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300-420 Exam Dumps - Cisco CCNP Enterprise Questions and Answers

Question # 24

Refer to the exhibit.

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

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Question # 25

When a first hop redundancy solution is designed, which protocol ensures that load balancing occurs over multiple routers using a single virtual IP address and multiple virtual MAC addresses?

Options:

A.

GLBP

B.

IRDP

C.

VRRP

D.

HSRP

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Question # 26

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?

Options:

A.

AFT for public web presence

B.

host-initiated tunnels

C.

dual stack

D.

site-to-site IPv6 over IPv4 tunnels

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Question # 27

Which two statements about VRRP advertisements are true? (Choose two.)

Options:

A.

    They are sent from the master router and standby routers.

B.

    They include VRRP timer information.

C.

    They are sent only from the master router.

D.

    They include priority information.

E.

    They are sent every three seconds by default.

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Question # 28

Refer to the exhibit.

An engineer is designing a routing solution for a customer. The design must ensure that a failure of network

10.1.0.0/24, 10.1.2.0/24, 10.2.1.0/24, or 10.2.3.0/24 does not impact the core. It also requires fast convergence

time during any link failover in the core or access networks. Which solution must the engineer select?

Options:

A.

Add aggregation layer between core and access networks.

B.

Enable graceful restart on routers A and C.

C.

Enable FRR for the connected networks of routers A and C.

D.

Enable summarization on routers A and C.

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Question # 29

Which feature is used to optimize WAN bandwidth of IGMP network traffic among WAN Edge routers in the

same VPN?

Options:

A.

IGMPv2

B.

multicast RP

C.

multicast-replicator

D.

multicast service routes

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Question # 30

Which design consideration must be made when using IPv6 overlay tunnels?

Options:

A.

Overlay tunnels that connect isolated IPv6 networks can be considered a final IPv6 network architecture.

B.

Overlay tunnels should only be considered as a transition technique toward a permanent solution.

C.

Overlay tunnels can be configured only between border devices and require only the IPv6 protocol stack.

D.

Overlay tunneling encapsulates IPv4 packets in IPv6 packets for delivery across an IPv6 infrastructure.

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Question # 31

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.)

Options:

A.

Implement Enhanced Object Tracking on router R1

B.

use a floating static route

C.

Implement IP SLA on router R1

D.

Implement PBR on router R1

E.

use IP source routing

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Question # 32

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?

Options:

A.

Make this router a DIS for each of the interfaces

B.

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

C.

Configure the router to be either L1 or L2

D.

Configure each interface as either L1 or L2 circuit type

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Question # 33

Which function do reverse path forwarding mechanisms perform in a multicast deployment?

Options:

A.

They notify the upstream routerof multicast traffic.

B.

They send PIM prune message toward multicast sources.

C.

They eliminate overlapping multicast addresses

D.

They prevent loops and duplicate packets.

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Exam Code: 300-420
Exam Name: Designing Cisco Enterprise Networks (ENSLD)
Last Update: Feb 23, 2025
Questions: 242
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