Cisco 300-420 ENSLD Enterprise Network Design Practice Exam

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Cisco 300-420 Designing Enterprise Networks

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About the Cisco 300-420 ENSLD Enterprise Network Design Certification

The Cisco 300-420 ENSLD Enterprise Network Design certification is designed for professionals who seek to show expertise in designing scalable and resilient enterprise network infrastructures. As technology evolves and industry demands grow more complex; this credential validates your ability to apply real-world skills and knowledge using Cisco tools and frameworks. Earning the certification positions you as a trusted expert, capable of solving high-impact challenges and contributing to secure, scalable, and efficient systems.

 

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Preparing for the Cisco 300-420 ENSLD Enterprise Network Design exam requires more than just reading documentation—it demands hands-on practice with realistic scenarios. PowerKram’s practice exams simulate the actual test environment, helping you reduce retakes, save on costly training, and build confidence. Our proprietary question sets mirror the structure and difficulty of the real exam, allowing you to focus your study efforts where they matter most. With a 24-hour free trial, you get full access to hundreds of questions and advanced scoring features—no credit card required.

 

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Test Your Knowledge of Cisco 300-420 ENSLD Enterprise Network Design

A company needs to support 500 users with future growth.

What should be considered in the design?

A) Scalable network architecture and modular design.
B) Hard-code all device IPs.
C) Ignore redundancy.
D) Use a single switch for all users.

 

Correct answers: A – Explanation:
Scalability and modularity allow growth. Single switch or lack of redundancy limits future expansion.

The client requires high availability for critical applications.

Which design element is essential?

A) Redundant links and devices.
B) Use only wireless access points.
C) Disable spanning tree.
D) Assign static routes everywhere.

 

Correct answers: A – Explanation:
Redundancy ensures high availability. Disabling protocols or relying on single devices increases risk.

There is a requirement for secure guest access.

What’s the recommended approach?

A) Isolate guest traffic using a separate VLAN and firewall rules.
B) Merge guest and corporate networks.
C) Use open Wi-Fi with no password.
D) Allow all guest devices on core VLAN.

 

Correct answers: A – Explanation:
Segregation and rules protect the main network. Merging or open access is insecure.

The company is expanding to a new building.

What design factor is critical?

A) Plan for fiber uplinks and backbone scalability.
B) Use only copper cables for all distances.
C) Ignore cable management.
D) Only add more wireless APs.

 

Correct answers: A – Explanation:
Fiber uplinks support high-speed, long-distance connections. Overreliance on copper or wireless is limiting.

The design must support seamless failover for WAN links.

Which solution is best?

A) Dual WAN links with automatic failover mechanisms.
B) Use just one ISP.
C) Disable routing protocols.
D) Only increase firewall throughput.

 

Correct answers: A – Explanation:
Dual WAN with failover ensures continuity. Single ISP or protocol changes do not.

Branch offices have different security requirements.

What design strategy is effective?

A) Customize security policies per site based on needs.
B) Use identical policies everywhere.
C) Disable firewalls at branches.
D) Only allow VPN access.

 

Correct answers: A – Explanation:
Tailoring policies addresses unique risks. Uniform or no controls reduce security.

The network must support both IPv4 and IPv6 users.

What design element is needed?

A) Dual-stack configuration on all devices.
B) Only enable IPv6.
C) Disable IPv4 everywhere.
D) Use a single switch for all users.

 

Correct answers: A – Explanation:
Dual-stack allows both protocols. Disabling one or using only translation limits compatibility.

The client wants centralized management.

What design enables this?

A) Deploy network management tools and controllers.
B) Require manual configuration at each site.
C) Disable SNMP.
D) Only use local logs.

 

Correct answers: A – Explanation:
Scalability and modularity allow growth. Single switch or lack of redundancy limits future expansion.

There is a need for rapid deployment of new sites.

What design feature helps?

A) Use automation and templated configurations.
B) Configure each device manually.
C) Ignore documentation.
D) Avoid using standards.

 

Correct answers: A – Explanation:
Automation speeds deployment and ensures consistency. Manual methods slow rollout.

The business wants to minimize downtime during upgrades.

What’s a recommended practice?

A) Schedule maintenance windows and use redundant paths.
B) Upgrade during business hours with no backup.
C) Ignore user notifications.
D) Only upgrade one device at a time.

 

Correct answers: A – Explanation:
Maintenance windows and redundancy reduce downtime impact. The other options are riskier.

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