1. Categories >> Software >> Big Data >> Hadoop >> Apache Spark
  2. Suggest New Category

Explain first() operation in Apache Spark?

Question Posted / noopur


Explain first() operation in Apache Spark?..

Answer / Krishna Kumar

first() is a transformative action that returns the first element of a Resilient Distributed Dataset (RDD). If there are no elements in the RDD, it will return None (in Python) or null (in Scala).

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Apache Spark Interview Questions

What do you understand by receivers in Spark Streaming ?

1 Answers  

What can skew the mean?

1 Answers  

What are broadcast variables in spark?

1 Answers  

Do I need to know hadoop to learn spark?

1 Answers  

What is meant by Transformation? Give some examples.

0 Answers  

What is the bottom layer of abstraction in the Spark Streaming API ?

1 Answers  

What is shuffle read and shuffle write in spark?

1 Answers  

Explain the flatMap() transformation in Apache Spark?

1 Answers  

Explain Spark map() transformation?

1 Answers  

What is in memory in spark?

1 Answers  

What is Spark Streaming?

1 Answers  

How can you launch Spark jobs inside Hadoop MapReduce?

1 Answers  

For more Apache Spark Interview Questions Click Here
Categories