Cisco 300-420 Exam Dumps, Practice Test Questions

That hazard arises in a separate case: Multiple access switches connect to one distribution block through independent Layer 2 uplinks with a blocked redundant path. 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: A remote campus uses two distribution switches and requires nonstop gateway access during a planned supervisor replacement. 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: IS-IS adjacencies form between distribution switches, but all internal prefixes are redistributed from OSPF without loop prevention. 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 fleet telemetry design streams all available operational leaves every second over a constrained management link. It is not the failure mode evidenced here.

That hazard arises in a separate case: A global WAN telemetry system publishes a complete 10,000-interface snapshot every 100 ms although the target is only five-minute capacity planning. 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: 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 lab requires a routed overlay carrying multicast between sites but encryption is not part of the GRE service itself. It is not the failure mode evidenced here.

That hazard arises in a separate case: A multisite SD-WAN deployment uses one manager for configuration and assumes manager reachability is necessary for every packet of user data. It is not the failure mode evidenced here.

That hazard arises in a separate case: A branch uses a shaper on voice and bulk traffic together, and the business assumes shaping guarantees that voice always transmits first. It is not the failure mode evidenced here.

That hazard arises in a separate case: Video and voice both use one strict-priority queue, causing voice jitter when video surges. It is not the failure mode evidenced here.

That hazard arises in a separate case: A switch QoS scheduler guarantees 30% to backup traffic and 80% to voice under full congestion, exceeding possible link capacity. It is not the failure mode evidenced here.

That hazard arises in a separate case: HSRP gateways remain reachable locally after their active router loses the only routed upstream uplink. It is not the failure mode evidenced here.

That hazard arises in a separate case: A site cutover retains a withdrawn /24 under an unchanged /20 campus summary and traffic follows an obsolete transit path. It is not the failure mode evidenced here.

That hazard arises in a separate case: A new campus design requires maintaining service during both one uplink failure and one planned software upgrade. It is not the failure mode evidenced here.

That hazard arises in a separate case: Two OSPF neighbors on a routed core link are stuck in EXSTART/EXCHANGE and one endpoint uses an incompatible MTU. 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: An iBGP route reflector sees several candidate routes to the same destination but advertises only its best path to clients. 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.

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: A virtualized distribution pair uses one logical control plane and engineers assume it offers separate failure domains like two chassis in different buildings. It is not the failure mode evidenced here.

That hazard arises in a separate case: Two independent PIM-SM domains each use local rendezvous points but remote sources must be discovered across the domains. It is not the failure mode evidenced here.

That hazard arises in a separate case: A multicast network has active PIM neighbors but one edge switch suppresses IGMP reports after an access-layer topology change. 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: Several data centers need high-capacity optical transport over metropolitan dark fiber without converting each tenant VLAN to an IP tunnel. It is not the failure mode evidenced here.

That hazard arises in a separate case: An enterprise's primary WAN circuit fails but BGP route withdrawal is delayed while the underlay interface remains up. It is not the failure mode evidenced here.

That hazard arises in a separate case: An SD-WAN fabric routes guest traffic into the production VPN because a new edge reused the corporate service VPN identifier. It is not the failure mode evidenced here.

That hazard arises in a separate case: A remote campus uses two distribution switches and requires nonstop gateway access during a planned supervisor replacement. It is not the failure mode evidenced here.

That hazard arises in a separate case: A campus with several hundred VLANs uses one active HSRP gateway for all VLANs while another distribution router remains mostly idle. It is not the failure mode evidenced here.

That hazard arises in a separate case: A public safety campus requires independent operations from a corporate tenant even when both use the same distribution hardware. It is not the failure mode evidenced here.