Question 590
During a planned campus-network change at a university faculty building in Boston, operators discover that a peering security change produces an authentication mismatch even though the transport path is active. The design must preserve teaching tools and shared printers. Which post-change observation is the strongest acceptance evidence?
Explanation
Correct Answer
This observation tests the BGP peer state and AS compatibility requirement at a university faculty building in Boston. The expected result is that the BGP session establishes and only the intended network prefixes appear with accepted next hops. The necessary correction is to validate BGP neighbor reachability and the local/remote AS relationship, then confirm authorized prefix advertisement; a saved configuration alone would not prove it is working. In this case, the observed fault is that a peering security change produces an authentication mismatch even though the transport path is active.
Incorrect Answers
At a university faculty building in Boston, the observation may be useful for a separate OSPF path metric and convergence test, but it does not establish that a peering security change produces an authentication mismatch even though the transport path is active has been resolved. The relevant check is the BGP peer state and AS compatibility outcome.
At a university faculty building in Boston, this measures a different network requirement, Dynamic route filtering and redistribution. The case describes that a peering security change produces an authentication mismatch even though the transport path is active, so accepting this result would leave the primary fault without direct verification.
At a university faculty building in Boston, the observation may be useful for a separate OSPF neighbor prerequisites and states test, but it does not establish that a peering security change produces an authentication mismatch even though the transport path is active has been resolved. The relevant check is the BGP peer state and AS compatibility outcome.