UPSC Civil Services Prelims 2022
Question 41 of 57Science
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?
A1 and 2 only
B2 and 3 only
C1 and 3 only
D1, 2 and 3
Correct Answer
The correct answer is hidden
Explanation
12 words hidden ... CCTV generally works within a localized surveillance network, RFID is intrinsically short-range in many practical ... 13 words hidden