How many channels can the 2.4 GHz frequency band be divided into?

The correct answer is A. 14. Option A (14) is correct because the IEEE 802.11 standard defines 14 total channels across the 2.4 GHz band globally, though not all are available in every region. Option C (11) is a common distractor because North America (FCC) only permits channels 1 through 11, making it the…

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Options

How the community answered

(31 responses)

A
74% (23)
B
6% (2)
C
3% (1)
D
16% (5)

Explanation

Option A (14) is correct because the IEEE 802.11 standard defines 14 total channels across the 2.4 GHz band globally, though not all are available in every region. Option C (11) is a common distractor because North America (FCC) only permits channels 1 through 11, making it the most familiar number for many test-takers. Option B (13) reflects the European (ETSI) regulatory limit, where channels 1 through 13 are permitted. Option D (3) is also plausible but refers to something different entirely: the number of non-overlapping channels in the 2.4 GHz band (typically channels 1, 6, and 11), which is a separate concept about interference reduction.

Memory tip: Think "14 total, but regulations reduce the count by region" - the full standard always wins on a global exam question, so 14 is the answer when asked how many channels the band CAN be divided into.

Topics

#2.4 GHz band#channel allocation#frequency spectrum#IEEE 802.11

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