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Cisco 300-640 Exam Syllabus Topics:

Section	Weight	Objectives
AI Infrastructure Deployment	25%	- Network Switch Configuration - Cabling and Connectivity - Hardware Installation and Configuration - Storage Configuration for AI - GPU Server Configuration
AI Infrastructure Operations	20%	- Performance Optimization - Capacity Planning - Troubleshooting Common Issues - Monitoring and Management Tools
Cisco AI Infrastructure Architecture	30%	- Storage Architecture Considerations - Hyperconverged Infrastructure for AI - Cisco UCS AI Infrastructure Solutions - Network Architecture for AI Workloads
AI Infrastructure Security and Compliance	10%	- Compliance Considerations - Security Best Practices - Access Control and Authentication
AI Infrastructure Fundamentals	15%	- AI Workload Characteristics - AI Infrastructure Requirements - GPU Architecture and Types - AI Ecosystem Components

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Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions (Q72-Q77):

NEW QUESTION # 72
An engineer deploys BGP EVPN in a Cisco VXLAN fabric. Which route type advertises MAC and IP binding information for endpoints?

A. Type 2
B. Type 4
C. Type 5
D. Type 1

Answer: A

Explanation:
EVPN Type 2 routes advertise MAC and optional IP bindings for endpoints, enabling efficient host reachability in VXLAN overlays. Type 5 routes advertise IP prefixes, while Types 1 and 4 handle Ethernet segment and multihoming information. AI fabrics rely heavily on accurate endpoint advertisement for scalability.

NEW QUESTION # 73
An organization deploys a new AI training fabric that uses RoCEv2 for GPU communication. The network architect designs the QoS configuration to ensure reliable RDMA transport and must meet these requirements:
- Support 256 GPU servers with RDMA connectivity.
- Prevent any packet loss that causes RDMA connection failures.
- Maintain consistent low-latency communication with a target of less
than 10 microseconds.
- Use industry-standard protocols and configurations.
Which configuration ensures that RoCEv2 operates as a lossless transport?

A. Set the RDMA traffic to use the highest DSCP value to ensure priority forwarding.
B. Implement traffic shaping to smooth RDMA traffic bursts and prevent congestion.
C. Configure weighted fair queuing to prioritize RDMA traffic over other traffic classes.
D. Enable Priority Flow Control on the traffic class carrying RoCEv2 packets.

Answer: D

Explanation:
RoCEv2 requires lossless Ethernet behavior to prevent packet drops that can disrupt RDMA communication. Enabling Priority Flow Control on the traffic class carrying RoCEv2 packets allows Ethernet pause behavior for that priority, helping maintain reliable, low-latency RDMA transport across the AI training fabric.

NEW QUESTION # 74
A server administrator must monitor the performance and utilization of GPUs in Cisco UCS servers running AI workloads. Which two metrics must be used in Cisco Intersight to accomplish these goals? (Choose two.)

A. Insights
B. GPU Memory Utilization
C. Explorer
D. Active CPU Utilization
E. Monitor

Answer: B,D

Explanation:
Cisco Intersight performance monitoring uses resource utilization metrics to identify bottlenecks in AI workloads. Active CPU utilization shows whether host processing is limiting workload execution, while GPU memory utilization shows how effectively GPU memory is being consumed during model processing and training or inference tasks.

NEW QUESTION # 75
A company deploys a Cisco UCS environment to host AI inferencing workloads that demand low latency, high throughput, and efficient resource utilization. Which set of actions must be taken to deploy a high-performance fabric within the Cisco UCS infrastructure?

A. Deploy a Cisco MDS 9000 Series Switch for Fibre Channel connectivity to storage.
Use a Cisco Fabric Interconnect for management traffic only.
B. Connect UCS servers to a Cisco Nexus 3000 Series Switch using 100 Gb Ethernet.
Configure a separate management network using a dedicated Cisco Catalyst switch.
C. Use a single Cisco Fabric Interconnect in a standalone configuration.
Connect all UCS servers directly to it using 10 Gb Ethernet.
D. Implement a dual-fabric design with two Cisco Fabric Interconnects, and use 100 Gb Ethernet for server-to-fabric connectivity.
Configuring port channels for uplink connections.

Answer: D

Explanation:
A dual-fabric design with redundant Cisco Fabric Interconnects provides high availability, bandwidth scale, and resilient server-to-fabric connectivity. Using 100 Gb Ethernet and port- channel uplinks supports the low-latency, high-throughput fabric required for AI inferencing workloads while improving utilization and avoiding single points of failure.

NEW QUESTION # 76
A data center operator configures telemetry streaming on Cisco Nexus switches. What is the primary operational advantage over traditional SNMP polling?

A. Real-time visibility with lower overhead
B. Mandatory hardware replacement
C. Elimination of routing tables
D. Increased packet fragmentation

Answer: A

Explanation:
Streaming telemetry continuously exports operational data in near real time, improving visibility and reducing polling overhead compared to SNMP. AI infrastructures require rapid monitoring of congestion and latency conditions. Telemetry does not remove routing tables or require hardware replacement.

NEW QUESTION # 77
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