Question

Point out the correct statement.

(a) Replica set configuration is straightforward

(b) Keyfile must be less than one kilobyte in size

(c) Keyfile may only contain characters in the base64 set and the file must not have group or “world” permissions on UNIX systems

(d) All of the mentioned

This question was addressed to me in an international level competition.

This interesting question is from Run-time Database Configuration in section GridFS, BSON Datatype and Administration Concepts of MongoDB

Answer 1

The correct option is (d) All of the mentioned

To explain: To enable authentication for the replica set, add the keyFile option.