Designing Cisco Enterprise Wireless Networks (ENWLSD) — Question 148

A customer has two Cisco WLCs configured in a SSO cluster. The wireless network supports a large warehouse. The customer purchases new iPads to replace legacy scanners. Both devices connect to a single SSID named Scanning by using WPA2 Personal. The customer wants to use a standards-based method for fast roaming on the new iPads. Which approach meets the scanner requirement and still supports the legacy scanners?

Answer options

• A. Enable FT PSK and set Fast Transition to Adaptive for the Scanning SSID.
• B. Enable FT 802.1X and set Fast Transition to Adaptive for the Scanning SSID.
• C. Enable optimized roaming globally and enable FT 802.1X on the Scanning SSID.
• D. Enable optimized roaming globally and enable FT PSK on the Scanning SSID.

Correct answer: A

Explanation

The correct answer is A because enabling FT PSK with Adaptive Fast Transition allows for fast roaming while supporting WPA2 Personal for legacy scanners. Options B and C require 802.1X, which is not compatible with the legacy devices that rely on PSK. Option D enables optimized roaming but lacks the specification for Adaptive Fast Transition, which is necessary for the desired performance.