$2.$ The following flow chart shows the flow of processing data in a Spark application.

$1.$ What does this application do$?$

II$.$ How many iterations are being performed on the data?

Transformation

Split each line into words

Transformation

Map each word to $($word$,1)$

Transformation

Reduce by aggregating count per word $($word$,$ count$)$

Print top $5$ frequently used words and their respective counts

Action

Sort by count $($descending$)$

Transformation

Read all the lines from a file into memory

Map $($word$,$ count$)$ to $($count$,$ word$)$

Transformation