CWDP-305 Exam Dumps - CWNP CWDP Wi-Fi Design Questions and Answers

A WLAN scanner is a lightweight tool used during deployment and validation to verify channel utilization, detect SSIDs and APs, evaluate encryption schemes (e.g., WPA2/WPA3), and assess signal strength from APs in a particular area. It is not meant to perform in-depth frame analysis but provides a high-level overview.

From CWDP-305:

“WLAN scanners are useful tools for deployment validation and troubleshooting. They reveal AP signal strength, encryption in use, and can help verify if channel plans have been implemented correctly.”

— Reference: CWDP-305 Official Study and Reference Guide, Chapter on Post-Design ValidationandTroubleshooting

When designing a WLAN infrastructure, it's essential to calculate the Power over Ethernet (PoE) budget accurately to ensure all Access Points (APs) receive sufficient power. IEEE 802.3at, also known as PoE+, provides up to 30 watts of power per port. Therefore, for 6 APs:

6 APs × 30 W = 180 W

This calculation assumes that each AP requires the full 30 W provided by IEEE 802.3at and that there are no additional power losses or overheads. It's always a good practice to include a buffer in real-world scenarios to account for power losses in cables and potential future expansions.Quizlet

The Bill of Materials (BoM) is a comprehensive list detailing all hardware components, devices, and materials required for the deployment of a WLAN infrastructure. It serves as a reference for procurement and ensures that all necessary items are accounted for before the deployment begins. Unlike the Statement of Work, which outlines the scope and objectives, or the design report, which provides technical specifications, the BoM focuses specifically on the tangible components needed for implementation.

In the 5 GHz band, all Wi-Fi traffic (802.11a/n/ac/ax) uses OFDM or OFDMA modulation. If multiple APs use overlapping or identical channels, this results in Co-Channel Interference (CCI). Legacy technologies like HR/DSSS and ERP operate in 2.4 GHz and do not contribute to CCI in 5 GHz.

From CWDP-305:

“CCI occurs when multiple devices share the same channel. In 5 GHz, all compliant Wi-Fi traffic uses OFDM-based PHYs, so other nearby OFDM networks are a primary source of CCI.”

— Reference: CWDP-305 Official Study and Reference Guide, Chapter on Post-Design ValidationandTroubleshooting

If QoS markings are correct from the client to the AP but incorrect from the AP to the client, it's likely that the QoS markings are being stripped or not trusted somewhere on the wired network between the controller and the AP. This misconfiguration can result in the AP transmitting frames without the appropriate QoS markings, affecting voice quality.

In outdoor WLAN deployments, environmental factors such as moisture, dust, and temperature fluctuations can adversely affect networking equipment. To protect access points from these elements, NEMA-rated enclosures are utilized. These enclosures are designed to safeguard equipment against environmental hazards, ensuring reliable operation in outdoor settings. Indoor deployments typically do not require such protective measures, making NEMA enclosures a distinctive requirement for outdoor installations.

Polycase

In scenarios where physical access to the ceiling is restricted, such as when ladders are not permitted, using a laser distance measurer is the most accurate and cost-effective method to determine ceiling height. Laser measurers provide precise distance readings by emitting a laser beam to the target surface and calculating the time it takes for the reflection to return. This tool eliminates the need for estimations or indirect calculations, ensuring accurate measurements essential for WLAN design.

In stadium environments where aesthetics are crucial, installing APs in enclosures under seats or on handrails is a common practice.This approach conceals the APs, maintaining the venue's visual appeal while ensuring optimal wireless coverage.

The CWDP-305 Official Study and Reference Guide discusses the importance of aesthetic considerations in WLAN design and recommends discreet installation methods in public venues like stadiums.

In 802.1X/EAP authentication, the shared secret between the authenticator and the RADIUS server must match. If clients cannot associate and the RADIUS server is operational, the next step is to verify that the shared secret configured on both the authenticator and the RADIUS server is identical. A mismatch will prevent successful authentication.

Comprehensive and Detailed Explanation:

When calibrating a floor plan for predictive and manual site surveys, using the longest available measurement, such as a straight exterior wall, provides the most accurate and reliable RF data.Longer measurements reduce the impact of scaling errors, ensuring that the entire floor plan is accurately represented in the survey software.Shorter measurements, like those of a single ceiling tile or doorway, can introduce significant scaling errors over larger distances.