___________ is used to determine whether a query is a covered query .

The ________ message is used to update a document in a collection.

The update() method uses the _______ command, which uses the default write concern.

An ________ query plan has returned a threshold number of matching results

A query _______ consists of a combination of query, sort, and projection specifications.

A query may include a ___________ that specifies the fields from the matching documents to return.

Select the correct statement :

MongoDB stores all documents in :

In MongoDB, _________ operations modify the data of a single collection.

Select the wrong statement :