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Cisco 300-640 Exam Syllabus Topics:

SectionObjectives
Topic 1: Data Center Networking for AI Workloads- Cisco Data Center networking technologies
  • 1. Cisco ACI integration concepts
    • 2. Cisco Nexus platform concepts
      - High-performance fabric design
      • 1. Leaf-spine architecture in AI environments
        • 2. Low-latency switching and routing considerations
          Topic 2: Data Center AI Infrastructure Fundamentals- AI/ML workload requirements in data centers
          • 1. Data pipeline and workload characteristics
            • 2. Compute, GPU, and acceleration concepts
              Topic 3: Security and Governance in AI Data Centers- Infrastructure security
              • 1. Network segmentation and policy enforcement
                • 2. Secure access to AI workloads
                  Topic 4: Compute and Storage for AI Infrastructure- Compute architecture
                  • 1. GPU-based compute nodes
                    • 2. HPC-style scaling considerations
                      - Storage systems
                      • 1. Distributed storage concepts
                        • 2. High-throughput storage for AI training data
                          Topic 5: AI Infrastructure Deployment and Operations- Operations and lifecycle management
                          • 1. Performance tuning and optimization
                            • 2. Monitoring and observability
                              - Deployment models
                              • 1. On-premises AI clusters
                                • 2. Hybrid AI infrastructure integration

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                                  Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions (Q73-Q78):

                                  NEW QUESTION # 73
                                  A Cisco Nexus switch experiences head-of-line blocking in an RDMA environment. Which mechanism is most effective in reducing this condition?

                                  Answer: A

                                  Explanation:
                                  Virtual output queuing (VOQ) prevents packets destined for congested outputs from blocking unrelated traffic flows. This is valuable in AI infrastructures where high-bandwidth GPU traffic can overwhelm buffers. WRED manages congestion probabilistically but does not eliminate head-of- line blocking. PortFast and NAT overload are unrelated features.


                                  NEW QUESTION # 74
                                  An administrator configures VXLAN EVPN in a Cisco AI data center fabric. The requirement is to provide Layer 2 adjacency across multiple leaf switches while maintaining scalable control-plane learning. Which protocol fulfills this function?

                                  Answer: D


                                  NEW QUESTION # 75
                                  A company is building a network fabric for an AI training cluster that will train large language models. The cluster includes 256 GPUs distributed across 32 servers. Security requirements mandate isolation between different training projects and allowing shared access to a central storage system. Which approach provides the required security isolation and maintains optimal performance for GPU-to-GPU communication?

                                  Answer: C

                                  Explanation:
                                  VXLAN provides scalable network segmentation by assigning separate VNIs to different training projects, preserving isolation without building separate physical fabrics. Group Policy Option adds policy-based control within the VXLAN overlay, allowing controlled shared access to central storage while maintaining high-performance GPU-to-GPU communication across the AI training fabric.


                                  NEW QUESTION # 76
                                  An engineer must configure dynamic load balancing (DLB) on a Cisco Nexus 9000 Series Switch AI fabric using a CLI. Which configuration must be implemented for only the odd-numbered interfaces?

                                  Answer: C

                                  Explanation:
                                  Dynamic load balancing is enabled on the selected Cisco Nexus 9000 interfaces by applying the interface-level dlb-interface command. For this deployment requirement, the command is applied only to the odd-numbered interfaces that participate in the DLB configuration.


                                  NEW QUESTION # 77
                                  A data center facility experienced a power outage, and the UCS X-Series servers did not restart automatically when power is restored. The configuration must be updated to prioritize these servers to boot as soon as possible to resume their work. Which set of power policy configurations must be used to meet these requirements?

                                  Answer: A

                                  Explanation:
                                  The servers must be configured to power back on automatically after power is restored, so the restore behavior should be set to always power on. Setting the power priority to high ensures these UCS X-Series servers receive priority during power recovery, allowing them to resume workloads as quickly as possible.


                                  NEW QUESTION # 78
                                  ......

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