CWAP: Certified Wireless Analysis Professional v402 — Question 2

What is the Extended IFS used in 802.11 contention?

Answer options

• A. When the higher data rates are used and you want the fastest medium access times
• B. When the lower data rates are used and you want the fastest medium access times
• C. When 802.11ac must coexist with 802.11n
• D. When a frame reception begins but the received frame is incomplete or corrupted based on the FCS

Correct answer: C

Explanation

The correct answer is C because the Extended IFS is specifically relevant in scenarios where 802.11ac devices need to share the medium with 802.11n devices. The other options do not accurately describe the conditions under which Extended IFS is applied.