CompTIA
N10-005 · Question #402
N10-005 Question #402: Real Exam Question with Answer & Explanation
The correct answer is D: N. 802.11n is the only legacy wireless standard capable of operating on both the 2.4 GHz and 5 GHz frequency bands (dual-band).
Question
Which of the following wireless standards is the only one capable of operating in either of the 802.11 wireless spectrums?
Options
- AA
- BB
- CG
- DN
Explanation
802.11n is the only legacy wireless standard capable of operating on both the 2.4 GHz and 5 GHz frequency bands (dual-band).
Common mistakes.
- A. 802.11a operates exclusively in the 5 GHz band and cannot use the 2.4 GHz spectrum.
- B. 802.11b operates exclusively in the 2.4 GHz band and cannot use the 5 GHz spectrum.
- C. 802.11g operates exclusively in the 2.4 GHz band and cannot use the 5 GHz spectrum.
Concept tested. 802.11n dual-band wireless frequency operation
Reference. https://www.ieee802.org/11/
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