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

1. 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,word.length())).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,1)).reduceByKey(_+_).print ( )

2. FusionInsight HDin, belonging toStreamingWhat is the nature of the data distribution method? (multiple choice)

A) Laal Gg
B) Direct Grouping
C) Shuffle Grouping
D) Field Grouping

3. FusionInsight HD which components are provided externallySQLor classSQLability? (multiple choice)

A) Redis
B) Hive
C) HBase
D) Spark

4. existHBaseIn table design, it is common to multiple businessesrowkey, what are the possible countermeasures for situations that lead to data access contradictions?
slightly? (multiple choice)

A) pre-scoreregion
B) compromise method (rowkeyDesign takes into accountAandBbusiness needs)
C) Redundancy method (use space for time factory efficiency)
D) Create secondary index

5. YarnWhich role is to manage individual node resources (CPU/Memory)of?

A) NameNode
B) NodeManager
C) Resource Manager
D) Data Node

Solutions: