Question 250
At Pine Valley Telecom, the provider infrastructure team is preparing a regional hub modernization. The operational constraint is planned fault-domain isolation. A production-readiness reviewer asks for proof addressing: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. Which result BEST demonstrates that this specific issue was resolved?
Explanation
Correct Answer
A role-by-role test confirms that guests, employees and IoT devices reach only authorized services. This is the relevant acceptance observation for the reported issue: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The intended corrective choice is: Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation. At Pine Valley Telecom, this outcome verifies actual operation under planned fault-domain isolation, rather than only a ticket marked complete.
Incorrect Answers
Approved supplicants receive authorized access and unknown clients remain in the intended restricted state. Such an observation would verify a separate issue: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. It would follow the distinct action: Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior. Here the reported failure is Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The decisive result for Pine Valley Telecom must instead be: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.
Access logs identify individual authorized operators and restricted users cannot change protected settings. Such an observation would verify a separate issue: A shared administrator account has full rights from every network and no centralized audit trace. It would follow the distinct action: Use authenticated role-based administration with AAA and appropriate management-plane restrictions. Here the reported failure is Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The decisive result for Pine Valley Telecom must instead be: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.
Rogue DHCP offers from edge ports are rejected and the legitimate server lease exchange succeeds. Such an observation would verify a separate issue: An attacker on an access port sends forged DHCP replies claiming to be the default gateway server. It would follow the distinct action: Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary. Here the reported failure is Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The decisive result for Pine Valley Telecom must instead be: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.