Cisco 300-420 Exam Dumps, Practice Test Questions

That hazard arises in a separate case: A branch EIGRP router advertises remote routes back into its hub and occasionally becomes a transit path between hubs. It is not the failure mode evidenced here.

That hazard arises in a separate case: A campus advertises a /18 summary into the WAN but has no route for one constituent /24 after a building is decommissioned. It is not the failure mode evidenced here.

That hazard arises in a separate case: An EIGRP core has routes stuck active after one WAN path fails and queries spread into many remote sites. It is not the failure mode evidenced here.

That hazard arises in a separate case: A bank contracts two MPLS providers but both fiber tails enter the building through the same conduit. It is not the failure mode evidenced here.

That hazard arises in a separate case: GET VPN group members can route between branches but new devices cannot obtain group security policy after a key-server loss. It is not the failure mode evidenced here.

That hazard arises in a separate case: A network wants a hub-and-spoke topology for finance traffic but allows any-to-any policy for all service VPNs. It is not the failure mode evidenced here.

That hazard arises in a separate case: A regional core accepts all branch routes and one lab site leaks its test 0.0.0.0/0 default into the global table. It is not the failure mode evidenced here.

That hazard arises in a separate case: Two campus distribution routers each have a single power feed from the same rack PDU, yet the architecture counts them as separate fault domains. It is not the failure mode evidenced here.

That hazard arises in a separate case: A campus topology places critical services behind one regional core switch despite redundant uplinks elsewhere. It is not the failure mode evidenced here.

That hazard arises in a separate case: A routing telemetry client assumes every operational counter supports on-change updates and receives no updates on one platform. It is not the failure mode evidenced here.

That hazard arises in a separate case: A standards group needs an interoperable interface model but mistakenly calls every IETF YANG module an OpenConfig model. It is not the failure mode evidenced here.

That hazard arises in a separate case: A telemetry receiver supports gRPC but cannot decode the device's gNMI JSON_IETF path data and classifies every update as malformed. It is not the failure mode evidenced here.

That hazard arises in a separate case: A branch EIGRP router advertises remote routes back into its hub and occasionally becomes a transit path between hubs. It is not the failure mode evidenced here.

That hazard arises in a separate case: A branch engineer redistributes a static default route into EIGRP and advertises it to every site, overriding the intended hub defaults. It is not the failure mode evidenced here.

That hazard arises in a separate case: A partner BGP session accidentally advertises a sensitive 10.0.0.0/8 internal route to an external ASN. It is not the failure mode evidenced here.

That hazard arises in a separate case: A provider's remote OOB management path is only 2 Mbps, while the network team sends continuous uncompressed telemetry streams at 5 Mbps. It is not the failure mode evidenced here.

That hazard arises in a separate case: A 20-Mbps backup link replaces a 200-Mbps primary WAN but the shaper keeps its 200-Mbps limit after failover. It is not the failure mode evidenced here.

That hazard arises in a separate case: Two business units share one management VLAN with unrestricted access to each other's routers. It is not the failure mode evidenced here.

That hazard arises in a separate case: A regional site uses EIGRP neighbors with mismatched autonomous system numbers despite matching IP subnet and authentication. It is not the failure mode evidenced here.

That hazard arises in a separate case: An EIGRP deployment relies on a single aggregation router and an outage cuts off all downstream branches. It is not the failure mode evidenced here.

That hazard arises in a separate case: An OSPF redistribution boundary introduces the same connected subnet from two ASBRs, resulting in inconsistent egress selection. It is not the failure mode evidenced here.

That hazard arises in a separate case: In a planned SD-Access fabric, border nodes can reach edge loopbacks but endpoints fail because the team placed user subnets into the underlay instead of overlay VRFs. 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 fabric control-plane node becomes unavailable and endpoint mobility updates stop at one campus site. 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: Backup 5G is installed at a factory but its data plan and APN firewall rules block VPN establishment after primary fiber failure. It is not the failure mode evidenced here.

That hazard arises in a separate case: A new SD-WAN site has a single edge appliance and single underlay yet is approved as redundant because controllers run in different data centers. 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: A multicast source is reachable through an interface other than the one receiving the packet, but the router still forwards it to all receivers. It is not the failure mode evidenced here.

That hazard arises in a separate case: A core router's production data plane fails, leaving SSH reachable only through the same failed core path. It is not the failure mode evidenced here.

That hazard arises in a separate case: A switch must remotely wake office PCs overnight, but the access port powers down and the design assumes Wake-on-LAN works regardless of power state. It is not the failure mode evidenced here.

That hazard arises in a separate case: A guest workstation port can learn hundreds of source MAC addresses because an unmanaged mini-switch is connected behind it. It is not the failure mode evidenced here.

That hazard arises in a separate case: IP phones and cameras are scheduled for a new closet, but PoE budget is calculated only from the switch's total port count. It is not the failure mode evidenced here.