A server administrator is installing a new server and needs to connect it to a network switch 30 meters away using existing multimode fiber (MMF) optic cabling. The switch port supports both SFP and SFP+ modules, and the server's network card requires a 1 Gbps connection. Which transceiver should the administrator install in the switch to meet the requirements?
The correct answer is an SFP (Small Form-factor Pluggable) transceiver. SFP modules are designed for speeds up to 1 Gbps and are the appropriate choice for a Gigabit Ethernet connection. While an SFP module can be used in an SFP+ port, using an SFP+ module for a 1 Gbps link would be incorrect as SFP+ is designed for 10 Gbps speeds. A QSFP (Quad Small Form-factor Pluggable) transceiver is used for even higher speeds, such as 40 Gbps or 100 Gbps. A GBIC (Gigabit Interface Converter) is an older, larger form factor that is physically incompatible with a modern SFP port.