CCNP Wireless 300-110 Book

Flex+Bridge mode is a specialized AP operating mode that combines two distinct Cisco wireless capabilities: FlexConnect (for local switching of client data traffic and central authentication via the WLC) and Bridge/Mesh mode (enabling wireless backhaul when no wired Ethernet uplink is available). In a branch environment without wired backhaul, a standard FlexConnect AP (Option D) cannot operate because FlexConnect still requires an Ethernet connection for its control plane. Bridge mode alone provides mesh backhaul but does not support the local switching with central authentication model required here. MAP (Option A) is a Mesh Access Point role for wireless backhaul, and RAP (Option C) is a Root Access Point with a wired connection — neither meets the no-wired-backhaul requirement with local switching. Flex+Bridge uniquely satisfies both requirements: the Flex component allows locally switched VLANs to be bridged directly to the access layer without traversing the WAN, while the Bridge component enables the AP to use a wireless mesh link for its backhaul uplink. Central authentication is maintained via the CAPWAP control tunnel over the mesh link. Reference: WLSD Study Guide — FlexConnect Design, Mesh Networking, Flex+Bridge Mode Configuration and Use Cases.

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.

The Cisco Catalyst 9300-48HX is a high-density PoE switch specifically designed for Cisco Catalyst 9100 Series AP deployments. The 48HX variant features 48 Multi-Gigabit PoE ports with IEEE 802.3bt (PoE++) support, providing up to 90W per port. The Cisco 9166 Access Point is a Wi-Fi 6E AP that requires IEEE 802.3bt (PoE++) power to achieve full radio functionality — enabling all three radios including the 6 GHz radio. In a two-switch stack of 48HX units, the total PoE budget is designed and rated to support full-port utilization with Cisco 9100 series APs simultaneously. The design intent is to connect APs to all ports on all switches — maximizing the deployment density and ensuring every AP runs with full functionality. Connecting to only half the ports on one switch (Option B), half of each switch (Option C), or all ports on only one switch (Option D) would underutilize the infrastructure and fail to achieve the full deployment density that the switch stack was architected to deliver. The AP naming scheme requiring sequential area numbering requires all APs to be connected and fully operational across the entire stack. Reference: WLSD Study Guide — Catalyst 9300 PoE Infrastructure, 9166 AP Power Requirements, High-Density Wired Infrastructure Design.

This question requires a straightforward PoE power budget calculation. The IEEE 802.3at standard (PoE+) delivers a maximum of 30W at the Power Sourcing Equipment (PSE/switch port). Cisco 9100 Series access points such as the C9120, C9130, and C9136 are designed to operate with full functionality using PoE+ at 30W per AP. The total PoE power requirement for 12 APs is calculated as: 12 APs × 30W per AP = 360W. This figure represents the total power draw that the Cisco 3800 Series PoE+ switch must be capable of supplying across the connected AP ports simultaneously. The Cisco Catalyst 3800 Series switches offer a total PoE power budget that must be validated against this 360W requirement during the design phase. Note that some Cisco 9100 APs support higher power modes through IEEE 802.3bt (PoE++), which can provide up to 90W — but the question specifies PoE+ (802.3at) for the switch infrastructure, making 30W × 12 = 360W the correct answer. Option D (720W) would correspond to 24 APs at 30W each. Option B (1080W) would represent 36 APs. Option C (184.8W) corresponds to a non-standard per-AP power value. Reference: WLSD Study Guide — PoE Power Budget Planning, Cisco 9100 Series AP Power Requirements, Wired Infrastructure Design for Wireless Deployments.