Which of the following is a key wireless design issue in IoT?
Correct Answer: D. Range, interference, data rate, and energy use
Practice Library
All MCQs
Browse exam-wise, subject-wise, and country-wise MCQs with explanations.
Which device typically forwards packets between different networks?
Correct Answer: C. Gateway
Which one is a low-power communication standard mentioned in IoT course contents?
Correct Answer: B. ZigBee
Which communication technology is often used in smart meters and low-power wide coverage Wi-Fi IoT?
Correct Answer: A. IEEE 802.11ah
Which metric is useful for evaluating routing quality?
Correct Answer: D. ETX
Which of the following is a wireless sensor network node constraint?
Correct Answer: C. Limited memory, processing, and battery power
Which technology is suitable for short-range contactless payments and pairing?
Correct Answer: B. NFC
Which wireless technology is commonly available in homes and offices?
Correct Answer: A. Wi-Fi
The application layer is mainly concerned with:
Correct Answer: D. Services and data exchange used by applications
The physical layer is mainly concerned with:
Correct Answer: C. Transmission of raw bits over a medium
What is a protocol stack?
Correct Answer: B. A layered set of communication protocols
Which is a best practice when selecting wireless technology for IoT?
Correct Answer: A. Match range, data rate, power, and cost requirements