A switch has a limited power budget that dictates how many PoE devices it can support at once. Even if the cable is functional and supports data (as seen with the laptop test), the switch may have exhausted its PoE budget, making it unable to provide power to additional devices. The CWDP-305 Study Guide highlights the importance of understanding power budgets when designing and deploying infrastructure, especially with newer AP models that draw more power under 802.3at or 802.3bt.
Reference: CWDP-305 Study Guide, Chapter on Infrastructure Design - "Power requirements and PoE budgeting"

Comprehensive and Detailed Explanation:
When designing a WLAN for a new facility, especially one that hasn't been constructed yet, apredictive site surveyis the most appropriate initial step. Predictive surveys utilize software tools to model RF behavior based on building materials, floor plans, and environmental factors. This method allows for planning of AP placements, channel assignments, and coverage areas without the need for physical access to the site.
Given the requirements for dual-spectrum 802.11n, voice support, and location tracking, a predictive survey can help in:
Estimating the number and placement of APs to ensure adequate coverage and capacity.
Planning for voice over WLAN (VoWLAN) by modeling for low-latency and seamless roaming.
Designing for location tracking by ensuring sufficient AP density and placement for accurate triangulation.
Reference:CWDP-305 Study Guide, Chapter on Advanced Site Surveys - Predictive Survey Methodologies.

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

EAP-TTLS (Extensible Authentication Protocol - Tunneled Transport Layer Security) is an authentication protocol that allows the use of client credentials (such as usernames and passwords) while requiring a server- side certificate. Client-side certificates are optional, making it a flexible solution for environments where deploying certificates to all clients is impractical. This method establishes a secure tunnel between the client and server, ensuring that credentials are protected during the authentication process.
Reference: CWDP-305 Official Study and Reference Guide, Chapter on Designing for Specific Applications

Comprehensive and Detailed Explanation:
WPA/WPA2-Personal is typically used in scenarios where:
A:Client devices lack support for 802.1X/EAP, making enterprise authentication methods unfeasible.
C:Devices are provisioned in bulk with shared credentials, simplifying deployment without the complexity of individual 802.1X configurations.
However:
B:High-latency roaming is undesirable; low-latency is preferred for seamless connectivity.
D:Requiring unique access credentials aligns more with WPA/WPA2-Enterprise, which supports individual authentication.
Reference:CWDP-305 Study Guide, Chapter on Designing for Specific Applications - Security Considerations.