Cisco 300-640

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Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions:

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

2. 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) STP
B) HSRP
C) OSPF
D) BGP EVPN

3. 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 enable Path MTU Discovery so that the optimal packet size can be negotiated
C) to ensure that packets always take the same path through ECMP routing for consistent latency
D) to prevent IP fragmentation that would break the InfiniBand sequence numbering and ordering guarantees

4. 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 immediately shuts down and stops all operations.
C) The server initiates a graceful shut down of the operating system.
D) The server continues to operate at full performance using redundant power supplies, but the PSU status LED glows solid amber.

5. What does workload distribution offer in an AI infrastructure with local and external resources?

A) restriction of automation to local storage and performance measures
B) isolation of analytic functions within remote processing clusters
C) distribution of computational tasks across multiple locations
D) enforcement of fixed security policies on distribution endpoints

Solutions: