Which of the following devices functions mainly at the data link layer of the OSI model and is used to connect a fiber-optic cable to a network interface?

The correct answer is C. SFP transceiver. An SFP (Small Form-factor Pluggable) transceiver is a modular device that provides the interface between fiber-optic or copper cabling and the networking equipment (e.g., switch or router). It operates primarily at Layer 2 (Data Link), converting optical or electrical signals…

Submitted by hans_de· Mar 6, 2026Networking concepts

Question

Options

ASC
BDAC
CSFP transceiver
DTwinaxial cable

How the community answered

(26 responses)

B
8% (2)
C
88% (23)
D
4% (1)

Explanation

An SFP (Small Form-factor Pluggable) transceiver is a modular device that provides the interface between fiber-optic or copper cabling and the networking equipment (e.g., switch or router). It operates primarily at Layer 2 (Data Link), converting optical or electrical signals into frames usable by the network device.

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