Question

db.collection.aggregate() returns a _______ and can return result sets of any size.

(a) replica

(b) cursor

(c) document

(d) $subtract

I had been asked this question by my school principal while I was bunking the class.

The question is from Pipeline and Sharded Collections topic in section Aggregation Concepts and Aggregation Mechanics of MongoDB

Answer 1

Correct answer is (b) cursor

For explanation I would say: The aggregate command can return results as a cursor or store the results in a collection, which are not subject to the size limit.