CWDP-305 Certified Wireless Design Professional (CWDP) Practice Questions

This is a critical component. The as-built documentation must reflect the actual, final physical location of all installed hardware, which may differ slightly from the original design plan.

The validation survey heat maps (for signal strength, SNR, etc.) provide a baseline of the network's performance at the time of installation. This is invaluable for future troubleshooting to determine if performance has degraded over time.

A record of the final, validated configuration settings is crucial. This includes details like RF profiles, WLAN settings, security configurations, and channel/power plans. It allows for consistent configuration of new equipment and aids in disaster recovery.

False. A passive survey only listens to beacon frames and other management traffic to measure RF coverage (like RSSI and SNR). It does not associate with the network. An active survey, where the survey client associates with the APs, is required to measure client-perspective metrics like roaming handoff times, throughput, latency, and packet loss.

OFDMA is a cornerstone of Wi-Fi 6 for high-density environments. It subdivides a channel into smaller resource units (RUs), allowing an AP to serve multiple clients with small packets simultaneously. This dramatically reduces overhead and contention, significantly improving efficiency for applications like web browsing, messaging, and IoT.

BSS Coloring is a spatial reuse technology specifically designed for dense deployments. It allows an AP to ignore traffic from an overlapping BSS on the same channel if the signal is below a certain threshold. This reduces unnecessary waiting (deferral) and allows more parallel transmissions, which is critical in a convention center with many APs.

Client Isolation is the specific feature designed for this purpose. When enabled, the AP or controller prevents wireless clients connected to the same SSID from sending traffic directly to each other. All traffic must go to the upstream gateway, where firewall policies can be applied. This is a fundamental technique for implementing wireless micro-segmentation.

Zone 3 is colored red, which corresponds to a poor SNR of less than 15 dB. An SNR this low will result in low data rates, retransmissions, and a poor user experience. This area fails to meet basic performance criteria and is the clear priority for remediation, which could involve adding an AP, repositioning AP3, or identifying an interference source.

This statement encapsulates the core business objective. It defines WHAT the business needs to achieve (mobile access to trading) and the key success criteria (secure, high-performance) that drive all subsequent technical decisions, including latency and security protocols. Business requirements focus on the value and capability delivered to the organization.

Plaster with wire mesh (lath) acts as a Faraday cage, which not only attenuates the signal but also causes significant reflection, scattering, and multipath. The irregular nature of the mesh makes its effect highly unpredictable compared to the uniform attenuation of stone or lead, making it the most challenging factor to model and design for.

This is the correct prioritization. VoWiFi is extremely sensitive to latency and jitter and requires the highest QoS (WMM AC_VO). Infusion pump data is critical but less sensitive, fitting well into a medium priority queue (e.g., AC_VI). Guest access should always be designated as best-effort (AC_BE or AC_BK) to ensure it never impacts clinical operations.

Understanding the bandwidth requirements of each application (guest browsing, PoS transactions, inventory lookups) and multiplying by the number of users is a fundamental first step in determining the total capacity needed from the network.

In a high-density network, airtime is the most critical and limited resource. Estimating how much airtime each client will consume based on their application usage is essential for determining how many clients an AP can realistically support and how many APs are needed in total.

This is the best practice for high-density, high-ceiling venues. Using narrow-beamwidth directional antennas pointed downwards creates small, focused coverage cells on the floor. This allows for excellent frequency reuse, minimizes co-channel interference between cells, and delivers high capacity directly to targeted groups of users.