Free 300-420 Questions for Cisco Designing Cisco Enterprise Networks 300-420 Exam as PDF & Practice Test Engine

Which two statements are true regarding SD-WAN demonstrations? (Choose two.)

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

An engineer must configure a Cisco router by using the EIGRP stub command to ensure that adjacent neighbors receive all the necessary prefixes. Which EIGRP stub mode must be used to meet this requirement?

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?

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?

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?

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?

Refer to the exhibit. An architect must design a solution to connect bank site A with bank site B and support:
- network operation center monitoring end-to-end L3VPN and L2VPN
traffic
- company adding thousands of routes in the next two years
Which two BGP solutions must the design include? (Choose two.)

An engineer must design a multicast network for a financial application.
Most of the multicast sources also receive multicast traffic (many-to-many deployment model).
To better scale routing tables, the design must not use source trees.
Which multicast protocol satisfies these requirements?

What is the function of the multicast Reverse Path Forwarding check?

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

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 Spanning Tree Protocol must be selected?

How does a model-driven telemetry dial-out approach function?

Which feature provides the capability for intra-VN traffic filtering and control within the Cisco SD- Access architecture?

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?