A repeater is a _________ layer device.

Subject: Computer Networks

Topic: Review of Information Network and Technology

Options:

1. Option A: data link
2. Option B: application
3. Option C: network
4. Option D: physical

Correct Answer:

Option D: physical

Explanation:

In an extended network repeaters are used to connect media elements. These repeaters operate on the physical layer of the OSI model. It removes noise from a signal.