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300-420 Exam Dumps : Designing Cisco Enterprise Networks (ENSLD)

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Designing Cisco Enterprise Networks (ENSLD) Questions and Answers

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Question 1

Refer to the exhibit. All routers currently reside in OSPF area 0. The network manager recently used R1 and R2 as aggregation routers for remote branch locations and R3 and R4 for aggregation routers for remote office locations. The network has since been suffering from outages, which are causing frequent SPF runs. To enhance stability and introduce areas to the OSPF network with the minimal number of ABRs possible, which two solutions should the network manager recommend? (Choose two.)

Options:

A.

a new OSPF area for R1 and R2 connections,with R1 and R2as ABRs

B.

a new OSPF area for R3 and R4 connections,with R5 and R6as ABRs

C.

a new OSPF area for R3 and R4 connections,with R3 and R4as ABRs

D.

a new OSPF area for R1, R2, R3, and R4 connections, with R1, R2, R3, and R4 as

ABRs

E.

a new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs

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Question 2

Refer to the exhibit. The connection between SW2 and SW3 is fiber and occasionally experiences unidirectional link failure. An architect must optimize the network to reduce the change of layer2 forwarding loops when the link fails. Which solution should the architect include?

Options:

A.

Utilize 8PDU filter on SW3.

B.

Utilize loop guard on SW2

C.

Utilize BPDU guard on SW1

D.

Utilize root guard on SW1.

Question 3

An engineer must design a solution to provide backup connectivity between two sites. The engineer plans to use an Internet connection but company policy requires the connection to be encrypted. Additionally, there are several applications that utilize multicast to deliver video streams between the sites. Which technology should the design include?

Options:

A.

GRE over IPsec

B.

IPsec direct encapsulation

C.

GETVPN

D.

DMVPN

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