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Cisco 300-420 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Advanced Enterprise Campus Networks25%- Wireless integration
- Layer 3 campus design
  • 1. Routing in campus infrastructure
    • 2. Virtualization and segmentation
      - Layer 2 campus design
      • 1. Hierarchical architecture
        • 2. VLAN and trunking design
          • 3. Spanning Tree Protocol optimization
            Topic 2: Advanced Addressing and Routing Solutions25%- Routing protocol design
            • 1. EIGRP design
              • 2. IS-IS design
                • 3. Route redistribution and filtering
                  • 4. OSPF design
                    - IPv4 and IPv6 addressing design
                    • 1. Route summarization and aggregation
                      • 2. Structured addressing plans
                        Topic 3: WAN for Enterprise Networks20%- WAN resiliency and high availability
                        - WAN connectivity options
                        • 1. SD-WAN architecture and design
                          • 2. MPLS, Metro Ethernet, 4G/5G
                            - VPN design
                            • 1. Site-to-site VPN
                              • 2. DMVPN, L2VPN, L3VPN
                                Topic 4: Security Services10%- Security architecture design
                                • 1. Threat defense integration
                                  • 2. Network segmentation
                                    - Secure connectivity
                                    Topic 5: Network Services15%- Quality of Service (QoS)
                                    • 1. Policing, shaping, congestion management
                                      • 2. Classification and marking
                                        - Multicast design
                                        - IP services
                                        • 1. DHCP, DNS, NAT
                                          Topic 6: Software-Defined Access (SDA)5%- Control plane and data plane design
                                          - Fabric design and deployment
                                          - SD-Access architecture

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                                          Cisco Designing Cisco Enterprise Networks Sample Questions (Q443-Q448):

                                          NEW QUESTION # 443

                                          Refer to the exhibit. An architect must design a solution to connect bank site A with bank site B and support:
                                          * network operation center monitoring end-to-end L3VPN and L2VPN traffic
                                          * company adding thousands of routes in the next two years
                                          Which two BGP solutions must the design include? (Choose two.)

                                          Answer: B,C


                                          NEW QUESTION # 444
                                          Which two techniques improve the application experience in a Cisco SD-WAN design? (Choose two.)

                                          Answer: A,D

                                          Explanation:
                                          Forward error correction and quality of service are the two listed techniques that directly improve application experience in a Cisco SD-WAN design. Forward error correction protects selected application traffic by sending recovery information so packet loss can be corrected without waiting for retransmission. That is especially useful for real-time voice and video traffic, where retransmission delay can degrade quality. QoS improves application treatment by classifying, marking, queuing, shaping, and prioritizing traffic according to business intent and application sensitivity. Cisco SD-WAN designs commonly combine application-aware routing, QoS, and loss-mitigation features to keep critical traffic on the best path and preserve service quality during congestion or impairment. A stateful firewall, AMP, and Cisco Umbrella improve security posture, but they do not primarily improve application experience in the forwarding-quality sense asked by the question.
                                          They may protect applications, but they do not directly address loss, delay, jitter, and congestion treatment.
                                          Therefore, FEC and QoS are the best answers. Reference topics: Cisco SD-WAN application experience, FEC, QoS, loss mitigation, real-time traffic handling.


                                          NEW QUESTION # 445
                                          How do IETF. OpenConfig and Cisco nativo YANG models differ when used to configuro the same feature on an infrastructure device?

                                          Answer: B


                                          NEW QUESTION # 446
                                          An engineer uses Postman and YANG to configure a router with:
                                          * OSPF process ID 200
                                          * network 172.16.10.128/26 enabled for Area 0
                                          Which get-config reply verifies that the model set was designed correctly?

                                          Answer: D


                                          NEW QUESTION # 447
                                          An engineer is working for a large cable TV provider that requires multiple sources streaming video on different channels using multicast with no rendezvous point. Which multicast protocol meets these requirements?

                                          Answer: A

                                          Explanation:
                                          PIM-SSM is suitable for when well-known sources exist within the local PIM domain and for broadcast applications. Also, PIM-SSM eliminates the RPs and shared trees


                                          NEW QUESTION # 448
                                          ......

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