Question

Point out the wrong statement.

(a) The field names cannot start with the dollar sign ($) character

(b) The field names cannot contain the dot (.) character

(c) The field names cannot contain the null character

(d) None of the mentioned

This question was posed to me in examination.

I would like to ask this question from ObjectId in section GridFS, BSON Datatype and Administration Concepts of MongoDB

Answer 1

The correct answer is (d) None of the mentioned

For explanation I would say: Documents have certain restrictions on field names.