The compact transceiver that replaces GBIC and plugs into a designated port on a network device to connect various types of fiber optic or twisted pair connections is called what?

Optimize your success on the FSNA Readiness Exam. Engage with flashcards and multiple choice questions, each designed with hints and explanations. Prepare thoroughly for your test and excel!

This question is about modular, hot-swappable transceivers that fit into a dedicated slot on network gear to support different media. The compact transceiver that replaces the older GBIC and plugs into the device’s port to connect various fiber or twisted-pair connections is the Small Form-factor Pluggable, or SFP.

SFP modules are designed to be swapped in and out while the device is powered, giving flexibility to choose the appropriate interface for the media and distance you’re working with. Different SFP modules handle different media: multimode or single-mode fiber at various wavelengths, or copper variants that connect over Ethernet through a copper interface. This modular approach is why SFPs are favored over the larger GBICs they replaced.

GBIC is the older, larger form factor; a NIC is the network interface card itself rather than the plug-in transceiver, and RJ45 Transceiver isn’t a standard term for this kind of module.