The route "10.20.0.0/22, vrf default via 10.1.1.1, [110/200]" indicates that it is an OSPF route. This is evidenced by the administrative distance and metric "[110/200]" where 110 is the default administrative distance for OSPF routes.

The Aruba CX 6300 Series is an ideal access switch for medium to high-density client environments, offering a range of models that can accommodate various port densities and types. For a distribution rack supporting 200-380 clients, printers, and APs, the CX 6300 provides the necessary port density and performance capabilities, including high-speed uplinks, support for Class 4 PoE (PoE+), and stacking capabilities. This series is cost-effective and designed for enterprises requiring reliable connectivity and consistent performance. The other options, such as the CX 6400, CX 6200, and CX 6000, may either be over-specified and more expensive (CX 6400), not offer the necessary port density (CX 6200), or not exist in the product line (CX 6000).

Signal to noise ratio (SNR) is a measure that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to the noise power, often expressed in decibels (dB). A high SNR means that the signal is clear and easy to detect or interpret, while a low SNR means that the signal is corrupted or obscured by noise and may be difficult to distinguish or recover1.
When the signal from an AP Access Point. AP is a device that allows wireless devices to connect to a wired network using Wi-Fi, or related standards. weakens by being absorbed as it moves through an object, such as a wall or a furniture, the signal power decreases. This reduces the SNR and affects the quality of the wireless connection. The noise power may also increase due to interference from other sources, such as other APs or devices operating in the same frequency band2. Therefore, the correct answer is that SNR decreases when the signal from an AP weakens by being absorbed as it moves through an object.
References:
1 https://en.wikipedia.org/wiki/Signal-to-noise_ratio
2 https://documentation.meraki.com/MR/Wi-Fi_Basics_and_Best_Practices/Signal-to- Noise_Ratio_%28SNR%2

Explanation
EAP-TEAP is a tunnel-based authentication method that supports both device and user authentication within a single RADIUS session. ClearPass 6.9 supports EAP-TEAP as anauthentication method for Windows 10 clients. References:
https://www.arubanetworks.com/techdocs/ClearPass/6.9/Guest/Content/CPPM_UserGuide/EAP-TEAP/EAP-TE

ICMP (Internet Control Message Protocol) is used by network devices to send error and operational information related to IP communications. It is used to send messages like "destination unreachable" or
"time exceeded" when there are issues in IP communication