400-007試験の準備方法 |真実的な400-007試験関連赤本試験 |実用的なCisco Certified Design Expert (CCDE) Written Examサンプル問題集

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Cisco 400-007 Exam Syllabus Topics:

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

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                                                  Cisco Certified Design Expert (CCDE) Written Exam 認定 400-007 試験問題 (Q336-Q341):

                                                  質問 # 336
                                                  Which design consideration is valid when you contrast fabricPath and trill?

                                                  正解：D


                                                  質問 # 337
                                                  A network security team observes phishing attacks on a user machine from a remote location.
                                                  The organization has a policy of saving confidential data on two different systems using different types of authentication. What is the next step to control such events after the security team verifies all users in Zero Trust modeling?

                                                  正解：A

                                                  解説：

                                                  https://www.cisco.com/c/dam/global/en_ca/assets/pdfs/zero-trust-cisco-connect-vancouver-
                                                  2020.pdf


                                                  質問 # 338
                                                  The network designer needs to use GLOP IP addresses to make them unique within their ASN. Which multicast address range will be considered?

                                                  正解：A

                                                  解説：
                                                  * C: GLOP addressing is defined in RFC 2770, assigning a portion of the 233.0.0.0/8 range for each AS based on their 16-bit ASN. This allows each AS to use a /24 of globally unique multicast addresses without coordination from IANA.
                                                  Other options:
                                                  * A: 239.0.0.0/8 is the administratively scoped multicast address space.
                                                  * B: 224.0.0.0/24 is reserved for local link-scoped protocols (e.g., OSPF, RIP).
                                                  * D: 232.0.0.0/8 is the Source-Specific Multicast (SSM) range.


                                                  質問 # 339
                                                  A European government passport agency considers upgrading its IT systems to increase performance and workload flexibility in response to constantly changing requirements. The budget manager wants to reduce capital expenses and IT staff and must adopt the lowest-cost technology. Which technology choice is suitable?

                                                  正解：A


                                                  質問 # 340
                                                  Which two statements describe the functionality of OSPF packet-pacing timers? (Choose two.)

                                                  正解：D、E

                                                  解説：
                                                  OSPF uses pacing timers to control how quickly it sends LSAs to neighbors to prevent network flooding and CPU spikes:
                                                  * C. Retransmission-pacing timer: Controls spacing between retransmitted LSAs queued after a lost or unacknowledged transmission.
                                                  * E. Flood-pacing timer: Controls spacing between consecutive LSAs when flooding new information to peers.
                                                  These timers are critical in scaling OSPF in dense or unstable topologies and are key to tuning control plane convergence performance without destabilizing routers.


                                                  質問 # 341
                                                  ......

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