Frame Relay is characterized by what method of data transmission?

Frame Relay is characterized by its use of a packet-switching protocol, which is fundamental to its data transmission method. In this approach, data is encapsulated into packets, enabling efficient sharing of bandwidth among multiple users on the same network. Each packet includes a header containing the destination address, allowing for dynamic routing through the network. This flexibility improves data flow and reduces latency, as packets can be sent along the most efficient paths rather than being confined to a specific circuit.

The packet-switching nature of Frame Relay allows for variable-length packets, making it adaptable to different types of data traffic and usage patterns. This differs from a circuit-switching method, where a dedicated circuit would remain open for the entire duration of a transmission.

By contrast, time-division multiplexing involves dividing a single channel into multiple time slots for simultaneous communication, message queuing refers to the management of messages in a queue for processing, and wireless communication pertains to the data exchanged over wireless channels. These alternative methods do not describe the operational mechanism specific to Frame Relay.