Exams > Cisco > 300-420: Designing Cisco Enterprise Networks (ENSLD)
300-420: Designing Cisco Enterprise Networks (ENSLD)
Page 5 out of 20 pages Questions 41-50 out of 196 questions
Question#41


Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect must optimize the network to reduce the impact when a link fails. Which solution should the architect include in the design?

  • A. Run BFD on the inter links between EIGRP neighbors.
  • B. Summarize the access layer networks from each access layer switch toward the aggregation layer.
  • C. Reduce the default EIGRP hello interval and hold time.
  • D. Summarize the access layer networks from the aggregation layer toward the core layer.
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A

Question#42

What is the purpose of a control plane node in a Cisco SD-Access network fabric?

  • A. to maintain the endpoint database and mapping between endpoints and edge nodes
  • B. to detect endpoints in the fabric and inform the host tracking database of EID-to-fabric-edge node bindings
  • C. to identify and authenticate endpoints within the network fabric
  • D. to act as the network gateway between the network fabric and outside networks
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B

Question#43


Refer to the exhibit. An architect reviews the low-level design of a company's enterprise network and advises optimizing the STP convergence time. Which functionality must be applied to Gi1/0/1-10 to follow the architect's recommendation?

  • A. UplinkFast
  • B. root guard
  • C. BPDU guard
  • D. PortFast
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D

Question#44

An engineer must design a large Layer 2 domain that contains hundreds of switches and VLANs. The engineer's primary goals are to:
✑ Efficiently utilize the bandwidth of all links
✑ Avoid Layer 2 loops
✑ Cause minimal impact on switch CPU and memory
Which technology should the engineer include in the design?

  • A. MST
  • B. Rapid PVST+
  • C. RSTP
  • D. PVST+
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B

Question#45

Company A recently acquired another company. Users of the newly acquired company must be able to access a server that exists on Company A's network, both companies use overlapping IP address ranges. Which action conserves IP address space and provides access to the server?

  • A. Use a single IP address to create overload NAT
  • B. Use a single IP address to create a static NAT entry
  • C. Build one-to-one NAT translation for every user that needs access
  • D. Re-IP overlapping address space in the acquired company
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A

Question#46

Which design consideration should be observed when EIGRP is configured on Data Center switches?

  • A. Perform manual summarization on all Layer 3 interfaces to minimize the size of the routing table.
  • B. Prevent unnecessary EIGRP neighborships from forming across switch virtual interfaces.
  • C. Lower EIGRP hello and hold timers to their minimum settings to ensure rapid route reconvergence.
  • D. Configure multiple EIGRP autonomous systems to segment Data Center services and applications.
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A

Question#47

Which design consideration must be made when using IPv6 overlay tunnels?

  • A. Overlay tunnels that connect isolated IPv6 networks are considered a final IPv6 network architecture.
  • B. Overlay tunnels should only be considered as a transition technique toward a permanent solution.
  • C. Overlay tunnels should be configured only between border devices and require only the IPv6 protocol stack.
  • D. Overlay tunneling encapsulates IPv4 packets in IPv6 packets for delivery across an IPv6 infrastructure.
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C

Question#48

When a network is designed using IS-IS, which two circuit types are supported? (Choose two.)

  • A. nonbroadcast multiaccess
  • B. multiaccess
  • C. point-to-multipoint
  • D. nonbroadcast
  • E. point-to-point
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BE

Question#49


Refer to the exhibit. An engineer must design an automatic failover solution. The solution should allow HSRP to detect a WAN 1 failure and initiate an automatic failover, making router R2 the active HSRP router. Which two solutions should the engineer choose? (Choose two.)

  • A. implement IP SLA on router R1
  • B. implement PBR on router R1
  • C. implement Enhanced Object Tracking on router R1
  • D. use IP source routing
  • E. use a floating static route
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AC

Question#50

Which topology within a network underlay eliminates the need for first hop redundancy protocols while improving fault tolerance, increasing resiliency, and simplifying the network?

  • A. virtualized topology
  • B. routed access topology
  • C. Layer 2 topology
  • D. logical fabric topology
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D

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