clusters
C. RequirePythonversion no lower than2.6.6,not higher than2.7.0
D. Client must havesetuptools, and the version is not lower than5.0

Question 3

FusionInsight HDmiddle,StreamingPackaging tools are used tojarpackages and other dependencies jarpackage, etc., typed into a completeStreamingAppliedjarBag

A. False
B. True

Question 4

Suppose there is an application with10Tables, each table has tens of millions of records, and the number of fields is about20indivual. now useRedisto cache this10The data of a table, the design of its data structure, which of the following is the best design?

A. usehashstructure, and a table uses ahashKEY, a row in the table records forhash keyone of indivualed.
B. usehashTable structure, each row record of each table uses onehashKEY, hashKEYofebCorrespondence table
C. record fields, and designKEYEach table adds a different prefix to distinguish it.
useringstructure, each field of each row record of each table uses oneKEY.
D. usem3structure, each row record of each table uses oneKEY,,aueAll records for a row in the table. The value after the field is concatenated.

Question 5

existSpark, assuminglinesIs anDStreamObject, which of the following statements can periodically count the number of words on this stream?

A. lines.flatMap(_.split??)).map(word=>(word,1)).reduceByKey(_+_).print ( )
B. lines.flatMap(_.split??)).flatmap(word=>(word,1)).groupByKey(_+_).print ( )
C. lines.flatMap(_.split??)).map(word=>(word,1)).reduce(_+_).print ( )
D. lines.flatMap(_.split??)).map(word=>(word,word.length())).reduceByKey(_+_).print ( )

Solutions: