Certification793 problems· 22 reviewed

CCNA

793 incident response problems that help with CCNA prep.

All problems (793)

NETWORK-1488A Cloudflare Tunnel upgrade restores websockets and one path still dropsWebSocket sessions still die after a cloudflared upgrade, but only through one proxy path.NetworkAdvanced11 minPro NETWORK-1557A NetFlow exporter migrates and one collector still attributes traffic to the old zoneTraffic is misattributed only after a NetFlow exporter restart and migration.NetworkAdvanced11 minPro NETWORK-1565A Palo Alto decryption profile updates and one rule still exempts trafficOne firewall rule still exempts traffic after decryption policy updates.NetworkAdvanced11 minPro NETWORK-1486A Palo Alto HA failover succeeds and inbound traffic still diesInbound traffic drops briefly after firewall failover even though the HA pair reports a clean transition.NetworkAdvanced11 minPro NETWORK-1499A Palo Alto URL category override deploys and one browser still hits the old categoryA URL category override works for most traffic and fails for a browser flow that bypasses decrypt policy.NetworkAdvanced11 minPro NETWORK-1509A URL category override deploys and one browser still hits the old categoryA URL category override works for most traffic and fails for a browser flow that bypasses decrypt.NetworkAdvanced11 minPro NETWORK-1519A URL category override deploys and one browser still sees the old policyA URL category override works for most traffic and fails for one decrypt-bypass browser flow.NetworkAdvanced11 minPro NETWORK-1529A URL category override deploys and one browser still sees the old policyA URL override works for most traffic and fails for one bypass flow.NetworkAdvanced11 minPro NETWORK-1568An Envoy retry policy changes and one cluster still retries the old priority setOne cluster retries the wrong backend set after an Envoy policy change.NetworkAdvanced11 minPro NETWORK-1562An EVPN import policy is updated and one leaf still learns the old route-targetOne EVPN leaf keeps learning a retired route-target after policy updates.NetworkAdvanced11 minPro NETWORK-1551An NGINX gateway reloads and one location still uses the old upstreamOne route keeps hitting the old upstream after a gateway reload.NetworkAdvanced11 minPro NETWORK-1495An NGINX ingress proxy serves HTTP/2 correctly and one backend still sees plain HTTPA migrated backend still receives HTTP on one path after the rest of the platform has moved to HTTPS upstreams.NetworkAdvanced11 minPro NETWORK-1505An NGINX upstream migration enables TLS and one backend still sees HTTPA migrated backend still receives HTTP on one path after the rest of the platform moves to HTTPS upstreams.NetworkAdvanced11 minPro NETWORK-1491An OSPF adjacency reaches ExStart and resetsAn OSPF adjacency flaps only after failover on a firewall cluster sitting between routers.NetworkAdvanced11 minPro NETWORK-1501An OSPF adjacency reaches ExStart and resetsOSPF flaps only after firewall failover between two routed segments.NetworkAdvanced11 minPro NETWORK-1511An OSPF failover looks clean and adjacency still resetsOSPF flaps only after a firewall cluster failover between routed segments.NetworkAdvanced11 minPro NETWORK-1531An OSPF failover looks clean and adjacency still resetsOSPF flaps only after a firewall cluster failover.NetworkAdvanced11 minPro NETWORK-1515An upstream TLS migration succeeds and one backend still receives HTTPA migrated backend still receives HTTP on one path after the platform moves to HTTPS upstreams.NetworkAdvanced11 minPro NETWORK-1525An upstream TLS migration succeeds and one backend still receives HTTPA migrated backend still receives HTTP on one path after moving to HTTPS upstreams.NetworkAdvanced11 minPro NETWORK-1485A BGP community policy looks symmetric and one route reflector still leaks defaultsDefault routes leak only during maintenance refreshes and not during normal convergence.NetworkAdvanced12 minPro