Cisco 300-420 Exam Dumps, Practice Test Questions

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.

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: A routed-access campus needs equal-cost forwarding to two distribution routers while keeping each VLAN local to one wiring closet. 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 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: 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 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 monitoring team tries to exchange gNMI Get and Subscribe messages with a device that only exposes ordinary HTTP REST endpoints. It is not the failure mode evidenced here.

That hazard arises in a separate case: A development team consumes a managed runtime that deploys application code without administering underlying servers and calls it raw IaaS. It is not the failure mode evidenced here.

That hazard arises in a separate case: A NETCONF client edits a shared candidate configuration while another orchestrator is modifying the same device. 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 global business wants to connect its datacenter and branches on two different MPLS L3VPN providers with no accidental route leak between customers. It is not the failure mode evidenced here.

That hazard arises in a separate case: A branch uses IPsec overlay on broadband with 1400-byte effective MTU, but an application sends 1500-byte DF-set packets and stalls. 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 router receives two EIGRP routes for a prefix with different metrics and the design team wants deterministic failover. It is not the failure mode evidenced here.

That hazard arises in a separate case: Branches summarize their local EIGRP networks at a hub-facing boundary, but a detached subnet is included in the summary. It is not the failure mode evidenced here.

That hazard arises in a separate case: New routers have valid IP addresses but IS-IS peers in separate areas never form a level-1 adjacency. It is not the failure mode evidenced here.

That hazard arises in a separate case: A branch OSPF design selects a totally stubby area but an application requires type-3 interarea routes rather than only the 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 campus design requires both distribution uplinks active but the chosen topology uses classic STP on all Layer 2 connections. It is not the failure mode evidenced here.

That hazard arises in a separate case: A building has two independent distribution switches but hosts use the physical IP of one switch as their default gateway. 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: A regional WAN prioritizes voice using a DiffServ marking but provides no scheduler preference on its congested egress link. 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 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: A video conference SD-WAN policy accepts tunnels with 1% packet loss but ignores sustained jitter above application tolerance. It is not the failure mode evidenced here.

That hazard arises in a separate case: Branches will be migrated from static internet VPNs to SD-WAN customer edges but the design omits transport isolation and overlay security. 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: An attacker plugs an unmanaged switch into a lobby edge port and advertises superior STP BPDUs, changing the root topology. 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: An access switch's BPDU Guard disables a legitimate downstream bridge, and the network team proposes disabling Guard on every port. It is not the failure mode evidenced here.