PySpark

What is Action in Spark RDD?

• The ways to send result from executors to the driver
• Takes RDD as input and produces one or more RDD as output.
• Creates one or many new RDDs
• All of the above

The shortcomings of Hadoop MapReduce was overcome by Spark RDD by

• Lazy-evaluation

• In-memory processing

• All of the above

Caching is an optimizing technique.

• true

• false

Spark is best suited for ______ data.

• Real-time
• Virtual
• Structured
• All of the above

Which of the following language is not supported by Spark?

• Python
• Scala
• Java
• Pascal