Question

802.11a uses which frequency range?
A) 900 MHz
B) 2.4 GHz
C) 5 GHz
D) 7 GHz

Answer 1

The 802.11a wireless networking standard uses the frequency range of 5 GHz, which supports higher data rates and experiences less interference.

Step-by-step explanation:

802.11a, which is an IEEE standard for wireless local area networking, uses the frequency range of C) 5 GHz. This is a higher frequency band compared to the more commonly used 2.4 GHz band (used by 802.11b/g/n). The 5 GHz range is preferred due to its ability to support higher data rates and its reduced susceptibility to interference from other household devices. This is because devices such as microwave ovens and cordless phones commonly operate at 2.4 GHz, while the 5 GHz band is less crowded.