Question

Point out the correct statement.

(a) After 4.0, you cannot terminate both background index builds and foreground index builds

(b) Before MongoDB 2.1, you could only terminate background index builds

(c) After 2.4, you can terminate both background index builds and foreground index builds

(d) None of the mentioned

I had been asked this question in an interview for internship.

The origin of the question is Index Management in chapter Index/Indexing Concepts of MongoDB

Answer 1

The correct choice is (c) After 2.4, you can terminate both background index builds and foreground index builds

Easiest explanation: You cannot terminate a replicated index build on secondary members of a replica set.