Receive and transmit on separate frequency but not at the same time is an example of what?

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Multiple Choice

Receive and transmit on separate frequency but not at the same time is an example of what?

Explanation:
Hands-on idea: you can talk and listen, but you can’t do both at the same time. That time-sharing two-way capability is what defines half-duplex. Having separate frequencies for transmit and receive helps keep the voices clear, but the key point is you must switch between sending and receiving rather than doing both simultaneously. If you could transmit and receive at the same time, that would be full-duplex. If only one direction ever existed, it would be simplex. So the described setup matches half-duplex.

Hands-on idea: you can talk and listen, but you can’t do both at the same time. That time-sharing two-way capability is what defines half-duplex.

Having separate frequencies for transmit and receive helps keep the voices clear, but the key point is you must switch between sending and receiving rather than doing both simultaneously. If you could transmit and receive at the same time, that would be full-duplex. If only one direction ever existed, it would be simplex. So the described setup matches half-duplex.

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