Download Designing Cisco Enterprise Networks (300-420 ENSLD).300-420.ExamTopics.2026-04-23.320q.tqb

Vendor: Cisco
Exam Code: 300-420
Exam Name: Designing Cisco Enterprise Networks (300-420 ENSLD)
Date: Apr 23, 2026
File Size: 15 MB
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Demo Questions

Question 1
Drag and drop the elements from the left onto the protocols where they are used on the right.
Correct answer: To work with this question, an Exam Simulator is required.
Question 2
How does a model-driven telemetry dial-out approach function?
  1. The device initiates a session to the collector based on the subscription.
  2. The collector initiates a session to the device and subscribes to data to be streamed.
  3. The collector initiates a session to the device and gets the data of a previously defined subscription.
  4. The device initiates a session to the collector and negotiates a subscription.
Correct answer: A
Question 3
Which function do reverse path forwarding mechanisms perform in a multicast deployment?
  1. They send PIM prune message toward multicast sources.
  2. They prevent loops and duplicate packets.
  3. They eliminate overlapping multicast addresses.
  4. They notify the upstream router of multicast traffic.
Correct answer: B
Question 4
Which function does the Cisco SD-Access intermediate node perform?
  1. Act as an anycast Layer 3 gateway.
  2. Map users to a virtual network.
  3. Route and transport IP traffic.
  4. Act as LISP proxy tunnel router.
Correct answer: C
Question 5
A customer plans to adopt distributed QoS in their enterprise WAN. The policy must allow for individual packet marking according to the type of treatment required and for forwarding based on hop-by-hop treatment locally defined on each device. Which technology must the customer select?
  1. CBWFQ
  2. LLQ
  3. Diffserv
  4. IntServ
Correct answer: C
Question 6
An organization plans to deploy multicast across two different autonomous systems. Their solution must allow RPs to:
  • discover active sources outside their domain
  • use the underlying routing information for connectivity with other RPs
  • announce sources joining the group
Which solution supports these requirements?
  1. SSM
  2. MSDP
  3. PIM-DM
  4. PIM-SM
Correct answer: B
Explanation:
Reference:https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/16-10/configuration_guide/ip_mcast_rtng/ b_1610_ip_mcast_rtng_9500_cg/b_1610_ip_mcast_rtng_9500_cg_chapter_010001.pdf
Reference:
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/16-10/configuration_guide/ip_mcast_rtng/ b_1610_ip_mcast_rtng_9500_cg/b_1610_ip_mcast_rtng_9500_cg_chapter_010001.pdf
Question 7
What is an advantage of designing an out-of-band network management solution?
  1. In the event of a production network outage, network devices can still be managed.
  2. There is no separation between the production network and the management network.
  3. In the event of a production network outage, it can be used as a backup network path.
  4. It is less expensive than an in-band management solution.
Correct answer: A
Question 8
When IPsec VPNs are designed, what is a unique requirement if support for IP Multicast is required?
  1. encapsulation of traffic with GRE or VTI
  2. IPsec forwarding using transport mode
  3. additional bandwidth for headend
  4. IPsec forwarding using tunnel mode
Correct answer: A
Question 9
Drag and drop the functions from the left onto the Cisco SD-WAN components that perform them on the right.
Correct answer: To work with this question, an Exam Simulator is required.
Question 10
What is one function of the vSmart controller in an SD-WAN deployment?
  1. orchestrates vEdge and cEdge connectivity
  2. responsible for the centralized control plane of the SD-WAN network
  3. provides centralized network management and a GUI to monitor and operate the SD-WAN overlay
  4. provides a data-plane at branch offices to pass traffic through the SD-WAN network
Correct answer: B
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