CWTS: Certified Wireless Technology Specialist — Question 1

802.11a operates in the __________ GHz frequency range and uses the ___________ frequency bands.

Answer options

• A. 2.4, OFDM
• B. 2.4, ERP
• C. 2.4, HR/DSSS
• D. 5, OFDM
• E. 5, UNII

Correct answer: E

Explanation

The correct answer is E, as 802.11a operates in the 5 GHz frequency range and uses UNII bands. Options A, B, and C are incorrect because they refer to the 2.4 GHz frequency range, which is not applicable to 802.11a, and the modulation methods mentioned do not align with the correct frequency bands used by 802.11a.