gs1medium

Consider the following communication technologies :

  1. 1.Closed-circuit Television
  2. 2.Radio Frequency Identification
  3. 3.Wireless Local Area Network

Which of the above are considered Short-Range devices/ technologies ?

  1. A.1 and 2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
▶ Answer & Explanation

Correct answer: D. 1, 2 and 3

Closed-circuit television (CCTV) systems typically operate over short distances using wired or wireless connections within a confined area. Radio Frequency Identification (RFID) tags and readers communicate over very short ranges, often only a few meters. Wireless Local Area Networks (WLANs), like Wi-Fi, are designed for short-to-medium range communication within a building or campus. All three technologies are generally characterized by their limited operational radius.

Source: UPSC gs1 2022

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