Cisco 300-640 Actual PDF : Implementing Cisco Data Center AI Infrastructure

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

2. 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) Priority Flow Control
D) BPDU Guard

3. A medical company has existing third-party AI servers and NVMe storage, but they want to purchase Cisco network switches with a cloud managed feature for simplicity. Which solution best meets the requirements?

A) Nexus Dashboard with Nexus 9000 Series Switches and Cloud license
B) Bring Your Own AI (BYO AI) HyperFabric with Cisco 6000 Series Switches and Premier license
C) Bring Your Own AI (BYO AI) HyperFabric with Cisco 6000 Series Switches and Essentials license
D) HyperFabric AI with Cisco 6000 Series Switches and Premier license

4. An administrator configures VXLAN EVPN in a Cisco AI data center fabric. The requirement is to provide Layer 2 adjacency across multiple leaf switches while maintaining scalable control-plane learning. Which protocol fulfills this function?

A) OSPF
B) HSRP
C) STP
D) BGP EVPN

5. An engineer configures quality of service in the Cisco ACI fabric to connect VAST storage servers. Which combination of attributes must be selected?

A) Congestion Algorithm: Tail Drop
Congestion Notification: Enabled
B) Congestion Algorithm: Tail Drop
Congestion Notification: Disabled
C) Congestion Algorithm: Weighted Random Early Detection (WRED)
Congestion Notification: Disabled
D) Congestion Algorithm: Weighted Random Early Detection (WRED)
Congestion Notification: Enabled

Solutions: