Exam Bundle

That observation verifies eigrp named mode af-interface in a different situation, such as when a named EIGRP configuration has the correct AS but an interface is not participating in its address family. For the reported eigrp variance unequal cost incident at a bank network operations team in London, the required acceptance evidence is: Multiple eligible unequal-cost routes appear in the routing table without admitting an unsafe loop. This other result does not test that condition directly.

That observation verifies eigrp k-value disagreement in a different situation, such as when eIGRP hello packets arrive but routers refuse adjacency because composite-metric K values do not agree. For the reported eigrp variance unequal cost incident at a bank network operations team in London, the required acceptance evidence is: Multiple eligible unequal-cost routes appear in the routing table without admitting an unsafe loop. This other result does not test that condition directly.

That observation verifies eigrp ipv6 address family in a different situation, such as when iPv4 EIGRP is healthy but IPv6 routes are absent because the appropriate IPv6 routing address family was never activated. For the reported eigrp variance unequal cost incident at a bank network operations team in London, the required acceptance evidence is: Multiple eligible unequal-cost routes appear in the routing table without admitting an unsafe loop. This other result does not test that condition directly.

That approach is relevant to aaa accounting records, such as when management logins succeed but the audit system has no connection or command records. That is a different root cause from the aaa server unavailable versus reject fault observed at a telecommunications branch in Oslo. Applying that approach alone would not establish the required result: A failed server connection triggers the documented fallback while server-issued rejections remain enforced.

That approach is relevant to tacacs+ transport port, such as when a firewall allows RADIUS UDP but TACACS+ management logins still fail because its dedicated transport is blocked. That is a different root cause from the aaa server unavailable versus reject fault observed at a telecommunications branch in Oslo. Applying that approach alone would not establish the required result: A failed server connection triggers the documented fallback while server-issued rejections remain enforced.

That approach is relevant to radius authentication transport, such as when a router's RADIUS server is reachable by ICMP but RADIUS requests time out because authentication and accounting UDP ports are blocked. That is a different root cause from the aaa server unavailable versus reject fault observed at a telecommunications branch in Oslo. Applying that approach alone would not establish the required result: A failed server connection triggers the documented fallback while server-issued rejections remain enforced.

That observation verifies aaa server group order in a different situation, such as when a local database is used first even when the desired policy requires TACACS+ primary authentication with local fallback only on error. For the reported aaa server unavailable versus reject incident at a telecommunications branch in Oslo, the required acceptance evidence is: A failed server connection triggers the documented fallback while server-issued rejections remain enforced. This other result does not test that condition directly.

That observation verifies aaa method list not applied in a different situation, such as when the intended named login method list exists but VTY access continues to use another authentication path. For the reported aaa server unavailable versus reject incident at a telecommunications branch in Oslo, the required acceptance evidence is: A failed server connection triggers the documented fallback while server-issued rejections remain enforced. This other result does not test that condition directly.

That observation verifies aaa lockout recovery in a different situation, such as when an administrator enables centralized-only AAA on a remote router without a validated recovery path and loses administrative access when the WAN fails. For the reported aaa server unavailable versus reject incident at a telecommunications branch in Oslo, the required acceptance evidence is: A failed server connection triggers the documented fallback while server-issued rejections remain enforced. This other result does not test that condition directly.

That approach is relevant to ip sla state versus reachability, such as when an operator sees the IP SLA probe return an over-threshold result and assumes the same as complete reachability failure. That is a different root cause from the ip sla tracked floating default fault observed at a medical campus infrastructure team in Raleigh. Applying that approach alone would not establish the required result: The primary route withdraws when the tracked remote service becomes unreachable and the backup path activates.

That approach is relevant to ip sla http operation, such as when iCMP probes succeed but an application URL fails, and a network team considers basic ping sufficient proof of service health. That is a different root cause from the ip sla tracked floating default fault observed at a medical campus infrastructure team in Raleigh. Applying that approach alone would not establish the required result: The primary route withdraws when the tracked remote service becomes unreachable and the backup path activates.

That approach is relevant to ip sla schedule omitted, such as when an IP SLA ICMP echo operation has been defined but never executes because its schedule was not activated. That is a different root cause from the ip sla tracked floating default fault observed at a medical campus infrastructure team in Raleigh. Applying that approach alone would not establish the required result: The primary route withdraws when the tracked remote service becomes unreachable and the backup path activates.

That observation verifies ip sla source interface in a different situation, such as when an SLA probe reports failure because it leaves from the wrong source address or VRF compared with production application flows. For the reported ip sla tracked floating default incident at a medical campus infrastructure team in Raleigh, the required acceptance evidence is: The primary route withdraws when the tracked remote service becomes unreachable and the backup path activates. This other result does not test that condition directly.

That observation verifies ip sla state versus reachability in a different situation, such as when an operator sees the IP SLA probe return an over-threshold result and assumes the same as complete reachability failure. For the reported ip sla tracked floating default incident at a medical campus infrastructure team in Raleigh, the required acceptance evidence is: The primary route withdraws when the tracked remote service becomes unreachable and the backup path activates. This other result does not test that condition directly.

That observation verifies ip sla jitter measurement in a different situation, such as when a voice service suffers variation in packet delay but is monitored only with a simple ICMP success rate. For the reported ip sla tracked floating default incident at a medical campus infrastructure team in Raleigh, the required acceptance evidence is: The primary route withdraws when the tracked remote service becomes unreachable and the backup path activates. This other result does not test that condition directly.

That approach is relevant to vrf selective leaking, such as when a shared monitoring server in another VRF is unreachable even though each tenant's local routing works. That is a different root cause from the bgp as path loop detection fault observed at a managed services backbone in Amsterdam. Applying that approach alone would not establish the required result: The rejected looped advertisement is absent while a valid AS_PATH alternative can be selected.

That approach is relevant to eigrp delay/bandwidth metric, such as when an interface's documented bandwidth differs from its configured EIGRP bandwidth and delay inputs, creating unexpected path costs. That is a different root cause from the bgp as path loop detection fault observed at a managed services backbone in Amsterdam. Applying that approach alone would not establish the required result: The rejected looped advertisement is absent while a valid AS_PATH alternative can be selected.

That approach is relevant to mutual redistribution metric integrity, such as when bGP-origin routes entering EIGRP are given arbitrary seed metrics that make a slow backup path appear better than intended. That is a different root cause from the bgp as path loop detection fault observed at a managed services backbone in Amsterdam. Applying that approach alone would not establish the required result: The rejected looped advertisement is absent while a valid AS_PATH alternative can be selected.

That observation verifies mutual redistribution metric integrity in a different situation, such as when bGP-origin routes entering EIGRP are given arbitrary seed metrics that make a slow backup path appear better than intended. For the reported bgp as path loop detection incident at a managed services backbone in Amsterdam, the required acceptance evidence is: The rejected looped advertisement is absent while a valid AS_PATH alternative can be selected. This other result does not test that condition directly.

That observation verifies as path prepending inbound control in a different situation, such as when traffic from external networks enters via the undesired backup link even though local preference was changed only inside the enterprise. For the reported bgp as path loop detection incident at a managed services backbone in Amsterdam, the required acceptance evidence is: The rejected looped advertisement is absent while a valid AS_PATH alternative can be selected. This other result does not test that condition directly.

That observation verifies ebgp nonconnected loopback in a different situation, such as when bGP TCP connectivity over loopbacks fails because a multihop eBGP peer relies on a default one-hop TTL. For the reported bgp as path loop detection incident at a managed services backbone in Amsterdam, the required acceptance evidence is: The rejected looped advertisement is absent while a valid AS_PATH alternative can be selected. This other result does not test that condition directly.

That approach is relevant to dmvpn tunnel key inconsistency, such as when gRE-encapsulated packets are rejected because the DMVPN endpoints use incompatible tunnel key settings. That is a different root cause from the dmvpn wrong tunnel source fault observed at a manufacturing group in Copenhagen. Applying that approach alone would not establish the required result: The spoke can establish transport to the hub's NBMA address through the approved WAN path.

That approach is relevant to dmvpn mgre hub, such as when a single-hub DMVPN must support many dynamically registered spokes, but the hub tunnel is configured as a fixed point-to-point GRE tunnel. That is a different root cause from the dmvpn wrong tunnel source fault observed at a manufacturing group in Copenhagen. Applying that approach alone would not establish the required result: The spoke can establish transport to the hub's NBMA address through the approved WAN path.

That approach is relevant to dmvpn front-door vrf, such as when the tunnel's physical WAN interface belongs to a transport VRF but tunnel underlay lookups incorrectly use the global table. That is a different root cause from the dmvpn wrong tunnel source fault observed at a manufacturing group in Copenhagen. Applying that approach alone would not establish the required result: The spoke can establish transport to the hub's NBMA address through the approved WAN path.

That observation verifies dmvpn nhrp network id mismatch in a different situation, such as when the hub and spoke use different NHRP network identifiers despite otherwise consistent tunnel addressing. For the reported dmvpn wrong tunnel source incident at a manufacturing group in Copenhagen, the required acceptance evidence is: The spoke can establish transport to the hub's NBMA address through the approved WAN path. This other result does not test that condition directly.

That observation verifies nhrp cache verification in a different situation, such as when a direct spoke route exists but its tunnel next hop lacks a corresponding NHRP resolution entry. For the reported dmvpn wrong tunnel source incident at a manufacturing group in Copenhagen, the required acceptance evidence is: The spoke can establish transport to the hub's NBMA address through the approved WAN path. This other result does not test that condition directly.

That observation verifies dmvpn front-door vrf in a different situation, such as when the tunnel's physical WAN interface belongs to a transport VRF but tunnel underlay lookups incorrectly use the global table. For the reported dmvpn wrong tunnel source incident at a manufacturing group in Copenhagen, the required acceptance evidence is: The spoke can establish transport to the hub's NBMA address through the approved WAN path. This other result does not test that condition directly.

That approach is relevant to log device identifier, such as when a multi-router syslog collector cannot distinguish message origin because all records have the same ambiguous sender name. That is a different root cause from the syslog transport acl fault observed at a managed WAN provider in Amsterdam. Applying that approach alone would not establish the required result: Packets reach the collector and event entries appear under the expected device.

That approach is relevant to syslog remote destination, such as when a router logs events locally but nothing reaches the central collector because logging host was never configured. That is a different root cause from the syslog transport acl fault observed at a managed WAN provider in Amsterdam. Applying that approach alone would not establish the required result: Packets reach the collector and event entries appear under the expected device.

That approach is relevant to syslog severity threshold, such as when informational interface events never reach syslog because the configured logging trap level captures only severe messages. That is a different root cause from the syslog transport acl fault observed at a managed WAN provider in Amsterdam. Applying that approach alone would not establish the required result: Packets reach the collector and event entries appear under the expected device.

That observation verifies streaming telemetry subscription in a different situation, such as when telemetry measurements stop appearing even though periodic CLI monitoring works because the subscription destination is unreachable. For the reported syslog transport acl incident at a managed WAN provider in Amsterdam, the required acceptance evidence is: Packets reach the collector and event entries appear under the expected device. This other result does not test that condition directly.

That observation verifies logging buffer too small in a different situation, such as when relevant CLI log evidence disappears during an incident because the local logging buffer wraps almost immediately. For the reported syslog transport acl incident at a managed WAN provider in Amsterdam, the required acceptance evidence is: Packets reach the collector and event entries appear under the expected device. This other result does not test that condition directly.

That observation verifies syslog remote destination in a different situation, such as when a router logs events locally but nothing reaches the central collector because logging host was never configured. For the reported syslog transport acl incident at a managed WAN provider in Amsterdam, the required acceptance evidence is: Packets reach the collector and event entries appear under the expected device. This other result does not test that condition directly.