Exam Bundle

That observation verifies vpnv4 bgp family in a different situation, such as when pE loopback BGP peers are Established for ordinary IPv4 unicast but customer VPN prefixes are absent. For the reported bgp extended community transmission incident at a manufacturing group in Copenhagen, the required acceptance evidence is: Received VPNv4 paths retain the intended RT and are imported only into authorized VRFs. This other result does not test that condition directly.

That observation verifies no unsolicited inter-vrf communication in a different situation, such as when two VRFs on one PE have valid routes but customer staff expect automatic communication across them. For the reported bgp extended community transmission incident at a manufacturing group in Copenhagen, the required acceptance evidence is: Received VPNv4 paths retain the intended RT and are imported only into authorized VRFs. This other result does not test that condition directly.

That observation verifies route-target import missing in a different situation, such as when the remote PE receives a VPNv4 route but the destination tenant VRF does not import it because RT values do not match. For the reported bgp extended community transmission incident at a manufacturing group in Copenhagen, the required acceptance evidence is: Received VPNv4 paths retain the intended RT and are imported only into authorized VRFs. This other result does not test that condition directly.

That approach is relevant to bgp network statement exact match, such as when a BGP network statement for a /24 originates nothing because only a /16 exists in the local RIB. That is a different root cause from the eigrp seed metric on redistribution fault observed at a hospital enterprise WAN in Melbourne. Applying that approach alone would not establish the required result: External EIGRP routes are installed with plausible composite metrics after the injection.

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 eigrp seed metric on redistribution fault observed at a hospital enterprise WAN in Melbourne. Applying that approach alone would not establish the required result: External EIGRP routes are installed with plausible composite metrics after the injection.

That approach is relevant to ospf default originate conditional, such as when the border router should originate an OSPF default only while it has a usable upstream default but neighbors receive none. That is a different root cause from the eigrp seed metric on redistribution fault observed at a hospital enterprise WAN in Melbourne. Applying that approach alone would not establish the required result: External EIGRP routes are installed with plausible composite metrics after the injection.

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 eigrp seed metric on redistribution incident at a hospital enterprise WAN in Melbourne, the required acceptance evidence is: External EIGRP routes are installed with plausible composite metrics after the injection. This other result does not test that condition directly.

That observation verifies redistribution route-map omission in a different situation, such as when a router leaks sensitive static prefixes into OSPF because redistribute static has no route policy. For the reported eigrp seed metric on redistribution incident at a hospital enterprise WAN in Melbourne, the required acceptance evidence is: External EIGRP routes are installed with plausible composite metrics after the injection. This other result does not test that condition directly.

That observation verifies ospf external subnets redistribution in a different situation, such as when a redistribution statement is intended to carry multiple classless subnets into OSPF but only classful behavior is observed in the configured IOS context. For the reported eigrp seed metric on redistribution incident at a hospital enterprise WAN in Melbourne, the required acceptance evidence is: External EIGRP routes are installed with plausible composite metrics after the injection. This other result does not test that condition directly.

That approach is relevant to acl counter troubleshooting, such as when a new permit rule is blamed for a dropped service even though its hit counter never increases. That is a different root cause from the acl first-match ordering fault observed at a government campus in Canberra. Applying that approach alone would not establish the required result: The restricted port's hit counter grows on the deny entry and permitted flows still pass.

That approach is relevant to acl implicit deny, such as when a router ACL was built with one permit line and unexpectedly blocks all other traffic. That is a different root cause from the acl first-match ordering fault observed at a government campus in Canberra. Applying that approach alone would not establish the required result: The restricted port's hit counter grows on the deny entry and permitted flows still pass.

That approach is relevant to time-based acl inactive, such as when a time-range ACL permits scheduled maintenance only during a defined window, but the rule is ineffective due to clock drift. That is a different root cause from the acl first-match ordering fault observed at a government campus in Canberra. Applying that approach alone would not establish the required result: The restricted port's hit counter grows on the deny entry and permitted flows still pass.

That observation verifies acl counter troubleshooting in a different situation, such as when a new permit rule is blamed for a dropped service even though its hit counter never increases. For the reported acl first-match ordering incident at a government campus in Canberra, the required acceptance evidence is: The restricted port's hit counter grows on the deny entry and permitted flows still pass. This other result does not test that condition directly.

That observation verifies time-based acl inactive in a different situation, such as when a time-range ACL permits scheduled maintenance only during a defined window, but the rule is ineffective due to clock drift. For the reported acl first-match ordering incident at a government campus in Canberra, the required acceptance evidence is: The restricted port's hit counter grows on the deny entry and permitted flows still pass. This other result does not test that condition directly.

That observation verifies extended acl ports in a different situation, such as when an ACL permits a destination address but not the required TCP application port because the entry tests the wrong transport field. For the reported acl first-match ordering incident at a government campus in Canberra, the required acceptance evidence is: The restricted port's hit counter grows on the deny entry and permitted flows still pass. This other result does not test that condition directly.

That approach is relevant to ip sla tracked floating default, such as when a static primary route remains in the RIB after upstream reachability fails because it tracks interface status only. That is a different root cause from the ip sla schedule omitted fault observed at a regional network operations center in Bristol. Applying that approach alone would not establish the required result: show ip sla statistics shows recurring probe results rather than an unstarted operation.

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 schedule omitted fault observed at a regional network operations center in Bristol. Applying that approach alone would not establish the required result: show ip sla statistics shows recurring probe results rather than an unstarted operation.

That approach is relevant to ip sla jitter measurement, such as when a voice service suffers variation in packet delay but is monitored only with a simple ICMP success rate. That is a different root cause from the ip sla schedule omitted fault observed at a regional network operations center in Bristol. Applying that approach alone would not establish the required result: show ip sla statistics shows recurring probe results rather than an unstarted operation.

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 schedule omitted incident at a regional network operations center in Bristol, the required acceptance evidence is: show ip sla statistics shows recurring probe results rather than an unstarted operation. 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 schedule omitted incident at a regional network operations center in Bristol, the required acceptance evidence is: show ip sla statistics shows recurring probe results rather than an unstarted operation. This other result does not test that condition directly.

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 schedule omitted incident at a regional network operations center in Bristol, the required acceptance evidence is: show ip sla statistics shows recurring probe results rather than an unstarted operation. This other result does not test that condition directly.

That approach is relevant to ospf area mismatch, such as when two OSPF routers on one link receive hellos but use different area identifiers, preventing adjacency. That is a different root cause from the ospf hello/dead mismatch fault observed at an industrial backbone in Munich. Applying that approach alone would not establish the required result: Both sides report matching timer settings and a stable adjacency forms.

That approach is relevant to ospfv3 router id, such as when oSPFv3 IPv6 adjacency does not initialize properly because a unique 32-bit router ID has not been configured in the routing process. That is a different root cause from the ospf hello/dead mismatch fault observed at an industrial backbone in Munich. Applying that approach alone would not establish the required result: Both sides report matching timer settings and a stable adjacency forms.

That approach is relevant to ospf authentication mismatch, such as when an OSPF neighbor receives hellos but rejects authenticated packets because key or mode differs across the link. That is a different root cause from the ospf hello/dead mismatch fault observed at an industrial backbone in Munich. Applying that approach alone would not establish the required result: Both sides report matching timer settings and a stable adjacency forms.

That observation verifies ospf exstart mtu in a different situation, such as when oSPF neighbors get stuck in Exstart/Exchange and database description packets advertise incompatible MTUs. For the reported ospf hello/dead mismatch incident at an industrial backbone in Munich, the required acceptance evidence is: Both sides report matching timer settings and a stable adjacency forms. This other result does not test that condition directly.

That observation verifies ospf authentication mismatch in a different situation, such as when an OSPF neighbor receives hellos but rejects authenticated packets because key or mode differs across the link. For the reported ospf hello/dead mismatch incident at an industrial backbone in Munich, the required acceptance evidence is: Both sides report matching timer settings and a stable adjacency forms. This other result does not test that condition directly.

That observation verifies ospf dr bdr network type in a different situation, such as when a point-to-point link is configured with an OSPF broadcast network type and displays an unnecessary DR election. For the reported ospf hello/dead mismatch incident at an industrial backbone in Munich, the required acceptance evidence is: Both sides report matching timer settings and a stable adjacency forms. This other result does not test that condition directly.

That approach is relevant to static hub mapping at spoke, such as when a spoke cannot send initial NHRP requests because it has no mapping from the hub's tunnel address to the reachable NBMA address. That is a different root cause from the nat-t reachability fault observed at a provider edge operations team in Singapore. Applying that approach alone would not establish the required result: The spoke behind NAT establishes IPsec and bidirectional encrypted traffic flows.

That approach is relevant to tunnel ipsec profile binding, such as when spoke-to-hub GRE packets are being sent without the required encryption because no tunnel protection profile is attached. That is a different root cause from the nat-t reachability fault observed at a provider edge operations team in Singapore. Applying that approach alone would not establish the required result: The spoke behind NAT establishes IPsec and bidirectional encrypted traffic flows.

That approach is relevant to ike esp underlay filtering, such as when a DMVPN peer can ping its hub's public interface but IKE or ESP packets are blocked by a WAN ACL. That is a different root cause from the nat-t reachability fault observed at a provider edge operations team in Singapore. Applying that approach alone would not establish the required result: The spoke behind NAT establishes IPsec and bidirectional encrypted traffic flows.

That observation verifies tunnel ipsec profile binding in a different situation, such as when spoke-to-hub GRE packets are being sent without the required encryption because no tunnel protection profile is attached. For the reported nat-t reachability incident at a provider edge operations team in Singapore, the required acceptance evidence is: The spoke behind NAT establishes IPsec and bidirectional encrypted traffic flows. This other result does not test that condition directly.

That observation verifies spoke multicast static mapping in a different situation, such as when a DMVPN spoke reaches the hub by unicast but its multicast routing hellos never reach the hub tunnel. For the reported nat-t reachability incident at a provider edge operations team in Singapore, the required acceptance evidence is: The spoke behind NAT establishes IPsec and bidirectional encrypted traffic flows. This other result does not test that condition directly.

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 nat-t reachability incident at a provider edge operations team in Singapore, the required acceptance evidence is: The spoke behind NAT establishes IPsec and bidirectional encrypted traffic flows. This other result does not test that condition directly.