Cisco CCNP Data Center 300-640

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Cisco 300-640 Exam Syllabus Topics:

Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions:

Question #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 prevent IP fragmentation that would break the InfiniBand sequence numbering and ordering guarantees
B. to indicate to intermediate switches that the packet contains RDMA traffic requiring special handling
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

Question #2
A corporate network administrator manages a HyperFabric AI environment and wants to receive email notifications about assertions in the fabric. The administrator sets up a recipient email endpoint under the notification endpoints in the controller, but notifications are not received.
Which two configurations cause the issue? (Choose two.)

A. The fabric of interest and email endpoint are not configured in the default notification policy.
B. The email server configuration is not configured using the DNS name.
C. The recipient email address is not verified by the HyperFabric controller.
D. The DNS server IP is not defined in the controller.
E. The HyperFabric controller cannot reach the email server of the Acme Corporation.

Question #3
A network architect designs connectivity for a new Cisco AI POD operating in Intersight Managed Mode. To ensure high availability and aggregate bandwidth for external network traffic, a port channel must be established using multiple 100 GbE uplink ports on the fabric interconnects to connect to the upstream core switch infrastructure. Which specific policy, applied through the domain profile, must be modified to define and configure this port channel on the fabric interconnects for the desired uplink connectivity?

A. port policy
B. Ethernet network group
C. LAN connectivity policy
D. network connectivity policy

Question #4
A financial company plans to deploy an AI training and inference infrastructure to support its customers. The team must use a solution that provides 96 GPUs, aligns with NVIDIA-compliant reference architectures, and enables cloud-based management of the entire on-premises network environment. Which Cisco solution meets the requirements?

A. Cisco Nexus Dashboard deployed in AWS or Azure with Nexus 9000 switches and AI servers on premises
B. Cisco Intersight AI fabric with Nexus 9000 switches and AI servers on premises
C. Cisco HyperFabric AI Small AI Cluster with Cisco 6000 switches and AI servers on premises
D. Cisco HyperFabric AI Medium AI Cluster with Cisco 6000 switches and AI servers on premises

Question #5
Which network design approach should be used to build a high-performance, nonblocking AI/ML data center fabric that supports 64 fully equipped UCS C885A nodes and provides the lowest possible latency and lossless Ethernet?

A. rail optimized
B. flat Layer 2
C. leaf-spine
D. traditional three-tier

Solutions: