Receive and transmit on separate frequencies but concurrently is an example of what?

Receive and transmit on separate frequencies but concurrently is an example of what?

• A. Full-duplex circuit
• B. Half-duplex circuit
• C. Simplex circuit
• D. Duplex circuit

Answer: (A)

Receiving and transmitting on separate frequencies at the same time is full-duplex operation. In a full-duplex link, the transmit and receive paths run concurrently, allowing you to listen while you speak without waiting for the other side to stop. This is different from simplex, where communication only goes in one direction, and from half-duplex, where two-way communication is possible but not simultaneous—you have to take turns transmitting and receiving. The idea behind full-duplex is that two separate channels (frequencies) carry the two directions at once, enabling true two-way conversation.

Receiving and transmitting on separate frequencies at the same time is full-duplex operation. In a full-duplex link, the transmit and receive paths run concurrently, allowing you to listen while you speak without waiting for the other side to stop. This is different from simplex, where communication only goes in one direction, and from half-duplex, where two-way communication is possible but not simultaneous—you have to take turns transmitting and receiving. The idea behind full-duplex is that two separate channels (frequencies) carry the two directions at once, enabling true two-way conversation.