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Cisco 300-420 Study Guide Archives Updated on Mar 17, 2025

Download 300-420 Mock Test Study Material

Cisco 300-420 exam is a certification exam designed for individuals who are interested in pursuing a career in network design. 300-420 exam tests the candidate’s knowledge and skills related to designing enterprise networks using Cisco technologies. Designing Cisco Enterprise Networks certification awarded upon passing the exam is the Cisco Certified Design Professional (CCDP).

Cisco 300-420 (Designing Cisco Enterprise Networks) Certification Exam is a professional-level certification exam that focuses on the design of enterprise-level networks using Cisco technologies. 300-420 exam is intended for enterprise network designers and architects who are responsible for designing and implementing complex network solutions. Successful completion of 300-420 exam will demonstrate your knowledge and understanding of the latest Cisco technologies and best practices for designing enterprise networks.

 

Q114. An engineer is upgrading a company’s main site to include a connection to a second ISP. The company will receive full Internet routing tables from both ISPs via BGP. The engineer must ensure that the company does not become a transit autonomous system. Which solution should be included in this design?

 
 
 
 

Q115. A network engineer replaced a bad router with a spare, used router in an OSPF network. After the replacement, OSPF neighborship is not being established on one of the interfaces. Which two reasons cause this issue? (Choose two)

 
 
 
 
 

Q116. Drag and drop the components in a Cisco SD-Access architecture from the left onto their descriptions on the right.

Q117. Which routes does the overlay management protocol advertise in an SD-WAN overlay?

 
 
 
 

Q118. An engineer uses Postman and YANG to configure a router with:
* OSPF process ID 400
* network 192.168.128.128/25 enabled for Area 0
Which get-config reply verifies that the model set was designed correctly?

 
 
 
 

Q119. Refer to the exhibit.

Refer to the exhibit. An architect is designing a BGP solution to connect a remote branch to a service provider. There are several prefixes within the branch that the company does not want to be advertised to the internet. Which solution should the architect use to accomplish this?

 
 
 
 

Q120. 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:
– A physical WAN solution is not available for most of the sites.
– The customer has a limited budget and a short time frame for
implementation.
– The backup link will have low bandwidth requirements.
– Users will tolerate a WAN outage of up to 2 hours.
Which backup WAN link type should the engineer recommend?

 
 
 
 

Q121. In a Cisco SD-Access fabric, which node is equivalent to an access layer switch in a traditional three-tier campus network design?

 
 
 
 

Q122. Refer to the exhibit. Customers report low video quality and delays when having point-to-point telepresence video calls between the two locations. An architect must optimize a design so that traffic follows the same path for egress and ingress traffic flows. Which technique optimizes the design?

 
 
 
 

Q123. Which feature of Cisco SD-WAN Secure Direct Cloud Access divides user traffic into different zones and VPNs or VRFs?

 
 
 
 

Q124. An engineer must design an addressing plan for a small business using a single /24 network. Each department must have its own subnet. Drag and drop the subnets from the left onto the departments requirements that they fulfill on the right. Not all options are used.

Q125. In an SD-WAN architecture, which methods are used to bootstrap a vEdge router?

 
 
 
 

Q126. Which design achieves SD-WAN control plane redundancy?

 
 
 
 

Q127. Refer to the exhibit.

Refer to the exhibit. An architect must design a solution to connect the two ASs. To optimize bandwidth, the design will implement load sharing between router R6 and router R4. Which solution should the design include?

 
 
 
 

Q128. 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 DMVPN 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?

 
 
 
 

Q129. Refer to the exhibit.

Refer to the exhibit. AS65533 and AS65530 are announcing a partial Internet routing table as well as their IP subnets. An architect must create a design that ensures AS64512 become a transit AS. Which filtering solution must the architect choose?

 
 
 
 

Q130. Refer to the exhibit.

An architect must design an IGP solution for an enterprise customer. The design must support:
Physical link flaps should have minimal impact.
Access routers should converge quickly after a link failure.
Which two ISIS solutions should the architect include in the design? (Choose two.)

 
 
 
 
 

Q131. Drag and drop the characteristics from the left onto the telemetry mode they apply to on the right.

Q132. Drag and drop the characteristics from the left onto the configuration protocols they describe on the right.

Q133. An engineer is designing a PIM Anycast RP solution between two data centers. The design must ensure that RP1 in DC1 and RP2 in DC2 inform each other about specific sources that have joined locally. Which solution must the engineer choose?

 
 
 
 

Q134. Which function are fabric intermediate nodes responsible for in an SD-Access Architecture?

 
 
 
 

Q135. A customer reports that each time a networking component fails, OSPF recalculates the backup path, with causes a short outage. Which solution must the customer implement to improve this situation?

 
 
 
 

Q136. An engineer is working with NETCONF and Cisco NX-OS based devices. The engineer needs a YANG model that supports a specific feature relevant only to Cisco NX-OS. Which model must the engineer choose?

 
 
 
 

Q137. An engineer is looking for a standards-driven YANG model to manage a multivendor network environment. Which model must the engineer choose?

 
 
 
 

300-420 Questions Prepare with Learning Information: https://www.actualtests4sure.com/300-420-test-questions.html

         

Related Links: zenwriting.net customerscomm.com www.wonderlink.de myportal.utt.edu.tt myportal.utt.edu.tt scalar.usc.edu

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