Question

Cursors returned from aggregation only supports cursor methods like ________________

(a) cursor.hasNext()

(b) cursor.Next()

(c) cursor.has()

(d) all of the mentioned

I have been asked this question in a job interview.

Question is from Aggregation Pipeline topic in chapter Aggregation Concepts and Aggregation Mechanics of MongoDB

Answer 1

Right choice is (a) cursor.hasNext()

The explanation: cursor.hasNext() returns true if the cursor returned by the db.collection.find() query can iterate further to return more documents.