Which device strengthens a weakened network signal?

Which device strengthens a weakened network signal?

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

Answer: (A)

When a signal weakens over distance, you need something that increases its power. An amplifier does exactly that: it boosts the strength of the incoming signal so it can travel farther without losing quality as quickly. This direct boost helps overcome attenuation along the link, whether it’s a wired or wireless path. A repeater, while it can extend coverage, works by receiving the signal, cleaning it up, and retransmitting a new copy. It’s more about extending reach than increasing the original signal’s power, which is why it’s not the best fit for “strengthens a weakened network signal.” Routers and switches don’t boost signal strength at all; they route and forward traffic within networks.

When a signal weakens over distance, you need something that increases its power. An amplifier does exactly that: it boosts the strength of the incoming signal so it can travel farther without losing quality as quickly. This direct boost helps overcome attenuation along the link, whether it’s a wired or wireless path.

A repeater, while it can extend coverage, works by receiving the signal, cleaning it up, and retransmitting a new copy. It’s more about extending reach than increasing the original signal’s power, which is why it’s not the best fit for “strengthens a weakened network signal.” Routers and switches don’t boost signal strength at all; they route and forward traffic within networks.