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Routers operate at layer _. LAN switches operate at layer . Ethernet hubs operate at layer _. Word processing operates at layer _____.

3, 3, 1, 7
3, 2, 1, none
3, 2, 1, 7
3, 3, 2, none

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.

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Routers operate at layer _____. LAN switches operate at layer ______. Ethernet hubs operate at layer _____. Word processing operates at layer _______.

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Routers operate at layer _. LAN switches operate at layer . Ethernet hubs operate at layer _. Word processing operates at layer _____.