Which of the following is not true for map() Operation? - Spark Quiz

Spark - Quiz(MCQ)

Which of the following is not true for map() Operation?

A)

Map transforms an RDD of length N into another RDD of length N.

B)

It applies to each element of RDD and it returns the result as new RDD

C)

Map allows returning 0, 1 or more elements from map function.

D)

In the Map operation developer can define his own custom business logic.

Correct Answer : Map allows returning 0, 1 or more elements from map function.

Recently Updated in Spark Questions

Which of the following is not true for Hadoop and Spark?

A)

Both are data processing platforms

B)

Both are cluster computing environments

C)

Both have their own file system

D)

Both use open source APIs to link between different tools

Correct Answer : Both have their own file system

The default storage level of cache() is?

A)

MEMORY_ONLY

B)

DISK_ONLY

C)

MEMORY_AND_DISK

D)

MEMORY_ONLY_SER

Correct Answer : MEMORY_ONLY

Which Cluster Manager do Spark Support?

A)

YARN

B)

MESOS

C)

Standalone Cluster Manager

D)

All of the above

Correct Answer : All of the above

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