Cisco 300-420 Exam Dumps, Practice Test Questions

That hazard arises in a separate case: A remote branch uses an OSPF stub area but a design change introduces an ASBR that must redistribute external routes within it. It is not the failure mode evidenced here.

That hazard arises in a separate case: A BGP operator attempts to influence routes within one AS by changing the weight attribute only on one edge router. 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: 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.

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.

That hazard arises in a separate case: A routed campus uses DHCP snooping on access switches but marks every endpoint port trusted for convenience. 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: A dual-carrier WAN design changes to backup but automatically switches back on every momentary primary heartbeat recovery. 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 campus designs priority queues only on the access switch but ignores a congested upstream WAN edge. It is not the failure mode evidenced here.

That hazard arises in a separate case: A source sends multicast through one router but users join from another site and no multicast routing is configured between them. It is not the failure mode evidenced here.

That hazard arises in a separate case: A WAN provider accepts only three traffic classes but headquarters configures eight local DSCP queues and assumes all survive the handoff. It is not the failure mode evidenced here.

That hazard arises in a separate case: A multivendor enterprise wants one consistent YANG representation for interface operational counters but each platform exposes vendor-specific native trees. It is not the failure mode evidenced here.

That hazard arises in a separate case: An automation team expects NETCONF transactions over SSH to behave like stateless HTTP GET calls with no session or lock semantics. 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: 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 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 arises in a separate case: An OSPF deployment puts all 600 remote access switches into area 0 and floods changes to every site. 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: 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: 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 network architect assumes assigning DSCP CS6 to user browsing guarantees faster internet service from a provider that resets all DSCP. 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 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: A site-to-site tunnel must protect financial payload confidentiality and integrity across the public internet. 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: 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 routed campus uses DHCP snooping on access switches but marks every endpoint port trusted for convenience. It is not the failure mode evidenced here.

That hazard arises in a separate case: An OSPF deployment puts all 600 remote access switches into area 0 and floods changes to every site. It is not the failure mode evidenced here.

That hazard arises in a separate case: Branch A and B redistribute external BGP into OSPF, then advertise resulting routes back into BGP at the opposite edge. 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.