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

Question # 74

A company plans to transition to IPv6. They will link their IPv4 addresses to the lowest significant bits of the new Ipv6 addresses. A network administrator with an employee id: 4264:42:116 is preparing a mapping schema for the new IPv6 addresses. Which address does the 172.16.10.0/24 network translate to?

Options:

A.

2001:db8:abcd::ac10:a00/120

B.

2001:db8:abcd:172:16:10::/96

C.

2001:db8:abcd:11d8:a00/120

D.

2001:db8:ac10:0a00::/64

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Question # 75

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 # 76

Refer to the exhibit.

A network engineer must improve the current IS-IS environment. The Catalyst switch is equipped with dual supervisors. Each time a stateful switchover occurs, the network experiences unnecessary route recomputation. Which solution addresses this issue if the upstream router does not understand graceful restart messaging?

Options:

A.

Enable IS-IS remote LFA FRR on both devices.

B.

Enable NSR on the switch.

C.

Enable NSF on the switch.

D.

Configure ISIS aggressive timers on both devices.

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Question # 77

Refer to the exhibit. A network engineer with an employee ID: 4384:99:754 must design a BGP solution based on these conditions:

    Traffic sessions occur between the branches and the data center.

    Branch B has limited resources to process routing updates.

    HQ must filter out all prefixes from branch A to R4.

Which outbound route filtering (ORF) solution must the engineer choose?

Options:

A.

Use a prefix list with the 192.168.10.0/24 subnet for ORF on R4.

B.

Use a prefix list with the 10.10.10.0/24 subnet for ORF on R2

C.

Use a prefix list with the 10.10.10.0/24 subnet for ORF on R5.

D.

Use a prefix list with the 192.168.10.0/24 subnet for ORF on R2.

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Question # 78

An engineer must design a management network that enables SSH, NTP, FTP, and SNMP over the production network. The design requires the management of routers and switches that exist across different networks. Which feature must the design include?

Options:

A.

Management Plane Protection

B.

dedicated management console connection per device

C.

terminal server

D.

dedicated management VRF connection per device

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Question # 79

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?

Options:

A.

BPDU Skew Detection

B.

BPDU guard

C.

loop guard

D.

root guard

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Question # 80

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

Options:

A.

normal

B.

stub

C.

NSSA

D.

totally stubby

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Question # 81

Refer to the exhibit. An architect is designing an ISIS network for a customer migrating from IPv4 to IPv6. The current network uses narrow metrics, and the IPv6 areas will increase to 10 within the next two years. Also, IPv6 traffic must not blackhole in IPv4 network during the migration. Which two solutions must the architect choose? (Choose two.)

Options:

A.

multi-topology enabled under address-family ipv6 on C1 and C2

B.

metric-style transition enabled on all routers

C.

multi-topology enabled under address-family ipv6 on E1 and E2

D.

metric-style transition enabled on C1 and C2

E.

metric-style transition enabled on E1 and E2

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Question # 82

Refer to the exhibit. Where must an architect plan for route summarization for the topology?

Options:

A.

from the core toward the aggregation and the access toward the aggregation

B.

from the core toward the aggregation and the aggregation toward the core

C.

from the aggregation toward the access and the access toward the aggregation

D.

from the aggregation toward the core and the aggregation toward the access

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Question # 83

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

Options:

A.

use multiple equal-cost links

B.

use an IGP

C.

use HSRP

D.

use R-PVSTP+

E.

use multiple unequal-cost links

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Exam Code: 300-420
Exam Name: Designing Cisco Enterprise Networks (ENSLD)
Last Update: Apr 4, 2025
Questions: 339
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