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Cisco 400-007 Exam Syllabus Topics:

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

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                                                  Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q83-Q88):

                                                  NEW QUESTION # 83
                                                  Software-defined networking architecture is used for cost-effective, adaptable, and easily manageable applications. In which two software-defined networks is SDN commonly used? (Choose two.)

                                                  Answer: C,D


                                                  NEW QUESTION # 84
                                                  A banking customer determines that it is operating POS and POI terminals that are noncompliant with PCI DSS requirements, as it is running TLSv1.0. The customer plans to migrate the terminals to TLSv1.2. What are two requirements to complete the migration? (Choose two.)

                                                  Answer: C,E

                                                  Explanation:
                                                  B (Strong cryptography for cardholder data):PCI DSS requires strong cryptographic protocols (e.g. TLS 1.2 or higher) to protect sensitive data during processing and storage.
                                                  C (Strong encryption for transmission):Data-in-transit across public or untrusted networks must be encrypted using strong protocols to comply with PCI DSS.
                                                  Other options explained:
                                                  A/D/E: These are general security best practices but not directly tied to TLS upgrade compliance for cardholder data under PCI DSS.


                                                  NEW QUESTION # 85
                                                  Setting a specific goal for throughput based on per-second data rates between end hosts does not identify the requirements for specific applications When specifying throughput goals for applications, it is important to understand the throughput requirements for each application Which two factors that can constrain application layer throughput? (Choose two.)

                                                  Answer: A,E


                                                  NEW QUESTION # 86
                                                  Which effect of using ingress filtering to prevent spoofed addresses on a network design is true?

                                                  Answer: A

                                                  Explanation:
                                                  Ingress filtering (also known as uRPF or source address verification) prevents packets with spoofed source addresses from entering the network. By validating that incoming packets have legitimate source addresses (based on routing tables or prefix lists), ingress filtering directly blocks many spoofed DDoS attacks, which often rely on forged source IP addresses.
                                                  This principle is foundational in network security design per CCDE v3.1:
                                                  * Stops source-spoofed attacks before they enter.
                                                  * Protects critical infrastructure from volumetric and reflection/amplification attacks.
                                                  * Forms part of secure edge design best practices.
                                                  Why other options are incorrect:
                                                  * A: DSCP remarking relates to traffic classification, not spoof prevention.
                                                  * C: Bogon classification isn't the main function of ingress filtering.
                                                  * D: RFC 1918 filtering is a special policy but not the core function of ingress filtering.
                                                  -


                                                  NEW QUESTION # 87
                                                  IPFIX data collection via standalone IPFIX probes is an alternative to flow collection from routers and switches.
                                                  Which use case is suitable for using IPFIX probes?

                                                  Answer: B


                                                  NEW QUESTION # 88
                                                  ......

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