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Cisco 400-007 Exam Syllabus Topics:

SectionObjectives
Topic 1: Infrastructure Design (Layer 2 / Layer 3)- Layer 3 design
  • 1. IGP selection and design
    • 2. IP addressing and summarization
      - Layer 2 technologies
      • 1. Spanning Tree design considerations
        • 2. Ethernet scaling and segmentation
          Topic 2: End-to-End Enterprise Architecture Scenarios- Large-scale enterprise design
          • 1. High availability and redundancy
            • 2. Scalability and resiliency trade-offs
              - Service integration
              • 1. Hybrid connectivity design
                • 2. Migration and transformation strategies
                  Topic 3: Multicast and Advanced Services- Multicast design
                  • 1. Multicast distribution models
                    • 2. PIM architecture and scaling
                      - Network services
                      • 1. Security integration in design
                        • 2. QoS design principles
                          Topic 4: Routing and Path Control- Routing protocol design
                          • 1. OSPF / IS-IS architecture
                            • 2. BGP policy and scalability
                              - Traffic engineering
                              • 1. Path optimization techniques
                                • 2. Policy-based routing considerations
                                  Topic 5: MPLS and VPN Architectures- MPLS fundamentals
                                  • 1. Label switching architecture
                                    • 2. MPLS scalability design
                                      - VPN design
                                      • 1. L3VPN and L2VPN design models
                                        • 2. Multi-site connectivity strategies
                                          Topic 6: Network Design Methodology and Principles- Requirements gathering and analysis
                                          • 1. Stakeholder requirements mapping
                                            • 2. Business and technical constraints
                                              - Design lifecycle and methodology
                                              • 1. Design phases and validation approaches
                                                • 2. Trade-off analysis techniques

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                                                  Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q237-Q242):

                                                  NEW QUESTION # 237
                                                  Drag t he components that are part of the CIA triad to the correct target on the right. Not all components are used.

                                                  Answer:

                                                  Explanation:


                                                  NEW QUESTION # 238
                                                  QUESTION 69 Refer to the exhibit. AJI links are P2P Layer 3. A high availability application is synchronizing data between host A and host B. To increase chance of delivery the same data is sent twice from host A on two different NICs toward the two NICs on host B.

                                                  Which solution must be deployed in the network to ensure that any failure in the network does not trigger data loss on host B?

                                                  Answer: B


                                                  NEW QUESTION # 239
                                                  Which Interconnectivity method offers the fastest convergence in the event of a unidirectional issue between three Layer 3 switches connected together with routed links in the same rack in a data center?

                                                  Answer: C

                                                  Explanation:
                                                  BFD (Bidirectional Forwarding Detection) provides sub-second failure detection at the control plane level, making it the fastest convergence mechanism for Layer 3 routing protocols.
                                                  Fiber Ethernet typically offers higher reliability and lower latency than copper.
                                                  When combined, Fiber with BFD provides the most robust and quickest convergence for unidirectional failures in a routed data center environment.
                                                  Why other options are incorrect:
                                                  A and B: Copper adds more physical susceptibility to errors.
                                                  B and D: UDLD is a Layer 2 unidirectional detection mechanism, not optimized for Layer 3 convergence.
                                                  -


                                                  NEW QUESTION # 240
                                                  Which statement about hot-potato routing architecture design is true?

                                                  Answer: D


                                                  NEW QUESTION # 241
                                                  (Choose two)

                                                  Answer: A,C

                                                  Explanation:
                                                  #Explanation:
                                                  * B: Signature-based systems cannot inspect encrypted payloads effectively, whereas NBAD relies on traffic behavior.
                                                  * E: NBAD identifies deviations from known good behavior, allowing detection of previously unknown (zero-day) threats.
                                                  Incorrect Options:
                                                  * A, C, D: These are often more accurately detected using signature-based approaches where known


                                                  NEW QUESTION # 242
                                                  ......

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