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Cisco 300-420 Exam Syllabus Topics:

Section	Objectives
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
Network Automation and Programmability	- API-driven network automation concepts - Controller-based networking design
WAN and Edge Connectivity Design	- Traditional WAN and internet edge design - SD-WAN architecture and design considerations
Network Services Design	- Routing protocols design (OSPF, EIGRP, BGP) - Multicast and QoS design considerations
Enterprise Network Design Principles	- Design methodologies and best practices - Scalability and high availability design

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Cisco Designing Cisco Enterprise Networks Sample Questions (Q152-Q157):

NEW QUESTION # 152
Refer to the exhibit.

An engineer must optimize the traffic flow of the network. Which change provides a more efficient design between the access and the distribution layer?

A. Change the link between distribution switch A and distribution switch B to be a routed link
B. Add a link between access switch A and access switch B
C. Create an EtherChannel link between distribution switch A and distribution switch B
D. Reconfigure the distribution switch A to become the HSRP Active

Answer: D

NEW QUESTION # 153

Refer to the exhibit. A network engineer must design a BGP solution based on:
* The route reflector must have one or more direct physical connections to the core routers (R3 and R4).
* The route reflector must have full redundancy and avoid a single point of failure.
* R2 to R1 link utilization is 90%. and the remaining links are less than 50% utilized.
Which two solutions must the design Include? (Choose two.)

A. Configure R4 to be a client of R1 and R3.
B. Configure R2 to be a client of R1 and R4.
C. Configure R1 to be a client of R2 and R4.
D. Configure R5 to be a client of R3 and R4.
E. Configure R3 to be a client of R2 and R4.

Answer: B,D

NEW QUESTION # 154
In a Cisco SD-Access fabric, which node facilities connectivity between the fabric and networks external to the fabric?

A. edge
B. intermediate
C. control plane
D. border

Answer: D

NEW QUESTION # 155
Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails. Which solution should the architect include in the design?

A. Reduce the default EIGRP hello interval and hold time.
B. Summarize the access layer networks from each access layer switch toward the aggregation layer.
C. Run BFD on the inter links between EIGRP neighbors.
D. Summarize the access layer networks from the aggregation layer toward the core layer.

Answer: C

NEW QUESTION # 156
What is the purpose of service routes in OMP updates?

A. define the remote management Information
B. indicate services that are enabled for service insertion
C. describe underlay transport Information
D. specify routes toward a centralized orchestration plane

Answer: B

Explanation:
Service routes in OMP updates identify services that are available for centralized service insertion. In Cisco Catalyst SD-WAN, OMP does more than advertise ordinary VPN prefixes. It also carries TLOC routes, which describe transport locators, and service routes, which allow the fabric to steer traffic toward network services such as firewalls, intrusion prevention systems, or other centralized service nodes. This is how the SD-WAN control plane distributes enough information for WAN Edge routers to make policy-driven forwarding decisions without requiring each device to learn service attachment through a separate routing protocol. A service route is not used to describe the underlay transport itself, because that function is handled by TLOC information. It is also not a route to the orchestration plane or a remote management definition. The design value is that service insertion can be centrally advertised and controlled through OMP, then applied consistently through SD-WAN policy. Reference topics: Cisco SD-WAN OMP, service routes, TLOC routes, service insertion, centralized data policy.

NEW QUESTION # 157
......

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