Which wireless communication medium best describes what a standard Wi-Fi…
2026
Which wireless communication medium best describes what a standard Wi-Fi router uses for data transmission in a computer network?
- A.
Radio waves (microwave-frequency RF)
- B.
Gamma rays
- C.
Infrared waves
- D.
Ultraviolet waves
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Correct answer: A
Correct answer: Radio waves (microwave-frequency RF)
Wi-Fi uses radio-frequency electromagnetic waves, commonly in bands such as 2.4 GHz and 5 GHz.
These GHz bands are often called microwave bands in electromagnetic-spectrum tables. Microwaves are part of the broader radio-frequency/radio-wave range used for wireless communication.
Since the option list does not separately provide “microwaves,” the best and correct broader category is radio waves.