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Huawei H13-723_V2.0 Exam Syllabus Topics:

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

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

A) mouthif(updateRequest.getDocuments).size(O>=1000){
B) mouthif(updateRequest.getDocumentsMapO.size)>=10000){
cloudSolrClient.request(updateRequest,collName);updateRequest.clear);
C) mouthIbClient.setRequestWriter(new BinaryRequestWriterO);
D) cloudSolrClient.request(updateRequest,collName);updateRequest.clear(); S8tW9H2xgntdc=new SolrInputDocument); doc.addField("id",i.tostring( )doc.addField("name", "Zhang San4i); doc.addField("features","test"+i):
doc.addreldc"price, (float)*1.01);
cloudSolrClient.add(doc);
cloudSolrClient.commit();

2. In useSolrWhen performing a full-text search, you canwtThe parameter specifies the response format of the query result.
aboutSolrThe response format of the query result, which of the following statements is wrong?

A) supportCSVandJSON
B) supportCSV,JSONandHTML
C) supportCSV,JSONandXML

3. existSparkin, becauseDataFramethanRDDThe higher-level interface will have more calling levels. because Therefore, all based onDataFrameThe performance of the developed program will be higher than that based onRDDThe developed program has poor performance.

A) False
B) True

4. Which of the following descriptions about massive small file storage is correct ( )?
(multiple choice)

A) HuaweiHFSIt is suitable for storing a large number of small files, and files can be selectively stored inHDFSorMOBmiddle.
B) The above statement is not correct.
C) HBaseStore a large number of small files,Compactionwill bringIOWaste of resources.
D) HDFSStoring a large number of small files will giveNameNodebring great pressure.

5. when aMapRcdueWhen the application is executed, which of the following actions ismapoccurs before the stage of?

A) split
B) sort
C) partition
D) combine

Solutions: