Free PDF 400-007 - Cisco Certified Design Expert (CCDE) Written Exam–Efficient Best Vce

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Cisco 400-007 Exam Syllabus Topics:

SectionObjectives
End-to-End Enterprise Architecture Scenarios- Service integration
  • 1. Migration and transformation strategies
    • 2. Hybrid connectivity design
      - Large-scale enterprise design
      • 1. High availability and redundancy
        • 2. Scalability and resiliency trade-offs
          Routing and Path Control- Traffic engineering
          • 1. Policy-based routing considerations
            • 2. Path optimization techniques
              - Routing protocol design
              • 1. BGP policy and scalability
                • 2. OSPF / IS-IS architecture
                  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
                          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
                                  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- MPLS fundamentals
                                          • 1. Label switching architecture
                                            • 2. MPLS scalability design
                                              - VPN design
                                              • 1. Multi-site connectivity strategies
                                                • 2. L3VPN and L2VPN design models

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                                                  Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q312-Q317):

                                                  NEW QUESTION # 312
                                                  What are two descriptions of network optimization? (Choose two.)

                                                  Answer: D,E

                                                  Explanation:
                                                  * B (Proactive network management):Network optimization involves ongoing monitoring, trend analysis, and proactive maintenance to prevent issues before they impact performance.
                                                  * D (Network health maintenance):Optimization focuses on ensuring consistent network performance, reducing bottlenecks, and maintaining network integrity through regular health checks and adjustments.
                                                  Other options explained:
                                                  * A: High availability is a design goal but not optimization itself.
                                                  * C: Redesign suggests a major rearchitecture, not part of ongoing optimization.
                                                  * E: Requirement identification happens during initial design phases.


                                                  NEW QUESTION # 313
                                                  An organization that has an on-prem data center recently underwent expansion where 5000 employees were on-boarded. The organization now needs to upgrade its network security with an ability to perform DPI and filter content based on L4 to L7 data. The network team has decided to adapt a cloud-based security service as a quick solution.
                                                  Which solution fulfills the customer requirement?

                                                  Answer: D

                                                  Explanation:
                                                  A Secure Web Gateway (SWG) provides deep packet inspection (DPI) and content filtering across layers 4-7, blocking malicious or unauthorized traffic. Delivered as a PaaS solution, it allows quick deployment without on-premise hardware, meeting the scalability and security requirements of the expanded organization.


                                                  NEW QUESTION # 314
                                                  What is a characteristic of a secure cloud architecture model?

                                                  Answer: B


                                                  NEW QUESTION # 315
                                                  Which architecture does not require an explicit multicast signaling protocol, such as PIM or P2MP, to signal the multicast state hop-by-hop, but instead uses a link state protocol to advertise the multicast forwarding state?

                                                  Answer: C

                                                  Explanation:
                                                  * Bit Indexed Explicit Replication (BIER) eliminates the need for traditional multicast signaling protocols such as PIM.
                                                  * BIER uses IGP extensions (e.g., OSPF or ISIS) to advertise BIER forwarding state.
                                                  * The BIER header contains a bit-string indicating directly which receivers should receive the multicast packet, removing the need to build trees via signaling.
                                                  This design is emphasized in CCDE v3.1 as a significant advancement for efficient, scalable multicast in large modern service provider and enterprise networks.
                                                  Why other options are incorrect:
                                                  * A, B, D: These options are invalid or fictitious terms in multicast protocol standards.


                                                  NEW QUESTION # 316
                                                  The Layer 3 control plane steers traffic toward destinations. Which two techniques offer a more dynamic, flexible, controlled, and secure control plane design in service provider networks? (Choose two.)

                                                  Answer: A,C

                                                  Explanation:
                                                  * C (QoS policy propagation with BGP - QPPB):Allows QoS policies to be dynamically applied based on BGP routing information, integrating policy control into routing decisions.
                                                  * D (Remote black-holing trigger):Enables dynamic mitigation of attacks (e.g., DDoS) by injecting blackhole routes through BGP to selectively drop malicious traffic upstream.
                                                  Other options explained:
                                                  * A/B/E: Static policy mechanisms that lack dynamic flexibility and responsiveness in modern service provider designs.


                                                  NEW QUESTION # 317
                                                  ......

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