Cisco 300-420 Exam Dumps, Practice Test Questions

That hazard arises in a separate case: An edge router receives a full BGP table where the security policy allows only the provider's approved default. It is not the failure mode evidenced here.

That hazard relates to another condition: A provider delegation contains 2001:db8:4200::/48 and the design requires 256 independent /64 LANs across 16 branches. It is not the direct risk evidenced by this case.

That hazard arises in a separate case: A new IPv6-only client subnet must access a legacy IPv4-only web endpoint through an enterprise gateway. It is not the failure mode evidenced here.

That hazard arises in a separate case: An NSF-capable router pair loses a control-plane process briefly and the design assumes all neighboring routers will preserve forwarding. It is not the failure mode evidenced here.

That hazard arises in a separate case: A new MST campus region accidentally has a different VLAN-to-instance mapping on one distribution switch. It is not the failure mode evidenced here.

That hazard arises in a separate case: Two access switches uplink to a distribution pair; the architecture stretches one port channel across chassis without verifying multi-chassis support. It is not the failure mode evidenced here.

That hazard arises in a separate case: A Cisco-only controller needs platform-specific wireless policies that are not represented by the organization's standard OpenConfig model. It is not the failure mode evidenced here.

That hazard arises in a separate case: An organization hosts workloads in its owned private cloud and bursts selected approved applications to a public cloud while declaring this exclusively private deployment. It is not the failure mode evidenced here.

That hazard arises in a separate case: A support dashboard needs regular CPU and interface-rate samples even when values remain unchanged. It is not the failure mode evidenced here.

That hazard arises in a separate case: A team expects multicast traffic to traverse a shared tree forever even though its design requests shortest-path switching. It is not the failure mode evidenced here.

That hazard arises in a separate case: A QoS controller marks all backup data DSCP AF41 while the provider honors it as a premium video class. It is not the failure mode evidenced here.

That hazard arises in a separate case: Network management of a branch uses a VPN over its sole primary WAN, and the organization reports no way to diagnose a provider outage. It is not the failure mode evidenced here.

That hazard arises in a separate case: Two hospitals need their existing Ethernet VLANs extended across a provider circuit but their engineers incorrectly request a routed L3VPN. It is not the failure mode evidenced here.

That hazard arises in a separate case: A retail chain needs many spokes to make dynamic spoke-to-spoke tunnels without permanent full-mesh configuration. It is not the failure mode evidenced here.

That hazard arises in a separate case: A customer needs private route separation for 12 branches over a shared provider backbone, not a single Ethernet broadcast domain. It is not the failure mode evidenced here.

That hazard arises in a separate case: Three campus sites peer with a shared WAN hub; every site transits through the hub even for cross-campus traffic and voice suffers latency. It is not the failure mode evidenced here.

That hazard arises in a separate case: Two intercampus routers redistribute OSPF and EIGRP in both directions, making route origin hard to track. It is not the failure mode evidenced here.

That hazard arises in a separate case: A branch aggregation point has both IS-IS and OSPF neighbors with multiple equal-cost exits; traffic unexpectedly hairpins through a data center. It is not the failure mode evidenced here.

That hazard arises in a separate case: A company wants most return traffic for its public prefix to enter ISP B rather than ISP A. It is not the failure mode evidenced here.

That hazard arises in a separate case: A BGP customer has two provider uplinks and wants automatic loss-of-transport detection when the BGP session remains Established over a stale recursive path. It is not the failure mode evidenced here.

That hazard arises in a separate case: A company wants to expose IPv6 resources to a partner with IPv4-only routing and assumes dual stack at headquarters solves the partner boundary. It is not the failure mode evidenced here.

That hazard arises in a separate case: A manufacturing WAN requires multicast distribution but the SD-WAN overlay has only validated unicast OMP reachability. It is not the failure mode evidenced here.

That hazard arises in a separate case: A WAN team assumes DWDM wavelength multiplexing itself supplies packet-level route isolation between tenants. It is not the failure mode evidenced here.

That hazard arises in a separate case: An industrial site uses 4G LTE as primary WAN, and its routing team assumes public inbound addresses remain reachable through carrier-grade NAT. It is not the failure mode evidenced here.

That hazard arises in a separate case: A branch QoS policy matches all TCP 443 traffic as video, including large software downloads. It is not the failure mode evidenced here.

That hazard arises in a separate case: A campus QoS policy gives low priority to routing keepalives and network monitoring, and routing adjacencies flap during congestion. It is not the failure mode evidenced here.

That hazard arises in a separate case: A campus uses DSCP EF for voice signaling, voice media, and backup traffic, causing priority queue overload. It is not the failure mode evidenced here.

That hazard arises in a separate case: A campus OSPF area 0 is split into disconnected islands connected only by another area; route distribution is unstable. It is not the failure mode evidenced here.

That hazard arises in a separate case: A remote office assigns clients addresses from 169.254.0.0/16 and expects them to be reachable through a routed WAN. It is not the failure mode evidenced here.

That hazard arises in a separate case: A security design requires authenticating OSPF control packets on shared routed links, but only one neighbor has authentication enabled. It is not the failure mode evidenced here.

That hazard arises in a separate case: An organization needs consistent segmentation across two SD-Access fabric sites connected by a routed MPLS service. It is not the failure mode evidenced here.

That hazard arises in a separate case: A fabric site needs a guest wireless SSID without extending the guest Layer 2 domain across the whole enterprise. It is not the failure mode evidenced here.

That hazard arises in a separate case: An SD-Access architect assumes the fabric's LISP control plane transports all user packets like a data-plane tunnel. It is not the failure mode evidenced here.