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Cisco 300-640 Exam Syllabus Topics:

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

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                                  Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions (Q64-Q69):

                                  NEW QUESTION # 64
                                  Drag and Drop Question
                                  An engineer must configure vNIC templates for a UCS X-Series deployment. Drag and drop the policy types from the left onto the corresponding configuration settings on the right. Not all options are used.

                                  Answer:

                                  Explanation:


                                  NEW QUESTION # 65
                                  A network architect designs connectivity for a new Cisco AI POD operating in Intersight Managed Mode. To ensure high availability and aggregate bandwidth for external network traffic, a port channel must be established using multiple 100 GbE uplink ports on the fabric interconnects to connect to the upstream core switch infrastructure. Which specific policy, applied through the domain profile, must be modified to define and configure this port channel on the fabric interconnects for the desired uplink connectivity?

                                  Answer: C

                                  Explanation:
                                  In Cisco Intersight Managed Mode, fabric interconnect port roles and uplink port channels are defined in the port policy associated with the UCS domain profile. Modifying the port policy allows the engineer to configure multiple 100 GbE uplink ports as a port channel for aggregated bandwidth and high availability toward the upstream network.


                                  NEW QUESTION # 66
                                  A network engineer analyzes RoCEv2 traffic flows in an AI training cluster and notices that all RoCEv2 packets have the Don't Fragment bit set in the IP header. Why must RoCEv2 set the DF bit in all packets?

                                  Answer: A

                                  Explanation:
                                  RoCEv2 carries InfiniBand transport semantics over UDP/IP, and IP fragmentation would disrupt the expected packet sequencing and ordering behavior required by RDMA. Setting the Don't Fragment bit prevents intermediate devices from fragmenting RoCEv2 packets, preserving reliable RDMA transport behavior across the AI training fabric.


                                  NEW QUESTION # 67
                                  When considering a rail-only network design, when would adding spine switches make sense?

                                  Answer: D

                                  Explanation:
                                  In a rail-only design, each scalable unit provides optimized east-west GPU communication within that unit. Spine switches are added when the design must scale beyond a single scalable unit and support traffic between multiple scalable units while preserving predictable performance for larger AI training environments.


                                  NEW QUESTION # 68
                                  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

                                  Explanation:
                                  BGP EVPN provides scalable control-plane MAC and IP route advertisement for VXLAN fabrics.
                                  It eliminates excessive flooding associated with traditional Layer 2 networks and supports efficient multi-tenant AI infrastructures. STP only prevents loops, OSPF is a Layer 3 routing protocol, and HSRP provides gateway redundancy rather than overlay endpoint learning.


                                  NEW QUESTION # 69
                                  ......

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