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Exam scenarios present a symptom and expect you to identify the likely cause or next diagnostic step. Unlike configuration questions, they test judgment. The key skill: read the scenario carefully, identify which layer is failing, and choose the diagnostic step that most efficiently isolates the problem.
A user reports they can reach the file server but not the internet. Their default gateway is 10.10.10.1. Ping 10.10.10.1 succeeds; ping 8.8.8.8 fails. Other users on the same VLAN are working fine. What's your next step?
The scenario above. All other users on the same VLAN work fine. This specific user has connectivity issues only to the internet.
Select the safest next action.
Two routers running OSPF are stuck in EXSTART state. They're on the same subnet, same area, same timers. What's your diagnostic step?
Select the safest next action.
Two scenario mistakes on the exam: (1) choosing a fix instead of a diagnostic step — the question often asks what to check next, not what to fix; (2) overlooking what the scenario tells you (e.g., 'other users on the same VLAN work' rules out shared-path issues). Read the whole scenario before answering.
Finish the lesson once you have worked through the material. This awards ★ 60 XP.