CompTIA Network+ (N10-009) — Question 452

Which of the following Layer 1 devices is responsible for the termination of fiber-optic connections on an SFP-capable switch?

Answer options

• A. Transceiver
• B. Modem
• C. Ethernet NIC
• D. Repeater

Correct answer: A

Explanation

The correct answer is A, as a transceiver is specifically designed to convert electrical signals to optical signals and vice versa, thus terminating fiber-optic connections. The modem is used for modulating and demodulating signals for transmission over telephone lines, the Ethernet NIC connects devices over Ethernet networks, and the repeater amplifies signals but does not terminate connections.