A wireless network consultant must assess an existing wireless LAN controller. Which section must the consultant check before replacing the old APs with APs that are IEEE 802.11ac-capable?
A. number of AP licenses
B. controller PSU
C. throughput capacity
D. software version
Looking at this post it looks like it is D:
“Cisco has released WLC 7.6.100.0 code (on 18th Dec 2013) to support new 3700 series AP which supports 802.11ac. ”
https://mrncciew.com/2014/01/10/802-11ac-with-cisco-3700-ap/
A doesn’t make sense for me, if you are replacing APs you already have enough licences, as you won’t have any more APs than before.
Software version might be the thing to check. I know I would check C and also D, before upgrading.
Correct answer must be D.