Which network device regenerates and relays signals to avoid transmission loss?

Which network device regenerates and relays signals to avoid transmission loss?

• A. Repeater
• B. Router
• C. Switch
• D. Bridge

Answer: (A)

Signals weaken as they travel along a cable, so a device is used to refresh them. A repeater receives the weakened signal, regenerates it to its full strength, and then retransmits it onto the next segment. This restores the signal and extends the usable distance of the network, preventing transmission loss. Routers, switches, and bridges move and manage traffic based on addresses and network logic, rather than simply restoring a weakened electrical signal, so they don’t extend reach in the same way a repeater does.

Signals weaken as they travel along a cable, so a device is used to refresh them. A repeater receives the weakened signal, regenerates it to its full strength, and then retransmits it onto the next segment. This restores the signal and extends the usable distance of the network, preventing transmission loss. Routers, switches, and bridges move and manage traffic based on addresses and network logic, rather than simply restoring a weakened electrical signal, so they don’t extend reach in the same way a repeater does.