300-420 Cisco Designing Cisco Enterprise Networks (ENSLD) Free Practice Exam Questions (2025 Updated)
Prepare effectively for your Cisco 300-420 Designing Cisco Enterprise Networks (ENSLD) certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.
What is the function of the multicast Reverse Path Forwarding check?
A company wants to switch from static routing to a dynamic routing protocol to ease the administrative and operational overhead. The network topology is hub and spoke, and the branches use DM VPN back to the hub with two 10-Mbps internet connections. The branch routers are multivendor and have limited memory and CPU resources. Which routing protocol and design solution meets the requirements?
An engineer must design a management network for a customer's enterprise network. The design must:
provide the ability to grant and revoke access privileges
allow only protocols SSH, NTP, FTP, and SNMP
restrict access to management Interfaces
Which solution must the engineer choose to meet the requirements?
A customer plans to adopt distributed QoS in their enterprise WAN. The policy must allow for individual packet marking according to the type of treatment required and for forwarding based on hop-by-hop treatment locally defined on each device. Which technology must the customer select?
Drag and drop the characteristics from the left onto the Yang model they describe on the right.
Select and Place:
Refer to the exhibit. An engineer must connect the IPv6 island to the IPv4-only network to provide IPv6 hosts access to file servers and DNS services in the IPv4 network. Which NAT should the engineer choose?
Refer to the exhibit. An architect is designing an ISIS solution with these requirements:
The backbone area will grow to 50 routers in the next 12 months.
Routers A1 and A2 must avoid suboptimal routing.
Summarization and route-leaking should be allowed in areas 49.002 and 49.003.
Which solution must the architect select?
Which design achieves SD-WAN control plane redundancy?
What is the purpose of an edge node in an SD-Access network fabric?
Refer to the exhibit. An architect is developing a solution to consolidate networks while retaining device redundancy. The routing protocol for the WAN routers must be open standard, ensure high availability, and provide the fastest convergence time. Which solution must the design include?
When IPsec VPNs are designed, what is a unique requirement if support for IP Multicast is required?
Which method does Cisco SD-WAN use to avoid fragmentation issues?
Which NETCONF operation creates filtering that is specific to the session notifications?
In Cisco SD-Access. virtual networks create segmentation that allows for separation of users and resources. How is this type of segmentation described?
Drag and drop the elements from the left onto the protocols where they are used on the right.
Graphical user interface, application
Description automatically generated
Refer to the exhibit. A company has some offices that are connected via dark fiber in New York. A network architect must optimize the network design based on the EIGRP routing protocol. The network has hierarchical addressing between 10 and 12 routers in each office. Routing convergence time must be at the minimum. What must the network architect do to reduce the query range?
An architect must design an IPv6 migration solution for a corporation with remote offices to support:
* The customer has IPv4 peering with their service provider.
* IPv6 users need access to IPv4 and IPv6 resources.
* Existing content providers will migrate to IPv6 in the next two years.
* Users will be migrated in a phase-by-phase approach.
Which migration solution must the architect choose?
A customer has several remote sites connected with their headquarters through microwave links. An engineer must propose a backup WAN solution based on these conditions:
Which backup WAN link type the engineer recommend?
Refer to the exhibit.
A customer is running HSRP on the core routers. Over time the company has grown and requires more
network capacity. In the current environment, some of the downstream interfaces are almost fully utilized, but
others are not. Which solution improves the situation?
Refer to the exhibit. A network engineer must design a highly available OSPF solution based on these requirements:
Traffic disruptions caused by link or node failures in Area-1 must be resolved in milliseconds.
In the event of a failure, traffic must switch to another path without waiting for the OSPF dead interval.
Which fault detection solution must the engineer choose?
