CWDP-305 Exam Dumps - Certified Wireless Design Professional

Channels 116-124 in the 5 GHz band fall under the Dynamic Frequency Selection (DFS) range, which requires devices to vacate the channel if radar signals are detected. Proximity to airports increases the likelihood of radar interference, leading to potential disruptions in Wi-Fi service.

The CWDP-305 Official Study and Reference Guide advises:

"In environments near radar installations, such as airports, it's recommended to avoid DFS channels (e.g., 116-124) to prevent service interruptions due to radar detection requirements."

Among common construction materials, fire-rated steel doors present the highest level of RF attenuation. Steel reflects and absorbs significant RF energy, often reducing signal strength by 10–20 dB or more.

From CWDP-305:

“Fire-rated metal doors and elevator shafts are among the most attenuating structures in a building. These materials reflect and absorb RF signals, severely limiting Wi-Fi propagation.”

— Reference: CWDP-305 Official Study and Reference Guide, Chapter on ProtocolandSpectrum Analysis

Comprehensive and Detailed Explanation:

For reliable Voice over Wi-Fi (VoWiFi) service, a minimum RSSI of -67 dBm is generally recommended. This level ensures sufficient signal strength to support the quality of service required for voice applications, providing adequate signal-to-noise ratio (SNR) and minimizing the likelihood of dropped calls or poor audio quality.

Constraints in network design refer to any limitations that must be worked within during the planning, design, and deployment phases of a project. These constraints shape the decision-making process and ultimately impact the outcome and success of the network.

According to the CWDP-305 Official Study and Reference Guide (Chapter: Wireless Design Process), the following are all common types of constraints:

Timeline: Project deadlines and delivery schedules that limit how long the design or deployment phases can take.

Personnel: Availability of skilled engineers, project managers, and support staff to execute and maintain the design.

Politics: Organizational culture, internal resistance, or conflicting stakeholder priorities that may influence technical decisions.

Budget: Financial limitations that restrict the number or type of components, tools, or services that can be purchased.

“Constraints such as time, money, human resources, and even political considerations are among the most critical factors influencing a WLAN design.”

— Reference: CWDP-305 Official Study and Reference Guide, Chapter on Wireless Design Process

Comprehensive and Detailed Explanation:

When troubleshooting 802.1X/EAP authentication issues, consider the following:

A.Ensure the RADIUS server is online and that the APs and WLAN controllers are configured to communicate with it on the correct port. Misconfigured ports can prevent authentication requests from reaching the server.

C.Verify that the authenticator (e.g., AP or controller) supports the EAP type configured on the client. A mismatch can lead to authentication failures.

D.If using certificate-based EAP methods (like EAP-TLS), confirm that the client's certificate is valid, not expired, and trusted by the RADIUS server. Certificate issues are common causes of authentication problems.

Note:

B.The RADIUS shared secret is configured between the authenticator and the RADIUS server, not on the client (supplicant). Therefore, this option is not applicable.

A coverage-based wireless network design focuses on providing signal coverage over a large area using fewer APs operating at higher power levels. This approach aims to ensure that the entire area has basic connectivity. However, it may not support high client densities or bandwidth-intensive applications effectively. In contrast, a capacity-based design would involve deploying more APs at lower power levels to handle a higher number of clients and provide better performance.

Received Signal Strength Indicator (RSSI) is a metric that measures the power level of a received radio signal.In the context of location-based services within wireless networks, RSSI-based localization is known for its simplicity, as it doesn't require additional hardware or complex algorithms.However, this simplicity comes at the cost of accuracy.RSSI measurements can be significantly affected by environmental factors such as multipath propagation, obstacles, and signal interference, leading to less precise location estimations compared to other methods like AoA, ToA, or TDoA.Wray Castle

Post-implementation deliverables serve to document the final WLAN design, configuration, and layout for the customer’s operational and maintenance teams. The CWDP-305 Study Guide identifies essential deliverables that ensure long-term support, change management, and troubleshooting.

These include:

Floorplans with AP placements and coverage zones

Design documents specifying SSID configuration, channel plans, and power levels

WLAN configuration exports or screenshots for controllers/APs

Inventory lists of installed equipment (serial numbers, models, etc.)

Guides or SOPs for routine WLAN tasks

Providing this documentation is a professional best practice that aligns with design transparency, customer service, and lifecycle management. It enables future audits, upgrades, or expansions while ensuring continuity even if personnel changes.