Cisco 300-420 Exam Dumps, Practice Test Questions

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 service provider backbone runs IS-IS level-1 only across multiple areas, and distant branch routers cannot obtain interarea routes. It is not the failure mode evidenced here.

That hazard arises in a separate case: An organization needs to reach an IPv6 island over a provider network that carries IPv4 only for the next year. 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: 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 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 regional healthcare group wants routed site separation within a provider-managed private WAN without building its own full mesh of tunnels. 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: 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 design team calculates voice QoS bandwidth solely from codec payload bit rate and ignores RTP, IP and tunnel overhead. It is not the failure mode evidenced here.

That hazard arises in a separate case: A guest wireless SSID creates burst traffic exceeding its contracted share and disrupts campus applications. 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 network uses IS-IS with dual distribution routers and wants predictable traffic away from a low-bandwidth backup path. 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 campus plans IPv6 addressing with one /64 shared between two routed VLAN interfaces in different buildings. 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 company needs private predictable cloud connectivity to two regions but its design considers only commodity internet VPNs. 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: A design extends SDA fabric across buildings on a WAN with 1500-byte MTU and assumes local campus performance will continue unchanged. 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.

That hazard arises in a separate case: A distribution pair advertises the same summary at two locations, but one has a 100-Mbps backhaul and receives half of campus traffic. It is not the failure mode evidenced here.

That hazard arises in a separate case: The IS-IS backbone has a router in overload state after reboot and operators mistake it for an ordinary forwarding transit. 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: A remote office assigns clients addresses from 169.254.0.0/16 and expects them to be reachable through a routed WAN. It is not the failure mode evidenced here.

That hazard arises in a separate case: An enterprise edge allows a contracted 50-Mbps guest rate but users report voice degradation during microbursts despite the average staying under 50 Mbps. It is not the failure mode evidenced here.

That hazard arises in a separate case: An enterprise WAN receives DSCP values from untrusted guest clients and propagates them unchanged into privileged queues. 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 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 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 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 design extends SDA fabric across buildings on a WAN with 1500-byte MTU and assumes local campus performance will continue unchanged. It is not the failure mode evidenced here.

That hazard arises in a separate case: A branch aggregation point has both IS-IS and OSPF neighbors with multiple equal-cost exits; traffic unexpectedly hairpins through a data center. 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.