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Cisco 400-007 Exam Syllabus Topics:

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

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                                                  Cisco Certified Design Expert (CCDE) Written Exam Sample Questions (Q276-Q281):

                                                  NEW QUESTION # 276
                                                  Refer to the table.

                                                  A customer investigates connectivity options for a DCI between two production data centers. The solution must provide dual 10G connections between locations with no single points of failure for Day 1 operations. It must also include an option to scale for up to 20 resilient connections in the second year to accommodate isolated SAN over IP and isolated, dedicated replication IP circuits. All connectivity methods are duplex 10 Gbps. Which transport technology costs the least over two years, in the scenario?

                                                  Answer: A


                                                  NEW QUESTION # 277
                                                  One of the key components in an SDN-controlled network is the ability to have a piece of software that can manipulate the devices in the network and also provide the intelligent and predictable behavior that is expected. Which component provides this feature?

                                                  Answer: C

                                                  Explanation:
                                                  In Software Defined Networking (SDN), the controller is the central component that communicates with the data plane (network devices like switches and routers) to enforce policies and make decisions. The controller APIs allow applications to interact with the controller to define desired network behavior.
                                                  Controller APIs (also called northbound APIs) expose the controller's capabilities to external applications, allowing intelligent and programmable control over the network. This enables automation, orchestration, and policy-driven network management.


                                                  NEW QUESTION # 278
                                                  Company XYZ, a global content provider, owns data centers on different continents. Their data center design involves a standard three-layer design with a Layer 3-only core. HSRP is used as the FHRP. They require VLAN extension across access switches in all data centers, and they plan to purchase a Layer 2 interconnection between two of their data centers in Europe. In the absence of other business or technical constraints, which termination point is optimal for the layer
                                                  2 interconnection?

                                                  Answer: C


                                                  NEW QUESTION # 279
                                                  A network security team uses a purpose-built tool to actively monitor the campus network, applications, and user activity. The team also analyzes enterprise telemetry data from IPFIX data records that are received from devices in the campus network. Which action can be taken based on the augmented data?

                                                  Answer: D

                                                  Explanation:
                                                  * A (Faster detection and response):Telemetry like IPFIX enables real-time network visibility and anomaly detection, significantly improving Mean Time to Detect (MTTD) and Mean Time to Respond (MTTR).
                                                  Other options explained:
                                                  * B: IPFIX feeds data to incident response, but doesn't directly integrate plans.
                                                  * C: IPFIX improves detection but primarily reduces response time.
                                                  * D: Asset identification typically uses CMDB or inventory tools, not IPFIX alone.


                                                  NEW QUESTION # 280
                                                  Which action must be taken before new VoIP systems are implemented on a network to ensure that the network is ready to handle the traffic?

                                                  Answer: D


                                                  NEW QUESTION # 281
                                                  ......

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