Difference between Reduce and Fold in Apache Spark

We have two commonly used RDD functions reduce and fold in Spark, and this video mainly explains about their similaritiy and difference, and under what scenarios should they be used.

[@Jay-vh3gx]

crystal clear explanation.. thanks

[@UnboxingBigData]

Thanks for the feedback.

[@vgfinearts4917]

Nice explanation , can u please list few scenarios where we use fold Actions in hadoop.

[@Satyadeeppragada]

can you explain a few more scenarios between the fold and reduce
nice explanation

[@shivamguys]

great explanation

[@ehteshamulhaque333]

why and where we use the fold function?