D. None of the mentioned
Select the wrong statement :
___________ 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.