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Cisco 300-420 Exam Syllabus Topics:

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

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                                          Cisco Designing Cisco Enterprise Networks Sample Questions (Q114-Q119):

                                          NEW QUESTION # 114
                                          Drag and drop the characteristics from the left onto the YANG modules they describe on the right. Not all options are used.

                                          Answer:

                                          Explanation:


                                          NEW QUESTION # 115
                                          Which option will help build your customers platform during the discovery phase?

                                          Answer: E

                                          Explanation:
                                          A POV (Point of View) report is typically created during the discovery phase of a project.


                                          NEW QUESTION # 116

                                          Refer to the exhibit. An architect is designing a network that requires route redistribution. The design must prevent route feedback and the creation of routing loops. The OSPF domain is using default metrics, and the IS-IS domain is using narrow metrics. Which solution must the architect select?

                                          Answer: B

                                          Explanation:
                                          Route tagging with a route map is the correct redistribution loop-prevention method. In a design with mutual redistribution between OSPF and IS-IS, a route learned from one domain can be redistributed into the other domain and then fed back into the original domain at another redistribution point. This creates route feedback, suboptimal routing, or loops. Cisco routing design commonly prevents this by tagging routes at the point of redistribution and then filtering or denying routes with that tag when they are seen again at another redistribution boundary. A route map can set the tag during redistribution and match the tag on the reverse redistribution direction. Changing administrative distance may influence local route selection, but it does not reliably prevent feedback throughout the network. Stub areas reduce external LSA scope in OSPF, but they do not solve a multipoint redistribution loop between OSPF and IS-IS. Prefix filtering can work, but tagging scales better and preserves route identity across redistribution points. Reference topics: route redistribution, route tagging, route maps, OSPF, IS-IS, loop prevention.


                                          NEW QUESTION # 117
                                          Which feature is used to optimize WAN bandwidth of IGMP network traffic among WAN Edge routers in the same VPN?

                                          Answer: D


                                          NEW QUESTION # 118
                                          What is the purpose of the fabric control plane in a Cisco SD-Access architecture?

                                          Answer: A


                                          NEW QUESTION # 119
                                          ......

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