다음으로 이어서 보기 좋은 문제 Network Advanced A BGP community policy looks symmetric and one route reflector still leaks defaults Steady-state updates look fine, but a refresh path removes the additive community used to block default export. Network Intermediate A Cisco GRE tunnel forms and OSPF still flaps The tunnel is up, but one path keeps fragmenting LS updates differently and resets adjacency under load. Network Intermediate A split-horizon DNS design is correct and one branch still resolves the public address Authoritative zones are right, but the branch forwarder keeps matching a stale stub before the internal view is consulted. Network Intermediate A resolver update is correct and one site still gets stale answers The config is fixed, but one cache tier still serves the previous answer set.
Network Advanced A BGP community policy looks symmetric and one route reflector still leaks defaults Steady-state updates look fine, but a refresh path removes the additive community used to block default export.
Network Intermediate A Cisco GRE tunnel forms and OSPF still flaps The tunnel is up, but one path keeps fragmenting LS updates differently and resets adjacency under load.
Network Intermediate A split-horizon DNS design is correct and one branch still resolves the public address Authoritative zones are right, but the branch forwarder keeps matching a stale stub before the internal view is consulted.
Network Intermediate A resolver update is correct and one site still gets stale answers The config is fixed, but one cache tier still serves the previous answer set.