Cisco 300-420 : Designing Cisco Enterprise Networks

  • Exam Code: 300-420
  • Exam Name: Designing Cisco Enterprise Networks
  • Updated: Aug 17, 2026
  • Q & A: 457 Questions and Answers

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About Cisco 300-420 Exam

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Know about a procedure to register for Cisco 300-420 Exam

In order to apply for the Cisco 300-420 Exam, You have to follow these steps

  • Step 3: Search for Cisco 300-420 Certifications Exam

  • Step 4: Select Date, time and confirm with a payment method

  • Step 1: Visit to Pearson VUE Exam Registration

  • Step 2: Signup/Login to Pearson VUE account

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Preparation Process for Cisco 300-420 Exam

Cisco recommends the training course, which is Designing Cisco Enterprise Networks v1.0, for the individuals preparing to take the Cisco 300-420 exam. This training option equips them with the skills and knowledge required for designing enterprise networks. The candidates can take this course as the instructor-led training or e-learning education. The details of how to access it are available on the official website. Apart from this variant, the individuals can also explore other resources, such as video tutorials, practice tests, and more. All of them are designed to prepare the applicants for achieving success in their certification test on the first try.

Know about are the Prerequisites of Cisco 300-420 Exam

  • Prerequisite: none.

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

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

  • 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 Wireless Network Implementation (300-430 ENWLSI)

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

  • Cisco Enterprise Network Design (300-420 ENSLD)

  • 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:

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

Details of Cisco 300-420 Exam

The Cisco 300-420 exam consists of about 65 questions that have to be answered within the allocated time of 90 minutes. These items can be presented in different formats, including drag and drop, fill-in-the-blank, testlets, and multiple choice. The students are required to achieve the passing score of 750 points out of a total of 1000. This result allows them to get the associated certification. Besides that, the individuals should be ready to pay the fee of $300. After that, they can register and schedule 300-420 ENSLD through Pearson VUE. This platform provides the candidates with two delivery methods. You can choose the in-person variant and sit for the exam at one of the testing centers. On the other hand, you can opt for the online testing and take the exam from the comfort of your home. Those learners who do not complete the test will have a five-day waiting period before their next attempt.

Cisco 300-420 Exam Syllabus Topics:

SectionWeightObjectives
Advanced Addressing and Routing Solutions25%- IPv4 and IPv6 addressing design
  • 1. Structured addressing plans
    • 2. Route summarization and aggregation
      - Routing protocol design
      • 1. OSPF design
        • 2. Route redistribution and filtering
          • 3. EIGRP design
            • 4. IS-IS design
              Network Services15%- IP services
              • 1. DHCP, DNS, NAT
                - Quality of Service (QoS)
                • 1. Policing, shaping, congestion management
                  • 2. Classification and marking
                    - Multicast design
                    Security Services10%- Security architecture design
                    • 1. Network segmentation
                      • 2. Threat defense integration
                        - Secure connectivity
                        WAN for Enterprise Networks20%- WAN connectivity options
                        • 1. MPLS, Metro Ethernet, 4G/5G
                          • 2. SD-WAN architecture and design
                            - VPN design
                            • 1. DMVPN, L2VPN, L3VPN
                              • 2. Site-to-site VPN
                                - WAN resiliency and high availability
                                Advanced Enterprise Campus Networks25%- Wireless integration
                                - Layer 2 campus design
                                • 1. Hierarchical architecture
                                  • 2. Spanning Tree Protocol optimization
                                    • 3. VLAN and trunking design
                                      - Layer 3 campus design
                                      • 1. Routing in campus infrastructure
                                        • 2. Virtualization and segmentation
                                          Software-Defined Access (SDA)5%- SD-Access architecture
                                          - Control plane and data plane design
                                          - Fabric design and deployment

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