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Cisco 300-640 Exam Syllabus Topics:

Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions:

1. 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

2. Drag and Drop Question
An engineer must configure vNIC templates for a UCS X-Series deployment. Drag and drop the policy types from the left onto the corresponding configuration settings on the right. Not all options are used.

3. 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) BPDU Guard
B) Priority Flow Control
C) DHCP Snooping
D) Storm Control

4. To support growing AI workload requirements, a regional medical practice is adding new X9516 X-Fabric module, UCS PCI Mezz cards, and UCS X580p PCIe nodes to their existing X-Series chassis. Which two administrative actions must be taken before the X-Fabric module is added to the chassis? (Choose two.)

A) Install UCS PCI Mezzanine cards in X-Series blades.
B) Power down all blades that would connect to the X-Fabric modules.
C) Power down all IFMs in the chassis.
D) Disconnect device connector.
E) Disconnect cabling between IFMs and fabric interconnects.

5. A nationwide grocery chain has deployed Unified Edge to all its locations. Each store has 10 or more surveillance cameras that write approximately 1 Gb per hour. The surveillance retention policy requires maintaining 2 weeks of recording per camera. Which type of cost-effective centralized storage solution must be evaluated with Unified Edge devices to adhere to this policy?

A) Fibre Channel shared storage
B) local storage
C) Infiniband shared storage
D) IP-based shared storage

Solutions: