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Cisco 300-640 Exam Syllabus Topics:

Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions:

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

2. 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?

A) to ensure that packets always take the same path through ECMP routing for consistent latency
B) to enable Path MTU Discovery so that the optimal packet size can be negotiated
C) to indicate to intermediate switches that the packet contains RDMA traffic requiring special handling
D) to prevent IP fragmentation that would break the InfiniBand sequence numbering and ordering guarantees

3. Which function is provided through natural language processing?

A) automated conversion of spoken or written content into structured data
B) compression of large configuration files for storage efficiency
C) annotation of data transmission protocols for device authorization
D) filtration of duplicate entries from transaction records

4. A network team is configuring quality of service (QoS) for RoCEv2 traffic on a VXLAN fabric. The team must ensure that congestion notification packets (CNP) generated by storage targets are never dropped in the network, as these packets are critical for congestion control feedback. How must CNP packets be handled in the QoS configuration to ensure reliable delivery?

A) Apply traffic shaping to CNP packets to prevent them from causing additional congestion.
B) Enable Priority Flow Control specifically for CNP packets on a dedicated CoS value.
C) Classify CNP packets to a high-priority queue using their DSCP marking.
D) Configure CNP packets to use the same queue as regular RoCEv2 data traffic.

5. An end customer plans to deploy an AI fabric in a new data center. Their engineers are more familiar with CLI-based networks and require the capability to automate standardized configuration templates and monitor flows for the fabric. Which data center automation tool meets the requirements?

A) Nexus Dashboard
B) HyperFabric
C) Intersight
D) Digital Network Architecture Center

Solutions: