Juniper JN0-364 Questions & Answers

The proposal changes BGP communities and routing policy; that is not the failure isolated by the facts. It could leave BGP local preference unresolved even if its own test passed. LOCAL_PREF is an intradomain BGP path attribute that normally influences preferred outbound exit for routes inside the AS.

Correct the locally expected peer AS and actual neighbor AS identity and validate the BGP OPEN exchange. This addresses BGP ASN and OPEN negotiation, but the reported symptoms arise from BGP local preference. For this case, verify instead that internal BGP best paths prefer the approved egress due to the intended local-preference values.

The proposal changes martian source address rejection; that is not the failure isolated by the facts. It could leave BGP local preference unresolved even if its own test passed. LOCAL_PREF is an intradomain BGP path attribute that normally influences preferred outbound exit for routes inside the AS.

Specify a reachable IPv6 next hop with correct interface scope where required and verify IPv6 route installation. Its normal acceptance signal would be the intended IPv6 destination has an active route with a resolved next hop and working egress interface. Here the deciding check is different: IPv6 reachability TLVs are exchanged and peers install the intended IPv6 routes independently of IPv4 reachability.

Place each tenant's ports and VLANs in the intended virtual-switch context and verify independent bridge learning. Its normal acceptance signal would be the same VLAN numbers can exist where supported without unintended MAC or broadcast leakage across isolated virtual switches. Here the deciding check is different: IPv6 reachability TLVs are exchanged and peers install the intended IPv6 routes independently of IPv4 reachability.

Enable compatible OSPFv3 IPv6 operation on the intended peers and validate neighbor and route state. This addresses OSPFv3 IPv6 neighbor reachability, but the reported symptoms arise from IS-IS IPv6 topology TLVs. For this case, verify instead that IPv6 reachability TLVs are exchanged and peers install the intended IPv6 routes independently of IPv4 reachability.

Compare OSPF area IDs at both ends of every new inter-router link before production cutover. That ongoing check is for OSPF area identity mismatch; it would not reliably detect recurrence of stable OSPF router identifier. OSPF uses the router ID to identify LSA originators; duplicate or unstable IDs undermine link-state identity.

The control protects VSTP per-VLAN root choice. It does not establish the ongoing stable OSPF router identifier behavior required in this network. OSPF uses the router ID to identify LSA originators; duplicate or unstable IDs undermine link-state identity.

Audit OSPF export filters against an approved prefix list after every service addition. The monitored boundary differs from stable OSPF router identifier, so the original weakness might reappear unnoticed. OSPF uses the router ID to identify LSA originators; duplicate or unstable IDs undermine link-state identity.

Treat the reserved or martian prefix as invalid for production routing and correct the source instead of overriding safety rejection blindly. Its normal acceptance signal would be the inappropriate prefix is absent or rejected while legitimate provider routes remain eligible and active. Here the deciding check is different: the shared connected route exists in both intended RIBs without broadly importing unrelated customer prefixes.

Align aggregate generation with present contributing routes and confirm the discard or reject behavior and intentional export policy. Its normal acceptance signal would be the aggregate is active only with the expected contributors and disappears when the contributor precondition is removed. Here the deciding check is different: the shared connected route exists in both intended RIBs without broadly importing unrelated customer prefixes.

Interpret the advertised implicit-null behavior and verify label disposition on the penultimate LSR and egress. That could help in a case involving penultimate hop popping. This failure instead depends on RIB group route sharing; A RIB group can install selected routes into additional routing tables; it does not merge isolated forwarding domains indiscriminately.

This is a useful guard against LDP transport address reachability, but it is not scoped to the observed MPLS label stack bottom bit failure. An appropriate test would show that traces show the transport label above the service label with bottom-of-stack marked only on the last label.

Compare intended LDP interface coverage against active discovery neighbors after link additions. The monitored boundary differs from MPLS label stack bottom bit, so the original weakness might reappear unnoticed. The MPLS S bit identifies the final label in a stack; it does not describe label priority or path preference.

The control protects virtual-switch instance isolation. It does not establish the ongoing MPLS label stack bottom bit behavior required in this network. The MPLS S bit identifies the final label in a stack; it does not describe label priority or path preference.

Align LACP negotiation and member compatibility on both ends, then verify collecting and distributing member state. This addresses LACP aggregation consistency, but the reported symptoms arise from GRES preserves forwarding not protocols. For this case, verify instead that A controlled Routing Engine switchover retains forwarding and the planned bridge or routing state without unexpected protocol resets.

Align VRRP group, virtual gateway addressing and priority settings and verify master-to-backup handover. Its normal acceptance signal would be the same virtual gateway remains reachable when the active VRRP router is failed in a controlled test. Here the deciding check is different: A controlled Routing Engine switchover retains forwarding and the planned bridge or routing state without unexpected protocol resets.

The proposal changes multiprotocol BGP IPv6 AFI; that is not the failure isolated by the facts. It could leave GRES preserves forwarding not protocols unresolved even if its own test passed. GRES preserves forwarding and kernel state but does not by itself preserve all routing or bridging state; NSB targets bridge continuity and NSR or graceful restart addresses routing continuity.

Align the port's supported flexible VLAN tagging and per-unit encapsulation with the intended service frame format. Its normal acceptance signal would be the correct single- and double-tagged service units receive traffic matching their configured VLAN identifiers. Here the deciding check is different: the prefix SID is advertised and all ingress routers compute consistent transport label behavior for the node destination.

Restore IP reachability to the negotiated LDP transport addresses and verify the TCP session and label exchange. This addresses LDP transport address reachability, but the reported symptoms arise from segment routing prefix SID. For this case, verify instead that the prefix SID is advertised and all ingress routers compute consistent transport label behavior for the node destination.

Interpret the advertised implicit-null behavior and verify label disposition on the penultimate LSR and egress. Its normal acceptance signal would be the penultimate LSR removes the expected transport label and the egress receives traffic in the planned label state. Here the deciding check is different: the prefix SID is advertised and all ingress routers compute consistent transport label behavior for the node destination.

This is a useful guard against LDP transport address reachability, but it is not scoped to the observed MPLS label forwarding table mismatch failure. An appropriate test would show that incoming labels resolve to valid outgoing label operations and interfaces, and data-plane counters show successful forwarding.

This is a useful guard against segment routing adjacency SID, but it is not scoped to the observed MPLS label forwarding table mismatch failure. An appropriate test would show that incoming labels resolve to valid outgoing label operations and interfaces, and data-plane counters show successful forwarding.

Track link cost and selected SPF path together in post-upgrade route-validation tests. That ongoing check is for OSPF interface metric selection; it would not reliably detect recurrence of MPLS label forwarding table mismatch. Control-plane LSP state and data-plane label forwarding entries are separate checks; an Up session does not prove the FIB is correct.

This principle matters when troubleshooting VRRP virtual gateway failover, but using it here mistakes a different failure mode for BGP MED neighbor consideration. The relevant distinction is: MED is a BGP path hint with lower values generally preferred when compared; it is not a guarantee of inbound routing across arbitrary networks.

This principle matters when troubleshooting BGP local preference, but using it here mistakes a different failure mode for BGP MED neighbor consideration. The relevant distinction is: MED is a BGP path hint with lower values generally preferred when compared; it is not a guarantee of inbound routing across arbitrary networks.

Although BGP next-hop reachability needs this consideration, the failure at issue has a different cause. MED is a BGP path hint with lower values generally preferred when compared; it is not a guarantee of inbound routing across arbitrary networks.

The approved root remains root despite inferior-site superior-BPDU injection, and the boundary behaves as designed. That establishes RSTP root protection rather than a repaired OSPF area identity mismatch path. The reported failure still requires this evidence: the pair establishes the expected OSPF adjacency with matching area assignment and reachable learned prefixes.

The two peers progress through database synchronization to Full and agree on reachable link-state information. It would validate a separate OSPF MTU negotiation operation, not the change needed here. Confirm instead that the pair establishes the expected OSPF adjacency with matching area assignment and reachable learned prefixes.

The best route's cumulative OSPF cost selects the approved path and changes predictably when the alternative fails. It would validate a separate OSPF interface metric selection operation, not the change needed here. Confirm instead that the pair establishes the expected OSPF adjacency with matching area assignment and reachable learned prefixes.

Bind the correct VLAN bridge domain to its intended IRB routed interface and verify gateway addressing and routing. This addresses integrated routing and bridging, but the reported symptoms arise from provider bridging MTU overhead. For this case, verify instead that tagged test frames of the required service size traverse each handoff without oversize or discard counters rising.

Set and verify the suitable point-to-point OSPF network type on both intended endpoints. Its normal acceptance signal would be the two peers form a Full point-to-point adjacency without a broadcast-segment DR election. Here the deciding check is different: tagged test frames of the required service size traverse each handoff without oversize or discard counters rising.

The proposal changes MAC address learning and moves; that is not the failure isolated by the facts. It could leave provider bridging MTU overhead unresolved even if its own test passed. Provider tag stacking adds frame overhead; an unchanged link MTU may reject frames that previously fitted untagged.