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Cisco Updated 300-420 Exam Questions and Answers by pia

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Cisco 300-420 Exam Overview :

Exam Name: Designing Cisco Enterprise Networks (ENSLD)
Exam Code: 300-420 Dumps
Vendor: Cisco Certification: CCNP Enterprise
Questions: 339 Q&A's Shared By: pia
Question 76

Questions 76

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?

Options:

A.

Increase the hello timers on both HSRP devices

B.

Use the preempt delay feature on the primary HSRP device.

C.

Use the preempt delay feature on the backup HSRP device

D.

Configure a higher mac-refresh interval on both HSRP devices

Discussion
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Question 77

Questions 77

Refer to the exhibit. An engineer must ensure that the QoS design guarantees bandwidth for the applications, and an application can request a particular type of service to support its delay requirements. Which solution must the engineer select?

Options:

A.

Diffserv with RSVP

B.

IntServ with RSVP

C.

Diffserv with DSCP

D.

IntServ with DSCP

Discussion
Question 78

Refer to the exhibit.

Questions 78

A network engineer must design a multicast solution based on:

* Many-to-many communications between the users and sources

* Support of up to 50 multicast sources

* Users that must register for steams

Which multicast solution must the engineer select?

Options:

A.

Any Source Multicast

B.

Bidirectional PIM

C.

Source-Specific Multicast

D.

Multicast VPN

Discussion
Question 79

Which design achieves SD-WAN control plane redundancy?

Options:

A.

Configuring BFD on the WAN Edge routers

B.

Using multiple instances of vManage in clusters

C.

Deploying using a virtual platform like UCS or CSP

D.

Managing the underlay network with OMP

Discussion
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