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Cisco 400-007 Exam Syllabus Topics:

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

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                                                  Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q37-Q42):

                                                  NEW QUESTION # 37
                                                  An enterprise wants to provide low-cost delivery of network systems that can be scaled on business demand, followed by an initiative to reduce capital expenses for new IT equipment Which technology meets these goals?

                                                  Answer: C


                                                  NEW QUESTION # 38
                                                  In an OSPF network with routers connected together with Ethernet cabling, which topology typically takes the longest to converge?

                                                  Answer: A

                                                  Explanation:
                                                  In OSPF, a ring topology typically converges more slowly because:
                                                  * Link failures can create longer SPF recalculations as alternate paths are fewer.
                                                  * Only one alternate path usually exists for each link failure, extending the time needed for failure detection and SPF recalculation.
                                                  CCDE v3.1 stresses that designs like full mesh or triangulated topologies provide faster convergence due to multiple available alternate paths, which reduce SPF computation complexity.
                                                  Why other options are incorrect:
                                                  * A, D, E: These topologies provide multiple paths.
                                                  * B: Full mesh offers immediate redundancy for any failure.
                                                  -


                                                  NEW QUESTION # 39
                                                  Drag and drop the design use cases from the left onto the correct uRPF techniques used to prevent spoofing attacks Not all options are used.

                                                  Answer:

                                                  Explanation:


                                                  NEW QUESTION # 40
                                                  What is a country-specific requirement that data is subject to the laws of the country in which it is collected or processed and must remain within its borders?

                                                  Answer: A

                                                  Explanation:
                                                  Comprehensive and Detailed Explanation:
                                                  * A: Data sovereignty refers to legal and regulatory policies that require data to reside within a particular country and be subject to its laws. This impacts how cloud and hybrid architectures are designed and which regions can be used for storage or compute.
                                                  Other options:
                                                  * B: "Data rationality" is not a recognized regulatory or legal term.
                                                  * C: Data inheritance refers to metadata or permission models, not legal jurisdiction.
                                                  * D: Data replication is a technical process, not a legal requirement.


                                                  NEW QUESTION # 41
                                                  An IT service provider is upgrading network infrastructure to comply with PCI security standards. The network team finds that 802.1X and VPN authentication based on locally-significant certificates are not available on some legacy phones. Which workaround solution meets the requirement?

                                                  Answer: D

                                                  Explanation:
                                                  * B (Enable phone VPN authentication based on end-user username and password):When legacy devices don't support certificate-based authentication, fallback to username/password provides a temporary workaround while maintaining PCI compliance, assuming strong credentials and secure tunnels are used.
                                                  Other options explained:
                                                  * A: Immediate hardware replacement may not be feasible.
                                                  * C: TLS 1.0 fallback violates PCI standards, which prohibit deprecated protocols.
                                                  * D: Clear text authentication is non-compliant with PCI requirements.


                                                  NEW QUESTION # 42
                                                  ......

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