Which term describes operator sends control signals back to the site of a transmitting sensor using a single transmission?

Which term describes operator sends control signals back to the site of a transmitting sensor using a single transmission?

• A. Full duplex
• B. Duplexing
• C. Half duplex
• D. Simplex

Answer: (B)

Duplexing describes two‑way communication over a single transmission path. In this scenario, signals travel back from the operator to the remote sensor using the same transmission medium, enabling the control signals to reach the site where the sensor is located. This captures the idea of two‑way exchange on one channel, which is what duplexing concerns. Simplex is one‑way only, so it wouldn’t support the operator sending controls back. Full duplex implies simultaneous two‑way communication on separate channels, which isn’t required here since the emphasis is on using a single transmission. Half duplex involves two‑way communication on one channel but not at the same time; the term duplexing covers the broader concept of two‑way capability on the same medium, which aligns with the scenario.

Duplexing describes two‑way communication over a single transmission path. In this scenario, signals travel back from the operator to the remote sensor using the same transmission medium, enabling the control signals to reach the site where the sensor is located. This captures the idea of two‑way exchange on one channel, which is what duplexing concerns.

Simplex is one‑way only, so it wouldn’t support the operator sending controls back. Full duplex implies simultaneous two‑way communication on separate channels, which isn’t required here since the emphasis is on using a single transmission. Half duplex involves two‑way communication on one channel but not at the same time; the term duplexing covers the broader concept of two‑way capability on the same medium, which aligns with the scenario.