GIAC Security Essentials Certification (GSEC) — Question 16

Which of the following radio frequencies is used by the IEEE 802.11a wireless network?

Answer options

• A. 3.7 GHz
• B. 7.0 GHz
• C. 2.4 GHz
• D. 5.0 GHz

Correct answer: D

Explanation

The IEEE 802.11a wireless network operates at a frequency of 5.0 GHz, which allows for higher data rates and less interference compared to lower frequencies. The other options, such as 3.7 GHz, 7.0 GHz, and 2.4 GHz, do not correspond to the frequency standard for 802.11a, as 2.4 GHz is used by 802.11b/g/n instead.