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When configuring the role settings by Mobility Gateway in ClearPass, a network engineer notices that the elements required for the role are reusable. What is the primary benefit of this reusability feature?
Answer : C
ClearPass is built on an object-oriented configuration model. Elements such as Role Mappings, Enforcement Profiles, and Service Rules are modular. This reusability means an engineer can define a 'Corporate-User' enforcement profile once and apply it to a dozen different services (Wireless, Wired, VPN). This ensures policy consistency across the organization, significantly reduces administrative overhead, and minimizes the risk of configuration errors.
A network administrator is troubleshooting an issue where endpoints are not receiving updated enforcement decisions after a second authentication. What is the most likely configuration change needed?
Answer : A
If 'Use Cached Results' is enabled in the enforcement configuration, ClearPass may continue to apply the same access level from the previous authentication attempt without re-evaluating the current data. Disabling this feature forces ClearPass to perform a fresh evaluation of the endpoint's attributes---including any newly updated posture tokens from OnGuard---every time a re-authentication occurs.
A network engineer needs to ensure secure and reliable communication between network devices and the RADIUS server over an unsecured network. Which configuration should they implement?
Answer : A
Traditional RADIUS (UDP 1812/1813) only encrypts the password attribute; the rest of the packet (including the username) is sent in cleartext. Furthermore, UDP is connectionless and can be unreliable over WAN links. RadSec solves both issues by wrapping RADIUS in TLS, providing full-packet encryption, and using TCP, which provides guaranteed delivery and better handling of MTU issues/fragmentation across unsecured public networks.
An IT specialist is configuring authentication methods for a network resource in ClearPass. They need to ensure that only valid methods are used and that the client credentials are authenticated against multiple sources in a specific order. What should the specialist do?
Answer : C
ClearPass services are designed to be flexible with identity sources. In the Authentication tab of a service configuration, an administrator can add multiple sources (e.g., Active Directory, Guest Repository, and Local User Repository). ClearPass processes these sources in the exact order they appear in the list---attempting to authenticate the user against the first source, and moving to the next only if the user is not found in the previous one.
A network engineer is troubleshooting an issue where a factory default Aruba Network device is not redirecting DNS requests correctly. The device is supposed to intercept requests for 'securelogin.hpe.com' but is failing to do so. What is a likely cause of this issue?
Answer : B
Aruba devices use a default internal URL (securelogin.hpe.com or securelogin.arubanetworks.com) to intercept guest traffic. For this redirection to work over HTTPS, the gateway must present a certificate that validly represents that name. If the Common Name (CN) in the gateway's certificate does not match the URL the device is trying to intercept, the HTTPS handshake will fail, and the redirection process will be interrupted or blocked by the browser.
