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Cisco 300-420 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Advanced Addressing and Routing Solutions	25%	- IPv4 and IPv6 addressing design 1. Structured addressing plans 2. Route summarization and aggregation - Routing protocol design 1. IS-IS design 2. OSPF design 3. EIGRP design 4. Route redistribution and filtering
Topic 2: Software-Defined Access (SDA)	5%	- Control plane and data plane design - Fabric design and deployment - SD-Access architecture
Topic 3: Security Services	10%	- Secure connectivity - Security architecture design 1. Network segmentation 2. Threat defense integration
Topic 4: Network Services	15%	- Quality of Service (QoS) 1. Policing, shaping, congestion management 2. Classification and marking - IP services 1. DHCP, DNS, NAT - Multicast design
Topic 5: WAN for Enterprise Networks	20%	- WAN resiliency and high availability - WAN connectivity options 1. MPLS, Metro Ethernet, 4G/5G 2. SD-WAN architecture and design - VPN design 1. DMVPN, L2VPN, L3VPN 2. Site-to-site VPN
Topic 6: Advanced Enterprise Campus Networks	25%	- Wireless integration - Layer 2 campus design 1. Spanning Tree Protocol optimization 2. VLAN and trunking design 3. Hierarchical architecture - Layer 3 campus design 1. Virtualization and segmentation 2. Routing in campus infrastructure

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Cisco Designing Cisco Enterprise Networks Sample Questions (Q422-Q427):

NEW QUESTION # 422
An engineer must design a QoS solution for a customer that is connected to an ISP over a 1Gbps link with a 100Mbps CIR. The ISP aggressively drops all traffic received over which is causing numerous TCP retransmissions. The customer is not using any RTP applications but wants to maximize bandwidth usage up to the CIR. Which QoS solution engineer choose?

A. Policing
B. Traffic shaping
C. Policer with markdown
D. Queuing

Answer: A

Explanation:
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-policing/19645-policevsshape.html

NEW QUESTION # 423
Drag and drop the types of WAN connectivity from the left onto the connectivity use cases on the right.

Answer:

Explanation:

NEW QUESTION # 424
Refer to the exhibit. Where must an architect plan for route summarization for the topology?

A. from the aggregation toward the core and the aggregation toward the access
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

Answer: A

NEW QUESTION # 425
Refer to the exhibit.

A network engineer is designing a network for AS100. The design should ensure that all traffic enters AS100 via link 1 unless there is a network failure. In the event of a failure, link 2 should function as the path for incoming traffic. Which solution should the design include?

A. Use AS-Path prepending on R3.
B. Modify the next-hop attribute on R3.
C. Use AS-Path prepending on R4.
D. Modify the next-hop attribute on R4.

Answer: C

NEW QUESTION # 426
Drag and drop the steps WAN Edge performs when on-boarded into the Cisco SD-WAN overlay from the left into the order they are completed on the right.

Answer:

Explanation:

Explanation
Table Description automatically generated with low confidence

NEW QUESTION # 427
......

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