300-420 Exam Questions

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

A global organization with several branches hired a network architect to design an overlay VPN solution. The branches communicate with each other frequently. The customer expects t...

An engineer is creating a design to enable IPv6 to run on an existing IPv4 IS-IS network. The IPv4 and IPv6 topologies will match exactly, and the engineer plans to use the same ro...

Refer to the exhibit. An architect reviews the low-level design of a company's enterprise network and advises optimizing the STP convergence time. Which functionality must be to Gi...

Which method does Cisco SD-WAN use to avoid fragmentation issues?

Refer to the exhibit. An architect must create a stable and scalable EIGRP solution for a customer. The design must: - conserve bandwidth, memory, and CPU processing - prevent subo...

An engineer must design a large Layer 2 domain that contains hundreds of switches and VLANs. The engineer's primary goals are to: - Efficiently utilize the bandwidth of all links -...

An engineer is designing a multicast network for a financial application Most of the multicast sources also receive multicast traffic (many-to-many deployment model). To better rou...

An organization plans to deploy multicast across two different autonomous systems. Their solution must allow RPs to: - discover active sources outside their domain - use the underl...

Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect...

The customer solution requires QoS to support streaming multimedia over a WAN. An architect chooses to use Per-Hop Behavior. Which solution should the engineer use to of mark traff...

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. Whi...

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...

Refer to the exhibit. Where must an architect plan for route summarization for the topology?

An engineer must design a QoS solution for a customer that is connected to an ISP over a 1Gbps link with a 100Mbps CIR. The ISP aggressively drops all traffic received over which i...

An engineer is designing a multicast network for a company specializing in VoD content. Receivers are across the Internet, and for performance reasons, the multicast framework must...

A company is planning to open two new branches and allocate the 2a01:c30:16:7009::3800/118 IPv6 network for the region. Each branch should have the capacity to accommodate maximum...

An engineer must connect a new remote site to an existing OSPF network. The new site consists of two low-end routers, one for WAN, and one for LAN. There is no demand for traffic t...

Drag and Drop Question Drag and drop the characteristics from the left onto the configuration protocols they describe on the right. Answer:

Drag and Drop Question Drag and drop the descriptions from the left onto the corresponding VPN types on the rights. Answer:

Which component is part of the Cisco SD-Access overlay architecture?

Drag and Drop Question Drag and drop the elements from the left onto the functions they perform in the Cisco SD-WAN architecture on the right. Answer:

Drag and Drop Question Drag and drop the characteristics from the left onto the YANG models they describe on the right. Not all options are used. Answer:

An engineer uses Postman and YANG to configure a router with: - OSPF process ID 200 - network 172.16.10.128/26 enabled for Area 0 Which get-config reply verifies that the model set...

An engineer must use YANG with an XML representation to configure a Cisco IOS XE switch with these specifications: - IP address 10.10.10.10/27 configured on the interface GigabitEt...

Drag and Drop Question Drag and drop the elements from the left onto the YANG models where they and used on the right. Answer:

Refer to the exhibit. A network engineer must improve the current IS-IS environment. The Catalyst switch is equipped with dual supervisors. Each time a stateful switchover occurs,...

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 route...

Refer to the exhibit. An engineer is designing a routing solution for a customer. The design must ensure that a failure of network 10.1.0.0/24, 10.1.2.0/24, 10.2.1.0/24, or 10.2.3....

Refer to the exhibit. A network engineer is designing a network for AS100. The design should ensure that all traffic enters AS100 via link 1 unless there is a network failure. In t...

Refer to the exhibit. An architect must design a solution that uses the direct link between R1 and R2 for traffic from 10.10.10.0/24 toward network 10.10.20.0/24. Which solution sh...

Refer to the exhibit. An engineer must design a WAN solution so that ISP-1 is always preferred over ISP-2. The path via ISP-2 is considered as a backup and must be used only when t...

Which topology within a network underlay eliminates the need for first hop redundancy protocols while improving fault tolerance, increasing resiliency, and simplifying the network?

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 do...

An architect must develop a campus network solution that includes: - logically segmented and isolated networks - ability to communicate between network segments when required - sup...

Which feature is used to optimize WAN bandwidth of IGMP network traffic among WAN Edge routers in the same VPN?

Which consideration must be made when designing a Cisco SD-Access fabric underlay?

Which two functions does the control plane node provide in a Cisco SD-Access architecture? (Choose two.)

An ISP provides Layer 3 VPN service over MPLS to a customer with four branches and multiple CE routers at each branch. To exchange the routes that are learned from the CE routers,...

In the SD-WAN underlay network, which WAN Edge VPN ID is defined as the transport VPN and is used to carry control traffic?

A company's security policy requires that all connections between sites be encrypted in a manner that does not require maintenance of permanent tunnels. The sites are connected thr...

An engineer must design a QoS solution for a customer. The network currently supports data only, but the customer will roll out VoIP and IP video in conjunction with the new QoS so...

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 s...

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 forwardin...

Refer to the exhibit. A network engineer is designing an OSPF solution to connect a company's remote to a newly provisioned MPLS VPN backbone. Some of the branches have a direct da...

Which control-plane protocol is used to map an endpoint to a location in a Cisco SD-Access network?

An architect must create a QoS solution for a customer to ensure that a 40 Mbps Internet connection is shared between four subnets based on these requirements: - Each subnet must r...

An engineer is designing a network for a customer running a wireless network with a common VLAN for all APs. The customer is experiencing unicast flooding in the Layer 2 network be...

Refer to the exhibit. A customer wants to adopt a dynamic site-to-site VPN solution to secure communication for VoIP, video, and FTP traffic between the remote branches and the hea...

Which node performs the LISP Map-Server and Map-Resolver functions in the Cisco SD-Access network architecture?