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Updated: Sep 16, 2026
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Cisco 300-640 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Implementing Cisco Data Center AI Infrastructure |
| Exam Number: | 300-640 |
| Real Exam Qty: | 55-65 |
| Exam Duration: | 90 minutes |
| Related Certifications: | Cisco Certified Specialist - Data Center AI Infrastructure |
| Exam Price: | USD 400 |
| Certificate Validity Period: | 3 years |
| Passing Score: | 700-1000 |
| Available Languages: | English |
| Exam Format: | Simulation, Multiple choice, Drag-and-drop |
| Sample Questions: | Cisco 300-640 Sample Questions |
| Exam Way: | Online proctored or at Pearson VUE testing center |
| Pre Condition: | Recommended: CCNP Data Center or equivalent knowledge; Familiarity with data center networking concepts |
| Official Syllabus URL: | https://learningnetwork.cisco.com/s/300-640-dcai-exam-topics |
Cisco 300-640 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Cisco AI Infrastructure Architecture | 30% | - Network Architecture for AI Workloads - Storage Architecture Considerations - Hyperconverged Infrastructure for AI - Cisco UCS AI Infrastructure Solutions |
| AI Infrastructure Operations | 20% | - Capacity Planning - Performance Optimization - Monitoring and Management Tools - Troubleshooting Common Issues |
| AI Infrastructure Deployment | 25% | - Network Switch Configuration - Hardware Installation and Configuration - Storage Configuration for AI - Cabling and Connectivity - GPU Server Configuration |
| AI Infrastructure Security and Compliance | 10% | - Compliance Considerations - Security Best Practices - Access Control and Authentication |
| AI Infrastructure Fundamentals | 15% | - AI Workload Characteristics - GPU Architecture and Types - AI Ecosystem Components - AI Infrastructure Requirements |
Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions:
Which network design approach should be used to build a high-performance, nonblocking AI/ML data center fabric that supports 64 fully equipped UCS C885A nodes and provides the lowest possible latency and lossless Ethernet?
- A. leaf-spine
- B. rail optimized
- C. flat Layer 2
- D. traditional three-tier
Correct Answer: B 🗳️
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A Cisco Nexus switch experiences head-of-line blocking in an RDMA environment. Which mechanism is most effective in reducing this condition?
- A. Weighted Random Early Detection
- B. NAT overload
- C. PortFast
- D. Virtual output queuing
Correct Answer: D 🗳️
Explanation: Only visible for Pass4training members. You can sign-up / login (it's free).
What is a function of NVLink technology within a high-performance AI server or cluster?
- A. to establish a secure, encrypted channel for data transfer between the AI server and external storage
- B. to provide a high-speed, low-latency direct interconnect for GPU-to-GPU communication
- C. to enable remote access and virtualization of GPU resources for distributed AI development teams
- D. to manage power distribution and thermal regulation across all installed GPU units
Correct Answer: B 🗳️
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Which IP-based storage transport supports flow control between directly connected devices?
- A. NVMe/RoCE
- B. iSCSI
- C. Fibre Channel
- D. NVMe/TCP
Correct Answer: A 🗳️
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When considering a rail-only network design, when would adding spine switches make sense?
- A. when providing greater overall total bandwidth within a single scalable unit
- B. when needing a greater path redundancy within a single scalable unit
- C. when increasing the overall available buffers that spines provide
- D. when scaling out to support traffic between multiple scalable units
Correct Answer: D 🗳️
Explanation: Only visible for Pass4training members. You can sign-up / login (it's free).
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