400-007 Tests - 400-007 Ausbildungsressourcen

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Cisco 400-007 Exam Syllabus Topics:

SectionObjectives
Topic 1: 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. Business and technical constraints
        • 2. Stakeholder requirements mapping
          Topic 2: 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 3: 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 4: 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
                                  Topic 5: 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 6: 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

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                                                  400-007 Ausbildungsressourcen, 400-007 PDF

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                                                  Cisco Certified Design Expert (CCDE) Written Exam 400-007 Prüfungsfragen mit Lösungen (Q393-Q398):

                                                  393. Frage
                                                  A customer migrates from a traditional Layer 2 data center network into a new SDN-based spine-and-leaf VXLAN EVPN data center within the same location. The networks are joined to enable host migration at Layer 2. What is the final migration step after hosts have physically migrated to have traffic flowing through the new network without changing any host configuration?

                                                  Antwort: A

                                                  Begründung:
                                                  In data center migration scenarios, when legacy and VXLAN EVPN networks are connected for host mobility, a critical step is to ensure a seamless Layer 3 gateway handoff. This is typically achieved using VRRP (or HSRP) where both the old and new gateways share the same virtual IP.
                                                  The final step involves:
                                                  * Increasing the VRRP priority on the new VXLAN-enabled infrastructure to make it the active default gateway.
                                                  * Ensuring that hosts retain their original default gateway (no reconfiguration required).
                                                  * Only after the new gateway is active, the legacy SVIs can be gracefully shut down.
                                                  This method ensures no packet loss or disruption to host connectivity during or after migration.
                                                  It aligns with CCDE v3.1 under the "Network Architecture Principles" domain, particularly for data center transformation, operational consistency, and seamless L2-L3 handoff design patterns.


                                                  394. Frage
                                                  Which technique facilitates analytics and knowledge discovery in big data systems to recognize hidden and complex patterns?

                                                  Antwort: D


                                                  395. Frage
                                                  You are designing a network running both IPv4 and IPv6 to deploy QoS. Which consideration is correct about the QoS for IPv4 and IPv6?

                                                  Antwort: A

                                                  Begründung:
                                                  QoS queuing mechanisms such as LLQ (Low Latency Queuing), PQ (Priority Queuing), and CQ (Custom Queuing) operate at the interface level and are protocol-independent. Both IPv4 and IPv6 packets can be classified, queued, and scheduled using these mechanisms.
                                                  Why other options are incorrect:
                                                  * B: Modern platforms support classification for IPv6 with hardware-based CEF.
                                                  * C: Separate class-maps are typically required for IPv4 and IPv6.
                                                  * D: The same queuing/congestion mechanisms apply to both IPv4 and IPv6.
                                                  -


                                                  396. Frage
                                                  Refer to the exhibit.

                                                  Your company designed a network to allow server VLANs to span all access switches in a data center In the design, Layer 3 VLAN interfaces and HSRP are configured on the aggregation switches Which two features improve STP stability within the network design? (Choose two.)

                                                  Antwort: A,D


                                                  397. Frage
                                                  A key to maintaining a highly available network is building in the appropriate redundancy to protect against failure. This redundancy is carefully balanced with the inherent complexity of redundant systems. Which design consideration is relevant for enterprise WAN use cases when it comes to resiliency?

                                                  Antwort: B

                                                  Begründung:
                                                  * A (Design expecting outages and attacks):In WAN design, resiliency requires assuming that failures and attacks will occur. This drives the use of redundancy, diverse paths, and proactive failure mitigation techniques.
                                                  Other options explained:
                                                  * B/C/D: While important, these focus on operational efficiency rather than core resiliency principles.


                                                  398. Frage
                                                  ......

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                                                  400-007 Ausbildungsressourcen: https://www.zertpruefung.de/400-007_exam.html

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