Which of the following are benefits of VLANs?<br>1. They increase the size of collision domains.<br>2. They allow logical grouping of users by function.<br>3. They can enhance network security.<br>4. They increase the size of broadcast domains while decreasing the number of collision domains.<br>5. They simplify switch administration.<br>6. They increase the number of broadcast domains while decreasing the size of the broadcast domains.

Correct Answer: 2, 3 and 6
VLANs break up broadcast domains in a switched layer 2 network, which means smaller broadcast domains. They allow configuration by logical function instead of physical location and can create some security if configured correctly.