Question 280
At Central Hall, a new campus fiber uplink should be preferred but interface costs retain old values. Which check provides the most useful information for fixing this deployment?
Explanation
Correct Answer
For Central Hall, the decisive mechanism is OSPF metric selection. OSPF chooses shortest paths based on cumulative advertised link cost. Inspect SPF result per-interface cost and best-route selection is the most direct way to isolate this particular failure before making a change.
Incorrect Answers
This is relevant to IPv6 OSPFv3 adjacency, where oSPFv3 exchanges IPv6 routing information through a separately configured protocol process In the Central Hall case, Those observations could be normal while the stated fault persists. The specific mechanism is oSPF chooses shortest paths based on cumulative advertised link cost
This is relevant to First-hop gateway election, where VRRP abstracts the default gateway across eligible routing devices In the Central Hall case, Those observations could be normal while the stated fault persists. The specific mechanism is oSPF chooses shortest paths based on cumulative advertised link cost
This is relevant to DHCP relay return routing, where dHCP relay requires a valid return path to the relay address and client network In the Central Hall case, Those observations could be normal while the stated fault persists. The specific mechanism is oSPF chooses shortest paths based on cumulative advertised link cost