Designing Cisco Enterprise Networks - 300-420 Exam Practice Test

Question 1

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 fastest possible convergence time is desired. Which solution must the architect select?

A. Loop Guard

B. PortFast

C. UplinkFast

D. BackboneFast

Correct Answer: C

Question 2

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

A. secure data traffic between Cisco Catalyst SD-WAN edge routers that use IPsec

B. integrate Cisco SD-Access Wireless into the fabric

C. allow Cisco Catalyst SD-WAN routers to locate their own mapped IP addresses

D. provide Zero-Touch Provisioning to Cisco Catalyst SD-WAN vEdge devices

Correct Answer: D

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Question 3

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

A. map server

B. LISP proxy ETR

C. host tracking databasepolicy

D. endpoint registration

E. mapping

Correct Answer: A,C

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Question 4

An engineer must design a solution to connect a customer to the Internet. The solution will include a Layer 3 circuit with a CIR of 50 Mbps from the service provider. The hand-off from the provider's switch to the customer's router is 1Gbps. Which solution should the engineer include to prevent potential issues with choppy voice traffic?

A. Implement hierarchical QoS with a parent policing policy.

B. Implement hierarchical QoS with a parent shaping policy

C. Add a bandwidth statement to the router interface.

D. Reduce the bandwidth of the connection to the router.

Correct Answer: B

Question 5

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?

A. no-export

B. Next-hop

C. Maximum-prefix

D. No-advertise

Correct Answer: A

Question 6

Drag and Drop Question
Drag and drop the steps WAN Edge performs when on-boarded into the Cisco SD-WAN overlay from the left into the order they are completed on the right.

Correct Answer:

Question 7

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

A. create and resolve endpoint-to-location mapping

B. create a transit node with BGP route reflector functionality

C. create, propagate, and enforce GBAC policies in the fabric

D. extend multiple subnets to one RLOC

Correct Answer: A

Question 8

Refer to the exhibit. An engineer must design an automatic failover solution. The solution should allow HSRP to detect a WAN 1 failure and initiate an automatic failover, making router R2 the active HSRP router. Which two solutions should the engineer choose? (Choose two.)

A. use a floating static route

B. Implement Enhanced Object Tracking on roster R1

C. Implement IP SLA on router R1

D. Implement PBR on router R1

E. use IP source routing

Correct Answer: B,C

Question 9

What are two benefits of designing an SD-WAN network fabric with direct Internet access implemented at every site? (Choose two.)

A. It decreases latency on Internet circuits.

B. It increases the speed of delivery of site deployments through zero-touch provisioning.

C. It alleviates network traffic on MPLS circuits.

D. It increases the total available bandwidth on Internet circuits.

E. It decreases latency to applications hosted by public cloud service provider.

Correct Answer: C,E

Question 10

Which three pieces of information are carried on OSPF type 3 LSAs? (Choose three)

A. subnet mask

B. authentication type

C. IP subnet

D. external route tag

E. link state

F. metric

Correct Answer: A,C,F

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Cisco Designing Cisco Enterprise Networks - 300-420 Exam Practice Test

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