300-420최신시험100％시험패스인증덤프

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Cisco 300-420 Exam Syllabus Topics:

Section	Objectives
Enterprise Network Design Principles	- Scalability and high availability design - Design methodologies and best practices
WAN and Edge Connectivity Design	- SD-WAN architecture and design considerations - Traditional WAN and internet edge design
Network Automation and Programmability	- Controller-based networking design - API-driven network automation concepts
Network Services Design	- Multicast and QoS design considerations - Routing protocols design (OSPF, EIGRP, BGP)
Security Design in Enterprise Networks	- VPN and perimeter security architecture - Segmentation and access control design
Enterprise Campus Network Design	- Spine-leaf and hierarchical design models - Campus LAN architecture

>> 300-420최신시험 <<

300-420최신 업데이트버전 공부문제 - 300-420인기자격증 시험덤프공부

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최신 CCNP Enterprise 300-420 무료샘플문제 (Q69-Q74):

질문 # 69
A customer reports that each time a networking component fails, OSPF recalculates the backup path, with causes a short outage. Which solution must the customer implement to improve this situation?

A. BFD
B. LFA FRR
C. Incremental SPF
D. Aggressive OSPF timers

정답：B

설명：
OSPF Loop-Free Alternate (LFA) Fast Reroute (FRR) allows OSPF to quickly switch (within 50 ms) to a backup path when a primary path fails. Without LFA FRR, OSPF has to re-run SPF to find a new path when the primary path fails. With LFA FRR, OSPF pre-computes a backup path and installs the backup next hop in the forwarding table.
https://networklessons.com/cisco/ccie-routing-switching-written/ospf-loop-free-alternate-lfa-fast- reroute-frr

질문 # 70

Refer to the exhibit. A customer has two eBGP peerings from a single CE router toward two service providers. The customer has hired an architect to design a solution to ensure certain traffic enters the customer's network through interface g.g0/0. Which solution must the architect include in the design?

A. Advertise a lower MED value toward the less preferred service provider.
B. Set a higher local preference to the preferred service provider path.
C. Prepend additional AS on the AS path toward the preferred service provider.
D. Break aggregated routes into longer prefixes and advertise to the preferred service provider.

정답：D

질문 # 71
Which two LISP components are required in the Cisco SD-Access fabric control plane node? (Choose two.)

A. Engross Tunnel Router
B. ETR
C. Ingres Tunnel Router
D. Map-Resolver
E. Map-Server Proxy

정답：D,E

질문 # 72
An engineer working for a service provider with an employee ID: 4863:43:939 must design a solution to provide remote connectivity over the public internet. The design must:
* securely connect multiple remote sites to the central site
* provide redundant paths to the central site
* allow auto path selection based on failure and connection quality
* support IP multicast
* minimal configuration at remote sites
Which solution must the engineer choose?

A. full mesh OSPF with IPsec tunnels
B. MPLS provided service with BGP
C. full mesh ISIS with GRE tunnels and IPsec
D. dual DMVPN with EIGRP routing

정답：D

질문 # 73

Refer to the exhibit. A company architect proposed this network design as a part of the IPv6 migration strategy. What are two advantages of this design? Choose two.

A. It allows multiple independent networks to be built on top of a shared underlay.
B. It provides increased scalability without increasing forwarding overhead.
C. It enables the transport of protocols that are unsupported by the underlay.
D. It establishes an independent network that does not share fate with the underlay.
E. It permits any number of devices to join the overlay network seamlessly.

정답：A,C

설명：
The design is an IPv6 overlay carried across an existing underlay, so the correct advantages are that multiple independent logical networks can run over a shared underlay and that unsupported protocols can be transported across that underlay. Cisco describes overlay tunnels as encapsulating one protocol inside another so traffic can cross infrastructure that does not natively support the passenger protocol. For an IPv6 migration, this permits IPv6 connectivity across an IPv4-only transport while the intermediate network remains unchanged. The same overlay concept also allows separate logical networks to be created over common physical transport, which is a fundamental design principle in SD-Access, SD-WAN, GRE, and other overlay technologies. The design does not eliminate fate-sharing; if the underlay fails, the overlay fails. It also does not reduce forwarding overhead, because encapsulation adds header bytes and may affect MTU. The number of devices joining the overlay still depends on addressing, routing, tunnel scale, and control-plane design.
Reference topics: IPv6 overlay tunneling, shared underlay, encapsulation overhead, protocol transport, migration design.

질문 # 74
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2026 DumpTOP 최신 300-420 PDF 버전 시험 문제집과 300-420 시험 문제 및 답변 무료 공유: https://drive.google.com/open?id=1XrLcwggbIrUY6fDe38VyeJLhKs-maYzx