Question:
is a device used to amplify and retransmit network signals.
is a device used to amplify and retransmit network signals.
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Think of a repeater as a signal booster. It operates at the physical level and has no understanding of addresses or packets; it just regenerates the raw electrical or optical signal.
Updated On: Jul 2, 2026
- Router
- Switch
- Bridge
- Repeater
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The Correct Option is D
Solution and Explanation
Network signals weaken or degrade as they travel over a distance. This phenomenon is called attenuation.
(A) Router: A Layer 3 device that forwards packets between different networks based on IP addresses.
(B) Switch: A Layer 2 device that forwards frames between devices on the same network based on MAC addresses.
(C) Bridge: An older Layer 2 device similar to a switch, used to connect two network segments.
(D) Repeater: A Layer 1 (Physical Layer) device. Its sole purpose is to receive a signal, regenerate it (amplify and clean it up), and retransmit it at a higher power level. This allows the signal to travel longer distances. A hub is essentially a multi-port repeater.
Therefore, a repeater is the device used to amplify and retransmit network signals.
(A) Router: A Layer 3 device that forwards packets between different networks based on IP addresses.
(B) Switch: A Layer 2 device that forwards frames between devices on the same network based on MAC addresses.
(C) Bridge: An older Layer 2 device similar to a switch, used to connect two network segments.
(D) Repeater: A Layer 1 (Physical Layer) device. Its sole purpose is to receive a signal, regenerate it (amplify and clean it up), and retransmit it at a higher power level. This allows the signal to travel longer distances. A hub is essentially a multi-port repeater.
Therefore, a repeater is the device used to amplify and retransmit network signals.
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