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Updated: Aug 17, 2026

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Cisco 300-420 Exam Overview:

Certification Vendor:Cisco
Exam Name:Designing Cisco Enterprise Networks
Exam Number:300-420 ENSLD
Certificate Validity Period:3 years
Exam Format:Multiple choice, Drag-and-drop, Scenario-based, Simulations
Real Exam Qty:55–65
Passing Score:Pass/Fail
Exam Duration:90 minutes
Exam Price:USD 400
Available Languages:English, Japanese
Related Certifications:Cisco Certified Network Professional (CCNP) Enterprise
Cisco Certified Specialist – Enterprise Design
Recommended Training:Designing Cisco Enterprise Networks (ENSLD) Official Training
Exam Registration:Pearson VUE
Cisco Official Registration
Sample Questions:Cisco 300-420 Sample Questions
Exam Way:Online proctored or in-person at authorized test centers
Pre Condition:Recommended: Implementing and Operating Cisco Enterprise Network Core Technologies (350-401 ENCOR) or equivalent knowledge
Official Syllabus URL:https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/ensld-300-420.html

Exam Policies for 300-420

There are some policies that one should know before going for the Cisco 300-420 exam. They will give you a clear idea as to the official requirements for those who can earn the certificates:

  • Children under the age of 13 cannot apply for Cisco certifications even if they manage to get their parents' approval.
  • Finally, adults of age 18 and above can appear for the exams with no need for any permissions.
  • Secondly, candidates between the ages of 13 and 17 are minors and must have prior consent from their parents or guardians to earn this certification.

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

Conclusion

In conclusion, we want to mention that passing the Cisco 300-420 can be very easy if you take advantage of exam dumps and also polish your preparation with practice tests. You can get these tools for free or purchase them on various online platforms. As you can see, there are a lot of resources that you can use, so don’t waste your time and start your journey today!

Cisco 300-420 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Network Services15%- Multicast design
- Quality of Service (QoS)
  • 1. Policing, shaping, congestion management
    • 2. Classification and marking
      - IP services
      • 1. DHCP, DNS, NAT
        Topic 2: Software-Defined Access (SDA)5%- SD-Access architecture
        - Control plane and data plane design
        - Fabric design and deployment
        Topic 3: Security Services10%- Security architecture design
        • 1. Threat defense integration
          • 2. Network segmentation
            - Secure connectivity
            Topic 4: WAN for Enterprise Networks20%- WAN resiliency and high availability
            - VPN design
            • 1. Site-to-site VPN
              • 2. DMVPN, L2VPN, L3VPN
                - WAN connectivity options
                • 1. MPLS, Metro Ethernet, 4G/5G
                  • 2. SD-WAN architecture and design
                    Topic 5: Advanced Enterprise Campus Networks25%- Wireless integration
                    - Layer 2 campus design
                    • 1. Hierarchical architecture
                      • 2. VLAN and trunking design
                        • 3. Spanning Tree Protocol optimization
                          - Layer 3 campus design
                          • 1. Routing in campus infrastructure
                            • 2. Virtualization and segmentation
                              Topic 6: Advanced Addressing and Routing Solutions25%- IPv4 and IPv6 addressing design
                              • 1. Route summarization and aggregation
                                • 2. Structured addressing plans
                                  - Routing protocol design
                                  • 1. EIGRP design
                                    • 2. Route redistribution and filtering
                                      • 3. OSPF design
                                        • 4. IS-IS design

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                                          Frequently Asked Questions

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                                          Yes, you will enjoy one year free update after purchase. If there is any update, our system will automatically send the updated study material to your payment email.

                                          What's the applicable operating system of the 300-420 test engine?

                                          Online Test Engine can supports Windows / Mac / Android / iOS, etc., because it is the software based on WEB browser. You can use it on any electronic device and practice with self-paced.
                                          Online Test Engine supports offline practice, while the precondition is that you should run it with the internet at the first time.
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