Question

Point out the wrong statement.

(a) You may not create compound indexes that have hashed index fields

(b) The order of the fields in a compound index is very important

(c) You will receive a warning if you attempt to create a compound index that includes a hashed index

(d) None of the mentioned

This question was posed to me by my college director while I was bunking the class.

The above asked question is from Index Types topic in portion Index/Indexing Concepts of MongoDB

Answer 1

The correct choice is (c) You will receive a warning if you attempt to create a compound index that includes a hashed index

Easiest explanation: You will receive an error if you attempt to create a compound index that includes a hashed index.