Which of the following describes a GBIC?

A Gigabit Interface Converter (GBIC) is defined as a removable transceiver that is specifically designed for Gigabit interfaces. Transceivers are essential components in networking as they serve to convert electrical signals into optical signals and vice versa, allowing for the transmission of data over fiber optic cables. The GBIC standard was among the first to allow for hot-swappable interfaces in network devices, enabling network administrators to replace or upgrade transceivers without needing to power down a device or disrupt network operations.

The functionality of a GBIC includes supporting various types of fiber optic and copper cabling, which makes it versatile for different network setups. Its ability to facilitate high-speed data transmission is crucial in environments that require large amounts of data to be sent and received swiftly, such as in data centers and enterprise networks. Thus, describing a GBIC as a removable transceiver for Gigabit interfaces accurately captures its purpose and use in network connectivity.