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300-420 Actual Exam Questions

Last updated on Dec. 10, 2024.
Vendor:Cisco
Exam Code:300-420
Exam Name:Designing Cisco Enterprise Networks (ENSLD)
Exam Questions:339
97% Passed the exam with this material
 

Topic 1 - Single Topic

Question #1 Topic 1

Which two BGP features will result in successful route exchanges between eBGP neighbors sharing the same AS number? (Choose two.)

  • A. advertise-best-external
  • B. bestpath as-path ignore
  • C. client-to-client reflection
  • D. as-override
  • E. allow-as-in
Reveal Solution Hide Solution   Discussion   2

Correct Answer: DE 🗳️

Question #2 Topic 1

A customer with an IPv4 only network topology wants to enable IPv6 connectivity while preserving the IPv4 topology services. The customer plans to migrate IPv4 services to the IPv6 topology, then decommission the IPv4 topology. Which topology supports these requirements?

  • A. dual stack
  • B. 6VPE
  • C. 6to4
  • D. NAT64
Reveal Solution Hide Solution   Discussion   2

Correct Answer: A 🗳️

Question #3 Topic 1

DRAG DROP -
An engineer is designing an addressing plan for a small business using a single /24 network. Each department must have its own subnet. Drag and drop the subnets from the left onto the requirements of the department they fulfill on the right. Not all options are used.
Select and Place:

Reveal Solution Hide Solution   Discussion   4

Correct Answer:

Question #4 Topic 1

A company is running BGP on a single router, which has two connections to the same ISP. Which BGP feature ensures traffic is load balanced across the two links to the ISP?

  • A. Multihop
  • B. Multipath Load Sharing
  • C. Next-Hop Address Tracking
  • D. AS-Path Prepending
Reveal Solution Hide Solution   Discussion   1

Correct Answer: B 🗳️

Question #5 Topic 1

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
Reveal Solution Hide Solution   Discussion   12

Correct Answer: A 🗳️

Question #6 Topic 1

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.
Reveal Solution Hide Solution   Discussion   11

Correct Answer: A 🗳️

Question #7 Topic 1

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.
Reveal Solution Hide Solution   Discussion   20

Correct Answer: B 🗳️

Question #8 Topic 1

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
Reveal Solution Hide Solution   Discussion   2

Correct Answer: BE 🗳️

Question #9 Topic 1

A network solution is being designed for a company that connects to multiple Internet service providers. Which Cisco proprietary BGP path attribute will influence outbound traffic flow?

  • A. Local Preference
  • B. MED
  • C. Weight
  • D. AS Path
  • E. Community
Reveal Solution Hide Solution   Discussion   2

Correct Answer: C 🗳️

Question #10 Topic 1


Refer to the exhibit. EIGRP has been configured on all links. The spoke nodes have been configured as EIGRP stubs, and the WAN links to R3 have higher bandwidth and lower delay than the WAN links to R4. When a link failure occurs at the R1-R2 link, what happens to traffic on R1 that is destined for a subnet attached to R2?

  • A. R1 has no route to R2 and drops the traffic
  • B. R1 load-balances across the paths through R3 and R4 to reach R2
  • C. R1 forwards the traffic to R3, but R3 drops the traffic
  • D. R1 forwards the traffic to R3 in order to reach R2
Reveal Solution Hide Solution   Discussion   22

Correct Answer: A 🗳️

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