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Latest 300-420 Exam Practice Questions

The practice questions for 300-420 exam was last updated on 2025-07-17 .

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Question#1

Which two statements describe source trees in a multicast environment? (Choose two.)

A. Source trees guarantee the minimum amount of network latency for forwarding multicast traffic

B. Source trees create an optimal path between the source and the receivers

C. Source trees use a single common root placed at some chosen point in the network

D. Source trees can introduce latency in packet delivery

E. Source trees can create suboptimal paths between the source and the receivers

Explanation:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16-5/imc-pim-xe-16-5-book/imc-tech-oview.html

Question#2

A network solution is being designed for a company that connects to multiple Internet service providers.
Which Cisco proprietary BGP path attribute will influence outbound traffic flow?

A. Local Preference

B. MED

C. Weight

D. AS Path

E. Community

Question#3

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

A. border node

B. spine node

C. leaf node

D. Cisco DNA Center

Question#4

Which design element should an engineer consider when multicast is included in a Cisco SD-Access architecture?

A. PIM SSM must run in the underlay.

B. Multicast clients reside in the underlay, and the multicast source is outside the fabric or in the overlay.

C. Rendezvous points must be used in a PIM SSM deployment.

D. Multicast traffic is transported in the overlay and the EID space for wired and wireless clients.

Explanation:
Multicast traffic is transported in the overlay, in the EID space, for both wired and wireless clients
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKEWN-2020.pdf
https://www.cisco.com/c/dam/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/deploy-guide/cisco-dna-center-sd-access-wl-dg.pdf

Question#5

Which two functions are provided by the Cisco SD-WAN orchestration plane? (Choose two.)

A. centralized provisioning

B. primary authentication point

C. NAT traversal facilitation

D. Zero Touch Provisioning

E. troubleshooting and monitoring

Exam Code: 300-420Q & A: 339 Q&AsUpdated: 2025-07-17

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