mDNS has specific restrictions regarding its configuration. Option C is correct because mDNS is not supported on FlexConnect APs with a locally switched WLAN, which limits its deployment in certain network designs. Option D is also correct; the controller software must be newer than version 7.0.6 to support mDNS features, which means that older controller software versions do not have the necessary capabilities to handle mDNS.  References : CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide

 To provide guests access using social media authentication, the engineer must configure the “Social Connect” service. This service allows guests to use their Facebook credentials, among other social media platforms, to authenticate and gain network access. It simplifies the guest access process by leveraging existing social media accounts for authentication.  References  := (CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide)

 The Cisco Mobility Services Engine (MSE) integrates with Cisco DNA Center to provide advanced location services, including the tracking of clients experiencing connectivity issues. This integration allows network administrators to visualize and troubleshoot client locations effectively.  References : CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide, which details the integration of location services within Cisco DNA Center.

 For a large company requiring support for 32 VLANs for different departments, the most efficient solution is to configure one single SSID and use Cisco ISE for dynamic VLAN assignment based on user roles. Cisco ISE can classify users into different groups and assign them to the appropriate VLANs. This approach reduces the complexity of managing multiple SSIDs and simplifies the user experience while maintaining a high level of security and network segmentation.  References : CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide

 Differentiated Services Code Point (DSCP) is the trust model that must be configured on the switch ports to which the APs are connected in local mode. This is because DSCP provides a way to classify and manage network traffic and to provide QoS. DSCP can be trusted on the switch port, and the AP can then mark the packets with the appropriate DSCP value, which will be retained across the network.  References  := (CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide)

The primary change to the network when adding APs for location-based services, such as VolMLAN, would be the  AP footprint . This refers to the physical coverage area of the access points. Increasing the AP footprint enhances the ability to perform location-based services by improving the accuracy of  triangulation  and  location tracking  of devices. This is because a denser AP footprint allows for more precise determination of a device’s location within the network.  References : CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide, specifically the sections discussing location-based services and AP deployment strategies for optimal coverage and location tracking.

For central web authentication with Cisco ISE in a Cisco AireOS WLC environment using auto-anchor for the guest network, the foreign WLC must have  UDP ports 1812 and 1813 open to ISE  for RADIUS authentication and accounting. Additionally, a  downloadable preauth ACL on ISE  is required to define the permissions for the guest user before authentication, and a  local preauth ACL on the WLC  is needed to restrict or allow traffic prior to authentication.  References : CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide, particularly the chapters on WLC configuration for guest access and integration with Cisco ISE for security and access control.

The correct command to add a VLAN with a specific ID to a FlexConnect group in a Cisco Wireless LAN Controller (WLC) is ‘config flexconnect group BranchA-FCG vlan 30 add’. This command specifies the FlexConnect group name ‘BranchA-FCG’ and the VLAN ID ‘30’, followed by the action ‘add’, which is consistent with Cisco’s CLI syntax for WLC configuration.  References : CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide