Question

Point out the correct statement.

(a) Update definitions define what fields to modify during an update

(b) Query specifications, which define what fields to index

(c) Index selectors, which define what records to select for read, update, and delete operations

(d) All of the mentioned

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

This key question is from MongoDB documents in portion GridFS, BSON Datatype and Administration Concepts of MongoDB

Answer 1

Correct answer is (a) Update definitions define what fields to modify during an update

To explain: MongoDB stores all data in documents, which are JSON-style data structures composed of field-and-value pairs.