A customer wants a network engineer to design a Cisco wireless solution that will have redundancy through SSO and LAG. APs in the executive office must reassociate to the WLC as soon as possible in the event of a failure. The WLCs are located in a remote data center. The head office uses a WAN for connectivity with the data center. Which priority must be incorporated in the design to be assigned to the executive APs?
Correct Answer: D
Cisco WLC AP Failover Priority governs the order in which APs are processed when a WLC recovers and APs begin re-associating. The priority levels are: Critical, High, Medium, and Low. During recovery situations, the WLC will accept and process AP join requests in order of priority — Critical priority APs are processed first, before all other priority levels. In a deployment where the WLC is located in a remote data center connected via WAN, the join process for all APs is slower due to WAN latency and potential bandwidth constraints. Under these conditions, assigning Critical priority to executive office APs ensures they are at the front of the processing queue and restore service before lower-priority APs. The executive office designation implies business-critical operations requiring the fastest possible wireless restoration — a requirement that directly maps to the Critical priority level. High priority (Option A) would position the executive APs second in the queue behind any Critical priority APs. Medium (Option B) and Low (Option C) would place them further down the processing order. Reference: WLSD Study Guide — AP Failover Priority Configuration, N+1 and SSO Redundancy Design, WAN-Linked Controller Deployments.
An engineer is designing a solution where guests terminate on an anchor controller in the DMZ. The engineer is having issues and wants to test connectivity between members of a mobility group. Which two steps must be performed to test whether a mobility control packet can be reached over the management interface? (Choose two.)
Correct Answer: A, C
To test whether mobility control packets can reach between WLC peers in a mobility group (used to validate the anchor controller DMZ setup), two steps are required. First, the mping (mobility ping) command (Option A) is the Cisco WLC CLI tool specifically designed to test mobility control path connectivity between WLC peers. Running mping on both WLCs verifies that mobility control messages (UDP port 16666) can be exchanged bidirectionally. Second, UDP port 16666 must be open between the WLCs (Option C) — mping uses this port, and if it is blocked by a firewall (which is common when the anchor is in a DMZ), the mobility control path cannot be established. These two steps together — sending mping packets and confirming the firewall permits UDP 16666 — validate mobility control plane connectivity. The eping (EoIP ping) command (Option B) tests the data path tunnel, not the control path. IP Protocol 97 (Option D) is for the data plane in legacy mobility mode. Tracert (Option E) traces routing paths but does not validate mobility protocol connectivity. Reference: WLSD Study Guide — Mobility Group Troubleshooting, mping Command, UDP 16666 Firewall Requirements.
A university has three campus locations and the main data center. Each campus location has a Cisco Catalyst 9800-40 WLC that manages 600 APs. The data center has a Catalyst 9800-40 WLC, which serves as N+1 backup for each campus WLC. A consulting engineer must install four additional Catalyst 9800-40 WLCs to serve as high availability SSO pairs for each campus, but only two have been approved due to budget restrictions. Requirements: Data center WLC must always be available as N+1 backup, Campus1 WLC must operate with zero downtime, and in the event of multiple campus outages, the AP priority order is to support Campus3, Campus2, then Campus1. Which design approach must the consulting engineer take?
Correct Answer: C
This design scenario requires careful interpretation of the SSO pair function and AP priority semantics. The SSO requirement for Campus1 zero downtime means Campus1’s WLC must be paired in an SSO relationship — SSO provides hitless failover with no AP disassociation and no client reauthentication. The data center WLC, which must always remain available as N+1 backup for all campuses, is the logical SSO partner for Campus1 WLC. The SSO pair presents as a single logical entity, ensuring the data center WLC remains active and capable of serving as N+1 backup while simultaneously providing SSO for Campus1. The AP priority for the N+1 backup scenario defines the recovery order when the backup controller must simultaneously handle APs from multiple campuses. In Cisco WLC AP failover priority, priority 1 is Critical (highest). The stated recovery order — Campus3 first, Campus2 second, Campus1 last — maps to: Campus3 APs assigned priority 4 (Cisco’s highest numeric value in the 4-tier system, equating to the highest service recovery priority in this context), Campus2 APs priority 2, and Campus1 APs priority 1 (lowest, recovered last). Option C correctly pairs the data center WLC with Campus1 WLC for SSO and assigns AP priorities in the correct descending recovery order. Reference: WLSD Study Guide — SSO High Availability, N+1 Redundancy, AP Failover Priority Design.
An engineer must design AP placements for a new branch office that contains two floors. The engineer uses Ekahau to complete the predictive survey. To calculate the signal bleed through between floors, the engineer creates a building, adds the floors, and attenuation areas. After the scale is set, what else must be added on the floors to accurately measure the signal bleed at a specific location?
Correct Answer: C
In Ekahau Site Survey’s multi-floor predictive modeling workflow, alignment points are the critical mechanism that allows the software to understand the precise vertical spatial relationship between floors in a multi-story building. Once floor plans are imported with their scale correctly defined, alignment points must be placed on each floor at the same real-world physical location — such as a stairwell corner, elevator shaft, or structural column — so that Ekahau can accurately calculate vertical signal propagation and inter-floor RF bleed. Without alignment points, the software has no spatial reference to determine which area on Floor 2 is directly above a given point on Floor 1, making floor-to-floor signal bleed calculations geometrically impossible. Drawing coverage areas (Option A) is a post-AP-placement activity. Starting the auto planner (Option B) would attempt to place APs without the required spatial reference. Choosing AP models (Option D) is a subsequent step. Alignment points are a fundamental requirement for any predictive survey involving multi-floor buildings. Reference: WLSD Study Guide — Ekahau Predictive Survey Methodology, Multi-Floor Building Configuration, Signal Propagation Modeling.
A network engineer is deploying Cisco 9130I APs on multiple Cisco Catalyst 9800-80 WLCs with Cisco Catalyst Center. The engineer must enable Cisco AI Analytics and location analytics to use the RRM features to automatically manage the WLC RF profiles. Which type of license must be used on Cisco Catalyst Center?
Correct Answer: A
Cisco Catalyst Center’s AI-driven network management capabilities — including AI Analytics, AI-Enhanced RRM (Radio Resource Management), location analytics (DNA Spaces integration), and automated RF profile management — are exclusively available under the Catalyst Advantage license tier. The Advantage tier builds upon the Essentials tier and adds access to the full suite of AI/ML-powered assurance and optimization features. Specifically, AI-Enhanced RRM leverages machine learning models trained on historical RF telemetry to predict and prevent RF issues, dynamically adjust channel and power assignments, and automate RF profile selection — capabilities that cannot be activated without the Advantage license. Location analytics through Catalyst Center integrates with Cisco Spaces to provide real-time client location tracking, asset tracking, and spatial analytics. Catalyst Essentials (Option C) provides basic device management, software image management, and network plug-and-play provisioning — it does not include AI Analytics or advanced RRM automation. Right-To-Use (Option B) is a legacy licensing model not applicable to Catalyst Center. SNTC SmartNet (Option D) is a support and maintenance contract, not a software feature license. Reference: WLSD Study Guide — Cisco Catalyst Center Licensing, AI-Enhanced RRM, Catalyst Advantage Feature Set.
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