Explanation
+ From the output of WLC show interface summary, we learned that the WLC has four VLANs: 999, 14, 15 and 16. + From the show ap config general FlexAP1 output, we learned that FlexConnect AP has four VLANs: 10, 11, 12 and 13. Also the WLAN of FlexConnect AP is mapped to VLAN 10 (from the line WLAN 1: ...... 10 (AP-Specific)).
From the reference at:
https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-1/Enterprise-Mobility-8-1-Design-Guide/Enterpris

Windows can actually block your WiFi signal. How? Because the signals will be reflected by the glass.
Some new windows have transparent films that can block certain wave types, and this can make it harder for your WiFi signal to pass through.
Tinted glass is another problem for the same reasons. They sometimes contain metallic films that can completely block out your signal. Mirrors, like windows, can reflect your signal. They're also a source of electromagnetic interference because of their metal backings.
Reference:
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows. WiFi operates in the gigahertz microwave band. The FCC has strict regulations on RFI (radio frequency interference) from all sorts of things, including light bulbs -> Incandesent lights do not interfere Wi-Fi networks.
Note:
+ Many baby monitors operate at 900MHz and won't interfere with Wi-Fi, which uses the 2.4GHz band. + DECT cordless phone 6.0 is designed to eliminate wifi interference by operating on a different frequency. There is essentially no such thing as DECT wifi interference.

CEF uses a Forwarding Information Base (FIB) to make IP destination prefix-based switching decisions. The FIB is conceptually similar to a routing table or information base. It maintains a mirror image of the forwarding information contained in the IP routing table. When routing or topology changes occur in the network, the IP routing table is updated, and those changes are reflected in the FIB. The FIB maintains next-hop address information based on the information in the IP routing table. Because there is a one-to-one correlation between FIB entries and routing table entries, the FIB contains all known routes and eliminates the need for route cache maintenance that is associated with earlier switching paths such as fast switching and optimum switching.
Note: In order to view the Routing information base (RIB) table, use the "show ip route" command. To view the Forwarding Information Base (FIB), use the "show ip cef" command. RIB is in Control plane while FIB is in Data plane.