Cisco CCNP Data Center 300-640

Unlimited use

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Simulation test system

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Cisco 300-640 Exam Syllabus Topics:

Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions:

1. An engineer notices excessive broadcast traffic inside a legacy AI server VLAN. Which technology should be implemented to reduce flooding and improve scalability?

A) VXLAN EVPN
B) PAT
C) RIP
D) GRE tunneling

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

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

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

5. Drag and Drop Question
A network engineer is designing congestion management for an AI cluster using RoCEv2 transport. Based on Cisco best practices, the engineer must understand how ECN and PFC work together to provide lossless Ethernet transport. Drag and drop the congestion management mechanisms from the left onto the corresponding descriptions on the right. Not all options are used.

Solutions: