Cisco 300-420 Exam Dumps, Practice Test Questions

That hazard arises in a separate case: A branch router redistributes a static default to the campus IGP without approval, causing arbitrary sites to shift egress. 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 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: 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 retailer adds 70 branches and reused 10.20.0.0/16 at several sites; the MPLS provider cannot distinguish the overlapping prefixes in the enterprise routing table. It is not the failure mode evidenced here.

That hazard arises in a separate case: A network with 80 iBGP routers becomes difficult to operate because every router forms a full mesh of peer sessions. 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: The RPF interface changes after a unicast route failover, but the multicast router retains stale upstream join state. It is not the failure mode evidenced here.

That hazard arises in a separate case: An enterprise wants to expose a multicast stream to one receiver group but the original source uses a group address conflicting with a remote application. It is not the failure mode evidenced here.

That hazard arises in a separate case: An NOC polls every router with SNMP once every ten minutes and misses 30-second interface utilization spikes. It is not the failure mode evidenced here.

That hazard arises in a separate case: An alerting system needs immediate notice of interface administrative status changes but only polls every five minutes. 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: 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 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: Two campus VRRP gateways both claim master after their shared advertisement path is partitioned, and clients receive inconsistent ARP responses. 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: Two DMVPN spokes can reach the hub but never build a direct shortcut after new spoke routes are learned. It is not the failure mode evidenced here.

That hazard arises in a separate case: A branch has broadband backup with no QoS controls and a voice service drops under failover saturation. 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 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 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: 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: 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: 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: A design asks to smooth backup traffic to a slow WAN circuit but deploys a policer that simply drops excess packets. 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 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 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: An organization needs any-to-any group-encrypted private WAN traffic but the new design proposes a traditional hub-and-spoke IPsec overlay with hub hairpins. It is not the failure mode evidenced here.

That hazard arises in a separate case: A financial organization leases a transparent point-to-point Ethernet service but requires independent routing at each site. It is not the failure mode evidenced here.

That hazard arises in a separate case: A campus has a fabric border but its external firewall cannot distinguish multiple endpoint VNs leaving the fabric. 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: Fabric edge nodes encapsulate packets, but the underlay path MTU is too small for added VXLAN overhead. It is not the failure mode evidenced here.