Question 1

What is RDD in Apache Spark?

Accepted Answer

Resilient Distributed Dataset

Answer

Reliable Distributed Data

Answer

Recurrent Data Distributor

Answer

Remote Data Dictionary

Question 2

Which transformation is used to filter elements in an RDD?

Accepted Answer

filter()

Answer

distinct()

Answer

reduce()

Answer

count()

Question 3

Which action is used to return the number of elements in an RDD?

Accepted Answer

count()

Answer

first()

Answer

take()

Answer

collect()

Question 4

Which action is used to return the first element of an RDD?

Accepted Answer

first()

Answer

reduce()

Answer

count()

Answer

take()

Question 5

Which of the following is a transformation operation in Apache Spark RDD?

Accepted Answer

map()

Answer

collect()

Answer

count()

Answer

reduce()

Question 6

Which method is used to repartition an RDD in Apache Spark?

Accepted Answer

repartition()

Answer

filter()

Answer

reduce()

Answer

collect()

Question 7

Which action is used to return a sample subset of elements from an RDD?

Accepted Answer

takeSample()

Answer

count()

Answer

reduce()

Answer

collect()

Question 8

Which transformation is used to perform aggregation operations on an RDD?

Accepted Answer

reduceByKey()

Answer

map()

Answer

distinct()

Answer

filter()

Question 9

Which method is used to sort elements in an RDD?

Accepted Answer

sortBy()

Answer

distinct()

Answer

reduce()

Answer

filter()

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