300-420 Dumps (V14.02) Help You Pass Exam with Confidence: Continue to Read 300-420 Free Dumps (Part 3, Q80-Q119)

1. How is redundancy achieved among Cisco vBond Orchestrators in a Cisco SD-WAN deployment?

2. Which PIM mode uses a shared tree only?

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

4. What is the function of the multicast Reverse Path Forwarding check?

5. A client is moving to Model-Driven Telemetry and requires periodic updates.

What must the network architect consider with this design?

6. 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?

7. An architect is designing a network that will utilize the spanning tree protocol to ensure a loop-free topology. The network will support an engineering environment where it is necessary for end users to connect their own network switches for testing purposes.

Which feature should the architect include in the design to ensure the spanning tree topology is not affected by these rogue switches?

8. An engineer is designing a Layer 3 campus network running EIGRP between the core, aggregation, and access layers. The access layer switches will be connected to the aggregation layer using Layer 3 copper connections. The engineer wants to improve convergence time for access layer switch failures.

Which technique must the design include?

9. 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?

10. DRAG DROP

Drag and drop the characteristics from the left onto the Yang model they describe on the right.

11. An existing network solution is using BFD in echo mode. Several of the network devices are experiencing high CPU utilization which an engineer has determined is related to the BFD feature.

Which solution should the engineer leverage to reduce the CPU load?

12. Refer to the exhibit.

An engineer is designing a BGP solution for a client that peers with ISP1 for full Internet connectivity and with ISP2 for direct exchange of routes for several third parties.

Which action, when implemented on the edge routers, enables the client network to reach the Internet through ISP1?

Run an eBGP session within different VRFs for each ISP.

Advertise a default route for downstream routers within the client network.

Apply the AS-path prepend feature for ISP2.

Apply route filtering such that the client advertises only routes originated from its own AS.

13. An architect is working on a design to connect a company's main site to several small to medium-

sized remote branches. The solution must include redundant WAN links, but the customer has a limited budget and wants the ability to increase the link speed easily in the future. QoS will not on the branch routers so there is no need for consistent end-to-end QoS.

Which solution does the architect propose?

14. Refer to the exhibit.

An architect must design an IP addressing scheme for a multisite network connected via a WAN transit. The campus site must accommodate 12,000 devices and the branch sites must accommodate 1,000 devices.

Which address scheme optimizes network device resources, contains convergence events to the different blocks of the network, and ensures future growth of the network?

15. 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?

16. Refer to the exhibit.

Customers report low video quality and delays when having point-to-point telepresence video calls between the two locations. An architect must optimize a design so that traffic follows the same path for egress and ingress traffic flows.

Which technique optimizes the design?

17. An engineer must design a scalable QoS architecture that allows the separation of the traffic into classes on predefined business requirements. The design must also utilize the differentiated services code points as the QoS priority descriptor value and support at least 10 levels of classification.

Which QoS technology should the engineer include in the design?

18. Refer to the exhibit.

Area 10 is a regular OSPF area and networks 10.1.1.0/24 and 172.16.1.0/24 are internal.

Which design provides optimal routing between both networks when the link between routers C and E fails?

19. An architect is creating a migration strategy for a large organization in which the choice made by the application between IPv6 and IPv4 is based on the DNS request.

Which migration strategy does the architect choose?

20. Refer to the exhibit.

An engineer is designing an OSPF network for a client. Requirements dictate that the routers in Area 1 should receive all routes belonging to the network, including EIGRP, except the ones originated in the RIP domain.

Which action should the engineer take?

21. An engineer must propose a solution for a campus network that includes the capability to create multiple Layer 3 virtual networks. Each network must have its own addressing structure and routing table for data forwarding. The solution must be scalable to support hundreds of virtual networks and allow simple configuration and management with minimal administrative overhead.

Which solution does the engineer recommend?

22. DRAG DROP

Drag and drop the model driven telemetry characteristics from the left onto the mode they belong to on the right.

23. Refer to the exhibit.

Which two solutions maximize the use of the links between the core and distribution layers? (Choose two.)

24. An engineer is tasked with designing a dual BGP peering solution with a service provider.

The design must meet these conditions:

✑ The routers will not learn any prefix with a subnet mask greater than /24.

✑ The routers will determine the routes to include in the routing table based on the length of the mask alone.

✑ The routers will make this selection regardless of the service provider configuration.

Which solution should the engineer include in the design?

25. An engineer is designing an EIGRP network for a small branch site where there is only one Layer 3 router. The engineer wants the router to advertise the local LAN network to remote EIGRP neighbors without sending any unnecessary multicast messages on the local LAN.

Which action should the engineer take?

26. A network engineer is redesigning a company's QoS solution. The company is currently using IP Precedence, but the engineer plans to move to DiffServ. It is important that the new solution provide backward compatibility with the current solution.

Which technology should the design include?

27. A customer's current Layer 2 infrastructure is running Spanning Tree 802.1d, and all configuration changes are manually implemented on each switch.

An architect must redesign the Layer 2 domain to achieve these goals:

✑ reduce the impact of topology changes

✑ reduce the time spent on network administration

✑ reduce manual configuration errors

Which two solutions should the architect include in the new design? (Choose two.)

28. How is sub-second failure of a transport link detected in a Cisco SD-WAN network?

29. A customer’s environment includes hosts that support IPv6-only. Several of these hosts must communicate with a public web server that has only IPv4 domain name resolution.

Which solution should the customer use in this environment?

30. 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.)

31. An architect must address sustained congestion on the access and distribution uplink of network. QoS has already been implemented and optimized, but it is no longer effective in ensuring optimal network performance.

Which two solutions should the architect use to improver network performance? (Choose two)

32. 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?

33. Refer to the exhibit.

The distribution switches serve as the layer 3 boundary. HSRP preemption is enabled. When the primary switch comes back after a failure, traffic is initially dropped.

Which solution must be implemented to improve the design?

34. Refer to the exhibit.

An architect must design a solution to connect the network behind R3 with the EIGRP network.

Which mechanism should be included to avoid routing loops?

35. Refer to the exhibit.

A customer needs to apply QoS to the network management traffic passing through the GigabitEthernet0/2 interface. All eight queuing classes are in use, so the new requirement must be integrated into the existing policy.

Which solution must the customer choose?

36. DRAG DROP

Drag and drop the description from the left onto the corresponding WAN connectivity types and categories on the right.

37. A customer requests a VPN solution to connect multiple sites with the company headquarters. All the sites use the same IP subnet. The engineer plans to use VPLS.

Which solutions must the engineer include in the design?

38. What is the purpose of a Cisco SD-Access underlay network?

39. Refer to the exhibit.

An architect is designing a BGP solution to connect a remote branch to a service provider. There are several prefixes within the branch that the company does not want to be advertised to the internet.

Which solution should the architect use to accomplish this?

40. DRAG DROP

Drag and drop the characteristics from the left onto the YANG modules they describe on the right. Not all options are used.