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Cisco 300-420

300-420

Exam Code: 300-420

Exam Name: Designing Cisco Enterprise Networks

Updated: Nov 04, 2026

Q & A: 457 Questions and Answers

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About Cisco 300-420 Exam

Cisco 300-420 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Compare WAN Connectivity Options
  • Design Campus Layer 2 Infrastructures
Topic 2
  • Select Appropriate Qos Strategies To Meet Customer Requirements (Diffserv, Intserv)
  • Determine Ipv6 Migration Strategies
Topic 3
  • Design High Availability For Enterprise WAN
  • Create Stable, Secure, And Scalable Routing Designs For OSPF
Topic 4
  • Choose The Correct YANG Data Model Set Based On Requirements
  • Advanced Addressing And Routing Solutions
Topic 5
  • Describe Cisco SD-WAN Design Considerations
  • Design Campus Networks For High Availability
Topic 6
  • Describe Multicast Routing Concepts (Source Trees, Shared Trees, RPF, Rendezvous Points)
  • Attributes For Path Preference
Topic 7
  • Design End-To-End Qos Policies
  • WAN For Enterprise Networks
  • Design Network Management Techniques
Topic 8
  • Differentiate Between NETCONF And RESTCONF
  • Create Stable, Secure, And Scalable Routing Designs For EIGRP
Topic 9
  • Design Multicast Services (SSM, PIM Bidirectional, MSDP)
  • Advanced Enterprise Campus Networks
Topic 10
  • Design Multicampus Layer 3 Infrastructures
  • Generic Routing Encapsulation (GRE)
  • Group Encrypted Transport VPN (GET VPN)
Topic 11
  • Compare Dial-In And Dial-Out Approaches To Model-Driven Telemetry
  • Create Stable, Secure, And Scalable Routing Designs For BGP
Topic 12
  • Describe Cisco SD-WAN Architecture (Orchestration Plane, Management Plane, Control Plane, Data Plane, On-Boarding And Provisioning, Security)

Reference: https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/ensld-300-420.html

Know about are the Prerequisites of Cisco 300-420 Exam

  • Recommended Experience: Although Cisco certifications no longer have formal prerequisites, Cisco recommends that candidates attempting this professional-level exam have three to five years of experience implementing network technologies. business.

  • Cisco Enterprise Network Design (300-420 ENSLD)

  • Cisco Enterprise Wireless Network Implementation (300-430 ENWLSI)

  • Cisco Enterprise Advanced Routing and Services Implementation (300-410 ENARSI)

  • Prerequisite: none.

  • Required Exams: The core exam for the CCNP Enterprise Certification is the Implementation and Operation of Cisco Enterprise Network Core Technologies (300-401 ENCOR). Candidates can choose one of five concentration exams:

  • Implementation of Cisco SD-WAN solutions (300-415 ENSDWI)

  • Cisco Enterprise Wireless Network Design (300-425 ENWLSD)

In recent years, many people choose to take Cisco 300-420 certification exam which can make you get the Cisco certificate that is the passport to get a better job and get promotions.

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Cisco 300-420: What? And How?

Exam 300-420 is suitable for system administrators, network engineers, and networking design engineers. All in all, there are several knowledge areas that you need to have a deep understanding of in order to pass such a test successfully. Thus, you should be familiar with the following:

  • Basic IP addressing and subnets;
  • Fundamental wireless networking notions as well as terms;
  • Routing & switching basics;
  • Building simple LANs and basic network fundamentals.

The most important information to look for after knowing that you qualify for such an exam is the skills measured. Generally, it is usually stated clearly through the topics covered. For this test, the main objectives are network services, advanced enterprise networks, automation, advanced addressing and routing solutions, network services, as well as WAN for enterprise networks. The exam format is another detail that you need to know about. Overall, there will be 60 multiple-choice questions, which you should complete within 90 minutes. You will certainly be able to answer all of them and get more than 825 points if you prepare wisely. Therefore, consider going for the official training and other prep resources, such as study guides, videos, and sample questions. To sit for this test, you need to pay $300 for the voucher. Also, please note that you can take it in English or Japanese. After you pass 300-420, you will get one of the Specialist certificates and the CCNP Enterprise if you take the Cisco 350-401 as well. However, you should understand that these are not lifetime certificates. They will be valid for only 3 years. After this period, you will be required to recertify to gain the desired benefits. There are a number of ways to follow this process. You can do so by taking the necessary exams or completing education activities. What is more, you can also do a combination of both.

Know about the test theme of Cisco 300-420 Exam

  • Length of Examination: 90 minutes
  • Language: English, Japanese
  • Format: Multiple choices, multiple answers
  • Number of questions: 65-75
  • Passing score: 70%

Cisco Designing Cisco Enterprise Networks Sample Questions:

Question #1
Which Cisco product were incorporated into Cisco ISE between ISE releases 2.0 and 2.3?

A. Cisco ESA
B. Cisco WSA
C. Cisco ASA
D. Cisco ACS


Question #2
An architect is designing a network solution for a customer. The network is IPv6-only with 1000 hosts. The design must provide external access to up to 10 concurrent IPv6 hosts to allow communication with legacy IPv4 devices on an adjacent network. The customer set aside 10 IPv4 addresses to allow for one-to-one communication between hosts. Which solution must the architect select?

A. dynamic NPTv6
B. stateful NAT64
C. dynamic NAT-PT
D. static NAT-PT


Question #3
An engineer must design a solution to connect a customer to the Internet. The solution will include a Layer 3 circuit with a CIR of 50 Mbps from the service provider. The hand-off from the provider's switch to the customer's router is 1Gbps. Which solution should the engineer include to prevent potential issues with choppy voice traffic?

A. Implement hierarchical QoS with a parent shaping policy
B. Reduce the bandwidth of the connection to the router.
C. Implement hierarchical QoS with a parent policing policy.
D. Add a bandwidth statement to the router interface.


Question #4
Refer to the exhibit. An architect is designing a BGP solution to connect a remote branch to a service provider. There are several prefixes within the branch that the company does not want to be advertised to the internet. Which solution should the architect use to accomplish this?

A. Use the BGP No-Advertise community for the prefixes to exclude.
B. Attach the No-Export community with the prefixes to exclude
C. Set the BGP Internet community for all prefixes.
D. Implement the NOPEER community.


Question #5
What is the purpose of the fabric control plane in a Cisco SD-Access architecture?

A. create and resolve endpoint-to-location mapping
B. create a transit node with BGP route reflector functionality
C. create, propagate, and enforce GBAC policies in the fabric
D. extend multiple subnets to one RLOC


Solutions:

Question #1
Correct Answer: D
Question #2
Correct Answer: B
Question #3
Correct Answer: A
Question #4
Correct Answer: B
Question #5
Correct Answer: A

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