The characteristics that distinguish various data link configurations are topology and whether the link is half duplex or full duplex.

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Topology and duplexing are two key factors that differentiate data link configurations. Topology refers to the physical arrangement of devices and cables in a network, such as bus, ring, or star. Duplexing describes whether a connection allows for simultaneous two-way communication, known as full duplex, or only one-way communication at a time, known as half duplex.

The Characteristics That Distinguish Various Data Link Configurations Are Topology