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300-420 Real Exam Questions

Designing Cisco Enterprise Networks (ENSLD)

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Question 1 Single choice

What is the purpose of service routes in OMP updates?

  1. A

    define the remote management information

  2. B

    specify routes toward a centralized orchestration plane

  3. C

    describe underlay transport information

  4. D

    indicate services that are enabled for service insertion

Show answer and explanation

Correct answer: D

Question 2 Single choice

Which OSPF area blocks LSA Type 3, 4 and 5, but allows a default summary route?

  1. A

    normal

  2. B

    stub

  3. C

    NSSA

  4. D

    totally stubby

Show answer and explanation

Correct answer: D

Question 3 Single choice

An architect is designing a connectivity solution for a customer's two small branch offices. The customer wants a cost-effective design, no routing overhead, and some down time during the year is acceptable.

Which connectivity solution must the architect choose?

  1. A

    single-homed

  2. B

    dual multihomed

  3. C

    single multihomed

  4. D

    dual-homed

Show answer and explanation

Correct answer: A

Question 4 Single choice

A network administrator is troubleshooting a DMVPN setup between the hub and the spoke.

Which action should the administrator take before troubleshooting the IPsec configuration?

  1. A

    Verify the GRE tunnels.

  2. B

    Verify ISAKMP.

  3. C

    Verify NHRP.

  4. D

    Verify crypto maps.

Show answer and explanation

Correct answer: A

Question 5 Drag & drop

DRAG DROP

Drag and drop the functions from the left onto the Cisco SD-WAN components that perform them on the right.

Question diagram
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Correct answer diagram
Question 6 Single choice

Refer to the exhibit.

Which solution decreases the EIGRP convergence time?

  1. A

    Enable subsecond timers

  2. B

    Increase the hold time value

  3. C

    Increase the dead timer value

  4. D

    Enable stub routing on the spokes

Show answer and explanation

Correct answer: D

Question 7 Single choice

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

  1. A

    PIM SSM must run in the underlay.

  2. B

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

  3. C

    Rendezvous points must be used in a PIM SSM deployment.

  4. D

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

Show answer and explanation

Correct answer: D

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 8 Single choice

Which node performs the LISP Map-Server and Map-Resolver functions in the Cisco SD-Access network architecture?

  1. A

    control plane node

  2. B

    fabric edge node

  3. C

    border node

  4. D

    intermediate node

Show answer and explanation

Correct answer: A

Question 9 Single choice

A router running ISIS is showing high CPU and bandwidth utilization. An engineer discovers that the router is configured as L1/L2 and has L1 and L2 neighbors.

Which step optimizes the design to address the issue?

  1. A

    Make this router a DIS for each of the interfaces

  2. B

    Disable the default behavior of advertising the default route on the L1/L2 router

  3. C

    Configure the router to be either L1 or L2

  4. D

    Configure each interface as either L1 or L2 circuit type

Show answer and explanation

Correct answer: D

Question 10 Single choice

A customer requested that a guaranteed service line be enabled for a manufacturing business in different countries. On the customer side, the QoS-aware application is used to process large data chunks. The application cannot tolerate drops and latency should be as low as possible.

Which QoS model must an engineer employ to use the minimum required resources on the ISP network nodes?

  1. A

    Enable a flow-based QoS strategy with queuing elements.

  2. B

    Implement an end-to-end QoS strategy with SLA.

  3. C

    Implement a group-based QoS strategy with FECs enabled.

  4. D

    Configure a domain-based QoS strategy with PHB behavior.

Show answer and explanation

Correct answer: D