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300-420 Exam Questions & Answers

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Exam Code: 300-420
Exam Name: Designing Cisco Enterprise Networks (ENSLD)
Updated: Sep 21, 2023
Q&As: 260
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300-420 Online Practice Questions and Answers

Questions 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.)

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A. a new OSPF area for R1 and R2 connections, with R1 and R2 as ABRs

B. a new OSPF area for R3 and R4 connections, with R5 and R6 as ABRs

C. a new OSPF area for R3 and R4 connections, with R3 and R4 as 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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Questions 2

An architect is designing a multicast solution for a network that contains over 100 routers. The architect plans to create several multicast domains and balance the PIM-SM traffic within the network. Which technology should the architect include in the design?

A. DVMRP

B. IGMP

C. MOSPF

D. MSDP

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Questions 3

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

A. to maintain the endpoint database and mapping between endpoints and edge nodes

B. to detect endpoints in the fabric and inform the host tracking database of EID-to-fabric-edge node bindings

C. to identify and authenticate endpoints within the network fabric

D. to act as the network gateway between the network fabric and outside networks

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