What are the key differences between straight-through and crossover cables, and in what scenarios is each type used? Straight-through cables are used for wireless connections, whereas crossover cables are used for wired connections. Straight-through cables are interchangeable with crossover cables in all networking scenarios. Straight-through cables are used exclusively for high-speed data transmission, while crossover cables are for low-speed applications. Straight-through cables have all wires running straight through and are used for connecting different types of devices (e.g., computer to switch), whereas crossover cables have the TX and RX pairs reversed and are used for connecting similar devices (e.g., computer to computer)