Designing Cisco Enterprise Networks: 300-420 Exam

"Designing Cisco Enterprise Networks", also known as 300-420 exam, is a Cisco Certification. With the complete collection of questions and answers, PrepAwayPDF has assembled to take you through 457 Q&As to your 300-420 Exam preparation. In the 300-420 exam resources, you will cover every field and category in CCNP Enterprise Certification helping to ready you for your successful Cisco Certification.

  • Exam Code: 300-420
  • Exam Name: Designing Cisco Enterprise Networks
  • Certification Provider: Cisco
  • Corresponding Certification: CCNP Enterprise
  • Updated: Sep 07, 2026
  • No. of Questions: 457 Questions & Answers with Testing Engine
  • Download Limit: Unlimited

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Cisco 300-420 Exam Certification Details:

Exam RegistrationPEARSON VUE
Duration90 minutes
Exam Code300-420 ENSLD
Sample QuestionsCisco 300-420 Sample Questions
Passing ScoreVariable (750-850 / 1000 Approx.)
Exam Price$300 USD
Number of Questions55-65
Recommended TrainingDesigning Cisco Enterprise Networks (ENSLD)
Exam NameDesigning Cisco Enterprise Networks

In the era of informational globalization, the world has witnessed climax of science and technology development, and has enjoyed the prosperity of various scientific blooms. In 21st century, every country had entered the period of talent competition, therefore, we must begin to extend our Cisco working skills, only by this can we become the pioneer among our competitors. At the same time, our competitors are trying to capture every opportunity and get a satisfying job. In this case, we need a professional 300-420 certification, which will help us stand out of the crowd and knock out the door of great company.

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Cisco 300-420 Exam Topics:

SectionWeightObjectives
Advanced Addressing and Routing Solutions25%-Create structured addressing plans for IPv4 and IPv6
-Create stable, secure, and scalable routing designs for IS-IS
-Create stable, secure, and scalable routing designs for EIGRP
-Create stable, secure, and scalable routing designs for OSPF
-Create stable, secure, and scalable routing designs for BGP
  • Address families
  • Basic route filtering
  • Attributes for path preference
  • Route reflectors
  • Load sharing

-Determine IPv6 migration strategies

  • Overlay (tunneling)
  • Native (dual-stacking)
  • Boundaries (IPv4/IPv6 translations)
Advanced Enterprise Campus Networks25%- Design campus networks for high availability
  • First Hop Redundancy Protocols
  • Platform abstraction techniques
  • Graceful restart
  • BFD

-Design campus Layer 2 infrastructures

  • STP scalability
  • Fast convergence
  • Loop-free technologies
  • PoE and WoL

-Design multicampus Layer 3 infrastructures

  • Convergence
  • Load sharing
  • Route summarization
  • Route filtering
  • VRFs
  • Optimal topologies
  • Redistribution

-Describe SD-Access Architecture (underlay, overlay, control and data plane, automation, wireless, and security)
-Describe SD-Access fabric design considerations for wired and wireless access (overlay, fabric design, control plan design, border design, segmentation, virtual networks, scalability, over the top and fabric for wireless, multicast)

Automation10%- Choose the correct YANG data model set based on requirements
-Differentiate between IETF, Openconfig, and Cisco native YANG models
-Differentiate between NETCONF and RESTCONF
-Describe the impact of model-driven telemetry on the network
  • Periodic publication
  • On-change publication

-Compare dial-in and dial-out approaches to model-driven telemetry

Network Services20%-Select appropriate QoS strategies to meet customer requirements (DiffServ, IntServ)
-Design end-to-end QoS policies
  • Classification and marking
  • Shaping
  • Policing
  • Queuing

-Design network management techniques

  • In-band vs. out-of-band
  • Segmented management networks
  • Prioritizing network management traffic

-Describe multicast routing concepts (source trees, shared trees, RPF, rendezvous points)
-Design multicast services (SSM, PIM bidirectional, MSDP)

WAN for Enterprise Networks20%-Compare WAN connectivity options
  • Layer 2 VPN
  • MPLS Layer 3 VPN
  • Metro Ethernet
  • DWDM
  • 4G/5G
  • SD-WAN customer edge

-Design site-to-site VPN

  • Dynamic Multipoint VPN (DMVPN)
  • Layer 2 VPN
  • MPLS Layer 3 VPN
  • IPsec
  • Generic Routing Encapsulation (GRE)
  • Group Encrypted Transport VPN (GET VPN)

-Design high availability for enterprise WAN

  • Single-homed
  • Multihomed
  • Backup connectivity
  • Failover

-Describe Cisco SD-WAN Architecture (orchestration plane, management plane, control plane, data plane, on-boarding and provisioning, security)
-Describe Cisco SD-WAN design considerations (control plane design, overlay design, LAN design, high availability, redundancy, scalability, security design, QoS and multicast over SD-WAN fabric)

Know about the test theme of Cisco 300-420 Exam

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

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

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