Point out the wrong statement :

______________ specifies the number of documents to return in each batch of the response from the MongoDB instance.

The __________ method returns a document that includes a metrics field.

Which of the following operator is not very selective ?

An index cannot cover a query on a _______ collection when run against a mongos if the index does not contain the shard key.

Replica set configuration requires that the _______ have a value that is consistent among all members of the set.

Setting _______ enables authentication and specifies a key file for the replica set member use to when authenticating to each other.

_______ is /srv/mongodb, which specifies where MongoDB will store its data files

Point out the correct statement :

_____ bit builds of mongod enable journaling by default.