Routers operate at layer _____. LAN switches operate at layer ______. Ethernet hubs operate at layer _____. Word processing operates at layer _______.
Correct Answer: 3, 2, 1, none
Explanation:
Routers operate at layer 3. LAN switches operate at layer 2. Ethernet hubs operate at layer 1. Word processing applications communicate to the Application layer interface, but do not operate at layer 7, so the answer would be none.
