D. all of the mentioned
GridFS uses a _________ index on the chunks collection for the files_id and n fields.
Which of the following query is used to generate a new ObjectId, use the ObjectId() constructor with no argument
If you create the user administrator before enabling access control, MongoDB disables the ________ exception.
If you use the localhost exception when deploying a new MongoDB system, the first user you create must be in the ________ database.
Point out the wrong statement :