Learn with Cisco : 300-640 training material for 100% pass
Updated: Oct 15, 2026
No. of Questions: 82 Questions & Answers with Testing Engine
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Cisco 300-640 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Implementing Cisco Data Center AI Infrastructure |
| Exam Number: | 300-640 DCAI |
| Exam Format: | Drag and drop, Simulation, Multiple select, Multiple choice |
| Exam Duration: | 90 minutes |
| Exam Price: | USD 300 |
| Passing Score: | Variable (approx. 750-850 out of 1000) |
| Related Certifications: | CCNP Data Center Cisco Certified Specialist - Data Center AI Infrastructure |
| Available Languages: | English |
| Real Exam Qty: | 55-65 |
| Certificate Validity Period: | 3 years |
| Recommended Training: | Implementing Cisco Data Center AI Infrastructure (DCAI) Training Implementing and Operating Cisco Data Center Core Technologies (DCCOR) |
| Exam Registration: | Cisco Official Exam Registration |
| Sample Questions: | Cisco 300-640 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | No formal prerequisites; recommended: knowledge of Cisco UCS, Nexus switching, and data center core technologies; 3–5 years of data center experience |
| Official Syllabus URL: | https://www.cisco.com/site/us/en/learn/training-certifications/exams/dcai.html |
Cisco 300-640 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: AI Infrastructure Deployment and Data Management | 30% | - Integrate AI frameworks and applications with Cisco infrastructure - Deploy and manage AI infrastructure with orchestration tools - Configure high-performance networks for AI: Cisco Nexus, NDFC, lossless fabrics - Implement data management and lifecycle for AI workloads - Configure compute and storage using Cisco UCS: profiles, policies, Intersight |
| Topic 2: AI Infrastructure Components and Architecture | 30% | - Evaluate network requirements for AI workloads: bandwidth, latency, congestion control, RoCEv2, QoS - Evaluate hybrid and multi-cloud AI integration - Evaluate power, cooling, and efficiency requirements - Evaluate compute requirements: CPU, GPU, NVLink, virtualization, containerization, scalability - Evaluate storage requirements: capacity, performance, data pipelines, distributed architectures |
| Topic 3: AI Infrastructure Fundamentals | 20% | - Describe core components of AI infrastructure: network, compute, storage, orchestration, monitoring - Describe AI use cases in data center environments - Explain Cisco AI infrastructure solutions and portfolio - Describe AI and machine learning concepts - Describe types of AI infrastructure: on-premises, cloud, hybrid, edge |
| Topic 4: AI Infrastructure Operations and Troubleshooting | 20% | - Optimize performance, security, and reliability - Monitor infrastructure: Nexus Dashboard, Intersight, telemetry, alerts - Implement performance benchmarking and validation - Manage health, logs, and events - Troubleshoot network, compute, storage, and orchestration issues |
Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions:
A data center team enables jumbo frames in a Cisco AI cluster. What is the primary benefit of increasing the MTU for east-west GPU traffic?
- A. Elimination of packet buffering
- B. Increased encryption overhead
- C. Lower CPU utilization and fewer frames
- D. Reduced Layer 3 convergence time
Correct Answer: C 🗳️
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A network administrator configures RDMA over Converged Ethernet version 2 (RoCEv2). Which transport protocol does RoCEv2 use at Layer 4?
- A. SCTP
- B. ICMP
- C. TCP
- D. UDP
Correct Answer: D 🗳️
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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. PortFast
- C. Virtual output queuing
- D. NAT overload
Correct Answer: C 🗳️
Explanation: Only visible for Exam4Labs members. You can sign-up / login (it's free).
A company implements multicast traffic optimization for distributed AI training nodes. Which protocol enables efficient multicast receiver discovery in IPv4 networks?
- A. IGMP
- B. CDP
- C. ARP
- D. LLDP
Correct Answer: A 🗳️
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A network engineer is deploying an AI training fabric using Cisco Nexus switches with RoCEv2 enabled. During testing, packet drops occur when traffic bursts exceed buffer capacity. Which feature should be configured to minimize congestion and improve lossless Ethernet performance for GPU traffic?
- A. DHCP Snooping
- B. Storm Control
- C. BPDU Guard
- D. Priority Flow Control
Correct Answer: D 🗳️
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