Exam 300-425 topic 1 question 43 discussion

C - "AP groups define the WLAN and VLAN mapping with RF profiles"

Answer:C

Correcting my previous answer as AP Group is useful for environments requiring different SSIDs or VLANs in specific areas. Example: A hotel with separate guest and staff WLANs across different APs.

I think D is correct since by having interface group you can have segmented subnet/VLAN and with AP group you can have segmented WLAN, this is my understanding but maybe I am wrong.

I think D Based on the original question about how to map smaller subnets in a corporate WLAN where clients are assigned subnets according to their location, what's being sought is an efficient way to manage the distribution and assignment of these subnets within the network. This management must allow subnets to be assigned consistently with the physical location of users within the organization. The correct choice, D. Interface groups, directly focuses on the administration of subnets and their logical assignment within a larger network, which is the primary goal in this scenario. Interface groups allow for the grouping of multiple network interfaces on the controller, where each group can be associated with a different subnet. This makes it much easier to assign specific subnets to users in different locations, ensuring that the network structure is organized and that access and security policies are appropriately applied based on where the user is connecting.

tricky question ! You may solve the case with an AP group or with an interface group It depends if an anchor / foreign situation is involved : https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-2/config-guide/b_cg82/b_cg82_chapter_010101110.html In most cases, a mapping WLAN<->interface in each AP group per location is the solution. So I would say answer C

Answer C.

c In typical deployment scenarios, each WLAN is mapped to a single dynamic interface per WLC, but consider a deployment scenario where there is a 4404-100 WLC that supports the maximum number of APs (100). Now consider a scenario where 25 users are associated to each AP. That would result in 2500 users who share a single VLAN. Some customer designs can require substantially smaller subnet sizes. One way to deal with this is to break up the WLAN into multiple segments. The AP grouping feature of the WLC allows a single WLAN to be supported across multiple dynamic interfaces (VLANs) on the controller. This is done when a group of APs is mapped to a specific dynamic interface. APs can be grouped logically by employee workgroup or physically by location. https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-vlan/71477-ap-group-vlans-wlc.html

Provided answer is correct