Administrators can implement collection-level access control through user-defined __________
(a) roles
(b) replica sets
(c) shards
(d) none of the mentioned
(a) roles
(b) replica sets
(c) shards
(d) none of the mentioned
The correct option is (a) roles
To elaborate: By creating a role with privileges that are scoped to a specific collection in a particular database, administrators can provision users with roles that grant privileges on a collection level.