300-420 Exam Questions

What is the purpose of a border node in a Cisco SD-Access fabric?

Refer to the exhibit. An engineer must ensure that the QoS design guarantees bandwidth for the applications, and an application can request a particular type of service to support...

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 bran...

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 prot...

A company requested that an architect propose a new IPv4 and IPv6 deployment strategy. The company wants a solution that is straightforward, with no information hiding or forwardin...

An engineer working for a service provider with an employee ID: 4859:86:437 must design a solution to provide remote connectivity over the public internet. The design must: - secur...

Refer to the exhibit. An architect must design a resilient gateway solution based on these requirements: - VLAN 10 and VLAN 11 support voice and video applications. - Link and node...

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 physica...

A company requires a private WAN design that allows remote sites to connect to HQ. The design must ensure that: - traffic is always encrypted - forwarding overhead is reduced - man...

An architect is designing how the company will manage the infrastructure of a large data center. The company wants to group device types for security reasons and mitigate DoS attac...

Refer to the exhibit. An architect is designing a Layer 2 network for a customer. The network will use the spanning-tree protocol. During a link failure between SW1 and SW2, the fa...

A customer is undergoing a WAN re-architecture and wants to design QoS policies for remote sites that have low bandwidth. What must be considered to have CBWFQ configured in the pa...

When is it advisable to provide dedicated control plane nodes within a Cisco SD-Access design?

An architect must design a QoS model for a business-critical application that is delay-sensitive and requires high bandwidth. The company's head office hosts the application, and D...

Which element in a Cisco SD-WAN architecture maintains a centralized routing table?

Refer to the exhibit. A network architect is preparing a network design based on the EIGRR. Routers are connected using a cat6a cable type and the inter-router connection speed is...

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 bran...

What is an advantage of using model-driven telemetry in the network?

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

What is the purpose of the fabric control plane in a Cisco SD-Access architecture?

A network engineer must design a multicast solution based on these requirements: - interactive communication - must not use source trees - users must register - 100 multicast sourc...

Refer to the exhibit. An architect is designing an IPv4 plan using the 172.16.0.0/16. The design must maximize the number of subnets while meeting these requirements: - 500 hosts w...

An architect must design a topology for a WAN network that satisfies these requirements: - Devices must be able to make informed decisions. - Suboptimal paths are allowed only in c...

Refer to the exhibits. An engineer is troubleshooting an issue in which the Gig0/2 interface on a Cisco switch named SW2 fails to become the root port. Which two commands must be r...

Currently, inter-VRF routing between the global routing table and VRF-A is accomplished on the client firewall, but the customer wants to do this on the core network layer. The cus...

An architect is designing a network solution for a customer. The network is IPv6-only with 1000 hosts. The design must provide external access to up to 10 concurrent IPv6 hosts to...

What is the main purpose of the Cisco SD-Access underlay design?

When expanding an existing Cisco SD-Access network, in addition to the control plane, which two device roles are needed to create an additional fabric site? (Choose two.)

What is the purpose of the fabric management plane in a Cisco SD-Access architecture?

Refer to the exhibit. An engineer with an employee ID: 1234:56:789 must design a WoL deployment for a client, and the design must ensure that the Windows PCs are responsive to the...

Refer to the exhibit. A customer requires a Layer 2 network designed to support: - 500 active logical ports - trunking of 30 VLANs - convergence of less than 1 second Which Spannin...

Which two considerations must be made regarding the overlay network for a Cisco SD-Access architecture? (Choose two.)

An enterprise needs to enhance its WAN availability after a recent outage with its only MPLS provider. The proposed solution must have a quick deployment, be affordable, be reliabl...

What is the purpose of Cisco vBond as a Session Traversal Utilities for NAT server?

A company wants to enable several third-party video conferencing networks based on multicast services. The video conferencing platform can accommodate numerous and dispersed sender...

A customer requested that a guaranteed service line be enabled for a manufacturing business in different countries. On the customer side, the QoS-aware application is used to proce...

In PIM sparse mode, if an RPF check is successful on a multicast-enabled device, what happens to the multicast packet?

What is a challenge of the SaaS model?

Which integration capability does gRPC provide?

Drag and Drop Question Drag and drop the Cisco Catalyst SD-WAN components from the left to their definitions on the right. Answer:

Refer to the exhibit. An architect is designing an IPv4 plan using the 172.20.0.0/16 network. The design must maximize the number of subnets and minimize the number of wasted IP ad...

Refer to the exhibit. A large company is planning to deploy OSPF in this environment. - All routers will be in Area 0. - R1 will support an isolated environment that does not requi...

Refer to the exhibit. Company A acquired Company B, and the companies want to use the same shared core. However, the companies must not learn each other's prefixes. Which two addre...

Refer to the exhibit. A company architect proposed this network design as a part of the IPv6 migration strategy. What are two advantages of this design? (Choose two.)

An architect is designing an IPv4 plan for a branch office using 10.224.4.0/23. The design must maximize the number of subnets and allow for the doubling of hosts. The solution has...

An architect is designing an IPv6 plan using the 2001:adb8:8086:265::/64 network for three branch locations. The design must maximize the number of subnets and minimize the number...

Refer to the exhibit. The company is in the design phase of the network lifecycle, and this is the proposed design that the lead architect must validate. Which two issues must the...

Refer to the exhibit. Which route filtering technique is required within AS64514 to ensure that BGP prefixes originating locally are not accepted from AS64512 or AS64513?

Refer to the exhibit. A mid-size company that produces media content has four offices across the country connected via MPLS Layer 3 service, which is provided by a local ISP. The n...

Refer to the exhibit. A company wants to minimize interruptions to the data plane forwarding, avoid unnecessary route recomputation, and conserve router resources during router rel...