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Cisco 300-420 Exam Syllabus Topics:

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

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Cisco Designing Cisco Enterprise Networks Sample Questions (Q292-Q297):

NEW QUESTION # 292
Refer to the exhibit.

An architect must design an IPv6 migration solution for an enterprise customer to support these requirements:
* Clients will transition to the new IPv6 network, which provides NAT64 and IPv6 DNS resolution services, using the same DNS name that points to the IPv4 address.
* The service provider will create a client-facing IPv6 interface with a new IPv6 virtual address that points to the same IPv4 DNS server.
* The service provider will support clients that use global IPv6 addresses and encapsulate IPv4 packets into IPv6 tunnels.
Which two migration solutions must the architect choose? (Choose two.)

A. Use dual-stack lite from the devices to the core MPLS network.
B. Use IPv6 tunneling from the devices to the core MPLS network.
C. Use NAT44/64 from the MPLS network to the IGR.
D. Use dual-stack lite from the MPLS network to the IGR.
E. Use NAT44/64 from the devices to the core MPLS network.

Answer: A,C

NEW QUESTION # 293

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?

A. IntServ with DSCP
B. Diffserv with RSVP
C. Diffserv with DSCP
D. IntServ with RSVP

Answer: D

NEW QUESTION # 294
Which topology within a network underlay eliminates the need for first hop redundancy protocols while improving fault tolerance, increasing resiliency, and simplifying the network?

A. Layer 2 topology
B. routed access topology
C. logical fabric topology
D. virtualized topology

Answer: D

NEW QUESTION # 295
An architect is designing a network solution for a customer The network is IPv6-only with 1000 hosts. The design must provide external access to up to 10 concurrent IPv6 hosts to allow communication with legacy IPv4 devices on an adjacent network. The customer set aside 10 IPv4 addresses to allow for one-to-one communication between hosts. Which solution must the architect select?

A. static NAT-PT
B. dynamic NPTv6
C. dynamic NAT-PT
D. stateful NAT64

Answer: D

NEW QUESTION # 296
What is the purpose of the RPF check in multicast routing?

A. to ensure that multicast packets are forwarded if they arrived on the interface used to route traffic back to the source address
B. to ensure that multicast packets are dropped if they arrived on the interface used to route traffic to the destination address
C. to ensure that multicast packets are dropped if they arrived on the interface used to route traffic back to the source address
D. to ensure that multicast packets are forwarded if they arrived on the interface used to route traffic to the destination address
E. to ensure that multicast packets, no matter the interface they arrived on, are forwarded out all interfaces

Answer: A

NEW QUESTION # 297
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