UPSC Previous Year Question | Prelims GS | 2022

Consider the following communication technologies: 1. Closed-circuit Television 2. Radio Frequency Identification 3. Wireless Local Area Network Which of the above are considered communication Short-Range devices/technologies?

  1. 1 and 2 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3

Answer

Correct Answer

1, 2 and 3

Explanation

CCTV, RFID and WLAN are all classified as Short-Range Devices (SRDs) — low-power radio equipment with a limited transmission range and low risk of interference with other radio services.

Topics: communication technology, rfid wlan cctv, science and technology, short range devices