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Cisco 300-640 Exam Syllabus Topics:

Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions:

Question 1

What describes inference traffic patterns in AI deployments?

A. optimizes data storage solutions for data lakes
B. eliminates the need for data preparation
C. simplifies complex neural network architectures
D. provides real-time decision making

Question 2

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

Question 3

Refer to the exhibit. Users report delayed response times and network latency when running certain AI workloads on a specific Cisco UCS Intersight Managed Mode Domain. Based on the fault message and reported symptoms, which troubleshooting action must be taken first to address the network latency issues?

A. Review the pause frame counters for signs of congestion on Fabric Interconnect B Port 11.
B. Check the physical cabling and SFP+ transceivers on port 11 of switch B for potential hardware failures or incorrect configurations.
C. Examine the UCS fabric interconnect configuration for port-channel 11 on Fabric Interconnect B.
D. Review the AI workload configuration to optimize resource allocation (CPU, memory, GPU) for the affected applications.

Question 4

Drag and Drop Question

Refer to the exhibit. When a new AI backend network that supports Cisco UCS-based GPU servers with NVIDIA Connect-X network adapters is benchmarked, the traffic distribution observed has unacceptable variability across the interfaces. Drag and drop the code snippets from the bottom onto the boxes in the code to configure the switch to resolve the issue.

Question 5

A customer deploys a UCS 885a server in a data center with two power grids. Three of the
3000W power supplies in the server connect to each grid. Due to an external event, one of the grids will be shut down for maintenance. How does the server respond to this event?

A. The server immediately shuts down and stops all operations.
B. The server initiates a graceful shut down of the operating system.
C. The server continues to operate at full performance using redundant power supplies, but the PSU status LED glows solid amber.
D. The server operates with reduced performance and caps power to GPUs at 60%.

Solutions: