Science and Technology
2022
Communication Technology
Consider the following communication technologies:
- Closed-circuit Television
- Radio Frequency Identification
- Wireless Local Area Network Which of the above are considered Short-Range devices/technologies?
D.1, 2 and 3
C.1 and 3 only
A.1 and 2 only
B.2 and 3 only
Correct Answer: Option D
This question is about Short Range Devices (SRDs). SRDs are low-power radio devices with a limited range, designed to minimize interference.
The following are examples of Short Range Devices:
- Closed-circuit television (CCTV)
- Radio frequency identification (RFID)
- Wireless Local Area Networks (WLAN)
- Access control systems
- Alarms and movement detectors
- Cordless audio devices
- Industrial control systems
- Medical implants
- Metering devices
- Remote control systems
Therefore, all the given options are Short Range Devices/Technologies.
Hence, option (d) is the correct answer.
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