Implementing Cisco Wireless Network Fundamentals (WIFUND, legacy) — Question 44
What is the channel width of an 802.11b wireless channel?
Answer options
- A. 10 MHz
- B. 20 MHz
- C. 5 MHz
- D. 22 MHz
Correct answer: D
Explanation
The correct answer is D, as 802.11b uses a channel width of 22 MHz to ensure effective communication and minimize interference. The other options do not accurately represent the channel width standard for 802.11b, with 10 MHz and 5 MHz being too narrow, and 20 MHz being the standard for 802.11g and 802.11n.