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Free Cisco 300-420 Practice Exam with Questions & Answers | Set: 7

Questions 61

An engineer is upgrading a company’s main site to include a connection to a second ISP. The company will receive full Internet routing tables from both ISPs via BGP. The engineer must ensure that the company does not become a transit autonomous system. Which solution should be included in this design?

Options:
A.

Tag incoming routes from both ISPs with BGP community no-export.

B.

Lower the MED for updates sent to the secondary ISP.

C.

Use a route-map to prevent all prefixes from being advertised to either ISP.

D.

Modify the local-preference for routes incoming from the primary ISP.

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Questions 62

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

Options:
A.

to abstract IP-based connectivity from physical connectivity

B.

to emulate LAN segments to transport Layer 2 frames over a Layer 3 network

C.

to establish physical connectivity between switches and routers

D.

to provide virtualization by encapsulating network traffic over IP tunnels

Questions 63

An engineer is creating a design to enable IPv6 to run on an existing IPv4 IS-IS network. The IPv4 and IPv6 topologies will match exactly, and the engineer plans to use the same router levels for each protocol per interface. Which IS-IS design is required?

Options:
A.

single topology without enabling transition feature

B.

single topology with transition feature enabled

C.

multi topology with transition feature enabled

D.

multi topology without enabling transition feature

Questions 64

An engineer must design a routing solution for a company that is single-homed to an ISP. The company's goal is to run BGP between the CE and the PE devices. To support running BGP, the company obtained a public AS number and IP subnet from ARIN. Which solution must the engineer select?

Options:
A.

• The customer announces the public IP subnet to the ISP

• The ISP announces the default route to the customer.

B.

• The customer announces the public IP subnet to the ISP

• The ISP announces the BGP table to the customer

C.

• The ISP announces the customer public IP subnet.

• The ISP announces the partial BGP table to the customer.

D.

• The customer announces the default route to the ISP

• The ISP announces the default route to the customer

Questions 65

300-420 Question 65

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?

Options:
A.

Make area 1 a NSSA.

B.

Make area 1 a stub.

C.

Make area 1 a standard OSPF area.

D.

Make the area 1 routers part of area 0.

Questions 66

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

300-420 Question 66

Options:
Questions 67

An engineer is designing a multicast network for a company specializing in VoD content. Receivers are across the Internet, and for performance reasons, the multicast framework close to the receivers within each AS. For high availability, if the sources in one AS are no longer available, the receivers of that AS must be able to receive the VoD content from sources in another AS. Which feature must the design include?

Options:
A.

Bidirectional PIM

B.

SSM

C.

Anycast RP

D.

MSDP

Questions 68

What is the purpose of a TLOC extension in a Cisco SD-WAN network fabric?

Options:
A.

to facilitate WAN Edge router redundancy within a site

B.

to identify the physical interface where a WAN Edge router connects to the WAN transport network

C.

to expand the number of colors that are potentially applied to a network transport interface

D.

to aggregate multiple physical interfaces into a single logical Interface

Questions 69

Refer to the exhibit.

300-420 Question 69

An architect is designing an EIGRP solution based on these requirements:

* Traffic forwarding should use the best two paths while all links are available

* Single path failure must not impact traffic between branch and HQ

Which solution must the architect select?

Options:
A.

Maximum-paths 2

B.

Add-paths 2

C.

Metric weights 010100

D.

Variance 2

Questions 70

300-420 Question 70

Refer to the exhibit An engineer is designing an OSPF solution with these requirements:

    NMS server will manage R5 and R6.

    Upon failure of R1. all NMS traffic should be routed through R4.

    Upon failure of the link between R5 and R6. all traffic destined for 10.6.6.6 should be routed through R4

Which solution must the engineer choose?

Options:
A.

Advertise 172.16.1.1 into OSPF process 1 with high cost on R1.

B.

Apply static routes on R2 and R3 with IP SLA tracking toward R5 and R6.

C.

Enable the default-Information originate command with a higher metric on R2 to R1.

D.

Redistribute OSPF process 1 into process 2 on R1 and R4.

Exam Code: 300-420
Certification Provider: Cisco
Exam Name: Designing Cisco Enterprise Networks (ENSLD)
Last Update: Jul 10, 2025
Questions: 339

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