Which of the following are benefits of VLANs? (Choose three.)
A. They increase the size of collision domains.
B. They allow logical grouping of users by function.
C. They can enhance network security.
D. They increase the size of broadcast domains while decreasing the number of collision domains.
E. They increase the number of broadcast domains while decreasing the size of the broadcast domains.
F. They simplify switch administration.
Correct Answer: BCE
Each VLAN is its own broadcast domain and has nothing to do with collisions (rules out A and D). Adding VLANs without changing the number of stations will
increase the number of broadcast domains and make the number of stations in each fewer (E). VLANs make administration more complex (more configuration)
which rules out F. Traffic cannot cross between VLANs without a router (where we can put ACLs), so network security is increased (C). VLANs do allow logical
grouping of users by function (B).