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UPSC Prelims 2022 Paper-1 📅 05 Jun, 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 Short-Range devices/technologies?

A
(a) 1 and 2 only
B
(b) 2 and 3 only
C
(c) 1 and 3 only
D
(d) 1, 2 and 3
Result Summary
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APEDIA

UPSC Prelims
2022 • 05 Jun, 2022 • Paper-1
Consider the following communication technologies:
1. Closed-circuit Television
2. Radio Frequency Identification
3. Wireless Local Area Network

Which of the above are considered Short-Range devices/technologies?
Correct Answer
(d) 1, 2 and 3
Device Classification: Short-Range Devices (SRDs) are radio transmitters or wired setups that provide unidirectional or bidirectional communication over highly ......
Ref/Book : UPSC Prelims 2022
Ref. Subject Science & Technology
Chapter -
Ref. Topic IT & Computers
Pg. No -
💡 Analysis & Explanation
Device Classification ▼
Short-Range Devices (SRDs) are radio transmitters or wired setups that provide unidirectional or bidirectional communication over highly localized distances, with low capability of causing interference to other broader network equipment.
Technology Analysis ▼
Closed-circuit Television (CCTV) operates entirely on a localized, short-range closed loop (wired or wireless) for camera-to-monitor communication. Radio Frequency Identification (RFID) operates over very microscopic distances (from a few centimeters to a few meters) for tag tracking. Wireless Local Area Networks (WLAN/Wi-Fi) provide internet connectivity within a confined, localized area like a single home or office building.
Conclusion ▼
All three technologies operate fundamentally and effectively within limited, short-range spatial boundaries.
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