Cisco 300-420 Exam Dumps.zip | Hot 300-420 Questions

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Cisco 300-420 Exam Syllabus Topics:

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

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                                          100% Pass 2026 Cisco Valid 300-420: Designing Cisco Enterprise Networks Exam Dumps.zip

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                                          Cisco Designing Cisco Enterprise Networks Sample Questions (Q151-Q156):

                                          NEW QUESTION # 151
                                          An engineer is designing a multicast network for a financial application Most of the multicast sources also receive multicast traffic (many-to-many deployment model). To better routing tables, the design must not use source trees.
                                          Which multicast protocol satisfies these requirements?

                                          Answer: C

                                          Explanation:
                                          Bidir-PIM is designed to be used for many-to-many applications within individual PIM domains.
                                          Multicast groups in bidirectional PIM mode can scale to an arbitrary number of sources without incurring overhead due to the number of sources.


                                          NEW QUESTION # 152
                                          What is the purpose of a border node in a Cisco SD-Access fabric?

                                          Answer: C

                                          Explanation:
                                          The border node provides connectivity between the SD-Access fabric and networks outside the fabric. In Cisco SD-Access, edge nodes connect endpoints to the fabric, intermediate nodes transport routed IP traffic through the underlay, control-plane nodes maintain endpoint location mappings, and border nodes connect the fabric to external Layer 3 domains such as the data center, WAN, internet edge, or shared services network. A border node may perform proxy tunnel router functions and can de-encapsulate fabric traffic that is destined outside the overlay, but its design purpose is external connectivity for the fabric site. Network virtualization is primarily delivered through virtual networks, VRF separation, LISP control-plane mappings, and VXLAN encapsulation. Expanding the network is too vague and does not identify a Cisco SD-Access role. Therefore, among the available options, the border node is the component used to connect the fabric to the required external network resources. Reference topics: Cisco SD-Access border node, external connectivity, fabric roles, LISP proxy tunnel router, VN-to-VRF mapping.


                                          NEW QUESTION # 153
                                          A customer plans to adopt distributed QoS in their enterprise WAN. The policy must allow for individual packet marking according to the type of treatment required and for forwarding based on hop-by-hop treatment locally defined on each device. Which technology must the customer select?

                                          Answer: C


                                          NEW QUESTION # 154
                                          An architect is designing a network that will utilize the spanning tree protocol to ensure a loop- free topology. The network will support an engineering environment where it is necessary for end users to connect their own network switches for testing purposes. Which feature should the architect include in the design to ensure the spanning tree topology is not affected by these rogue switches?

                                          Answer: D

                                          Explanation:
                                          https://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/10588-74.html


                                          NEW QUESTION # 155
                                          An engineer is upgrading a company's main site to include a connection to a second ISP. The company will receive full Internet routing tables from both ISPs via BGP. The engineer must ensure that the company does not become a transit autonomous system. Which solution should be included in this design?

                                          Answer: B

                                          Explanation:
                                          Section: WAN for Enterprise Networks


                                          NEW QUESTION # 156
                                          ......

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