What is map - side join?
A . Map-side join is done in the map phase and done in memory
B . Map-side join is a technique in which data is eliminated at the map step
C . Map-side join is a form of map-reduce API which joins data from different locations
D . None of these answers are correct
Answer:A
What is map - side join?
A . Map-side join is done in the map phase and done in memory B . Map-side join is a technique in which data is eliminated at the map step C . Map-side join is a form of map-reduce API which joins data from different locations D . None of these answers are correct