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.

Which of the following provide acceptable performance levels for multiple mongod instances?

What is the size of Chunk by default ?

Which of the following sets the database profiler level ?

Which of the following document configures the threshold which determines whether a query is “slow” for the purpose of the logging system ?