Cisco 350-101 Practice Test Questions Answers

In wireless networks, the 20 MHz channel width is the standard and narrowest channel allocation in the 2.4 GHz frequency band. Using narrower channels reduces adjacent-channel interference and allows for better coexistence in high-density environments, which is particularly important in the crowded 2.4 GHz spectrum. A 20 MHz channel uses less RF bandwidth than 40 MHz or 80 MHz channels, providing more non-overlapping channels (channels 1, 6, and 11 in 2.4 GHz) to reduce co-channel interference. Option B is incorrect, as channel width does not inherently increase authentication handoff frequency; handoff behavior is determined by RSSI, client roaming thresholds, and 802.11r fast roaming settings. Option C describes client reassociation support, which is handled by the wireless controller and client firmware, not the channel width itself. Option D is incorrect because wider channels (40 MHz, 80 MHz) provide higher throughput than 20 MHz, at the expense of increased interference potential. Cisco Wireless Core Technologies emphasize that 20 MHz channels are preferred for dense deployments in the 2.4 GHz band to maximize non-overlapping channels and reduce interference, ensuring predictable coverage and reliable client connectivity. Reference topics:RF Fundamentals — 20 MHz channels, 2.4 GHz spectrum planning, interference management, channel allocation.

Cisco Catalyst Center uses its Event Notifications framework to alert operations teams when Assurance detects client, device, or wireless issues. The correct workflow is not a simple email-address entry under Issue Settings; it is an event subscription that binds selected issue events to a notification channel such as EMAIL. Cisco’s Catalyst Assurance documentation states that, when a specific Assurance issue is triggered and its status changes, Assurance can generate REST or email notifications, and the workflow opens thePlatform > Developer Toolkit > Event Notificationswindow from Manage Subscription. The same guide confirms that EMAIL is one of the supported notification channels and that the EMAIL notification details include sender, recipient, and subject fields. Cisco’s Platform User Guide also defines Event Notifications as the place to “view and subscribe to specific events” and gives the GUI path asPlatform > Developer Toolkit > Event Notifications. Therefore, option B is correct. SMTP/email destination configuration may be a prerequisite, but the required alerting action is creating the event notification subscription. Reference topics: Catalyst Center Assurance, Event Notifications, Wireless Monitoring and Management.

The correct authentication method isEAP-TLS. WPA2-Enterprise uses 802.1X/EAP authentication rather than a pre-shared key, and the supplicant, authenticator, and RADIUS authentication server participate in the enterprise authentication exchange. Cisco documentation states that in enterprise WPA/WPA2 operation, 802.1X/EAP is used for authentication and provides strong authentication between the client and authentication server.

The decisive requirement in the question iscertificate-based mutual authentication requiring both client and server certificates. Cisco explicitly describes EAP-TLS as requiring both server-side and client-side certificates, while PEAP requires only a server-side certificate and normally authenticates the client with password-based credentials inside the protected tunnel. Cisco Secure ACS documentation also states that EAP-TLS uses the certificates of the authentication server and the end-user client, enforcing mutual authentication.

MSCHAPv2 is a password-based inner authentication method, not certificate-based mutual authentication. PEAP protects credential exchange with a server certificate but does not inherently require a client certificate. TEAP can support flexible tunneled authentication, but the strict client-and-server certificate requirement maps directly toEAP-TLS. Reference topic:Client Connectivity Configuration — WPA2-Enterprise, 802.1X supplicant configuration, EAP methods, certificates, and RADIUS authentication.

When a radio wavebends around an obstaclein its path, this phenomenon is calleddiffraction. Diffraction allows the RF signal to reach areas that are not in the direct line of sight of the transmitter, such as behind walls, corners, or other obstructions. The amount of bending depends on the wavelength of the signal relative to the size of the obstacle—longer wavelengths (lower frequencies) diffract more effectively than shorter wavelengths.

This property is crucial in wireless network design, especially in enterprise or mesh deployments, because it enables coverage in complex indoor environments and around obstructions where direct line-of-sight communication is impossible. Diffraction differs from other RF phenomena:absorption(option A) occurs when RF energy is partially absorbed by materials, reducing signal strength;diffusion(option B) refers to scattering of the signal in multiple directions; andreflection(option C) occurs when RF waves bounce off surfaces like walls or ceilings, which can lead to multipath interference.

Cisco wireless design guides emphasize understanding diffraction forcoverage planning, AP placement, and optimizing signal propagationin indoor and campus deployments, ensuring that signals can adequately reach shadowed or obstructed areas without excessive loss or dead spots. Reference topic:RF Fundamentals — diffraction, reflection, absorption, and indoor wireless propagation.

A line-of-sight (LOS) RF connection requires a clear, unobstructed path between the transmitter and receiver. This ensures that the transmitted signal reaches the receiving device without attenuation, reflection, or diffraction caused by physical obstacles such as walls, furniture, or other structures. LOS conditions are critical for high-frequency RF links, particularly in the 5 GHz band, where signals cannot easily penetrate objects. While multipath propagation (Option A) and MIMO (Option B) techniques enhance throughput and reliability in non-line-of-sight environments, they do not satisfy the definition of LOS. Reflections (Option C) actually introduce delays, fading, and interference, which can degrade signal quality. In Cisco Wireless Core Technologies, understanding LOS is foundational for designing point-to-point wireless backhaul links, outdoor Wi-Fi deployments, and high-performance campus networks. Ensuring LOS minimizes path loss, maximizes received signal strength, and supports predictable coverage patterns. Proper site surveys, RF planning, and AP placement are used to maintain LOS where required, particularly for directional antennas or high-gain links. Reference topics:RF Fundamentals — Line-of-Sight (LOS), RF propagation, path loss, multipath effects, MIMO considerations.