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

1. writingMapReduceWhich two interfaces are usually required to be implemented by developers?

A) mapandcombine
B) reduceandcombine
C) mapandreduce
D) combineandsort

2. aboutHiveThe basic operation of building a table, the description is correct?
You need to specify when creating an external tableexternalkeywords.

A) Once the table is created, the column names cannot be changed.
B) Once the table is created, the table name cannot be changed.
C) Once the table is created, no new columns can be added.

3. Does a project require Internet access to a certain area? ? Save and search the full text of these Internet records? ? information, with to prevent crime in the region.
In this scenario, which of the following options is the best?

A) existHBasestore data on theHBaseThe filtering characteristics of , satisfy fuzzy matching query.
B) existSolrCreate an index and save the data, and return all the data during full-text search.
C) 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.

4. FusionInsight HD in which ways can you viewOozieDebug results of the job? (multiple choice)

A) CheckOozieofJava APIWhether the returned result is as expected
B) pass throughHue's file browser to see ifHDFSThe specified directory produces the expected file
C) pass throughHueofworkflowDashboard to view program running results
D) Oozieself-containedWebThe interface can also view the job execution results

5. existSpark, which of the following is trueDataFrameThe operator that takes the intersection?

A) join (right: DataFrame, join Exprs: Column): DataFrame
B) intersect (other: Data Frame): Data Frame
C) filter (condifionExpr: String): DataFrame
D) dropDuplicates (): DataFrame

Solutions: