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Cisco 300-640 Exam Syllabus Topics:

Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions:

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

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

3. A Cisco Nexus switch participates in an AI cluster using ECMP forwarding. Several flows between GPU servers consistently use the same uplink, creating congestion while other links remain underutilized. Which action improves traffic distribution?

A) Enable port security
B) Increase MTU size
C) Modify the hashing algorithm
D) Disable hashing

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

5. A company deploys a Cisco UCS environment to host AI inferencing workloads that demand low latency, high throughput, and efficient resource utilization. Which set of actions must be taken to deploy a high-performance fabric within the Cisco UCS infrastructure?

A) Deploy a Cisco MDS 9000 Series Switch for Fibre Channel connectivity to storage.
Use a Cisco Fabric Interconnect for management traffic only.
B) Implement a dual-fabric design with two Cisco Fabric Interconnects, and use 100 Gb Ethernet for server-to-fabric connectivity.
Configuring port channels for uplink connections.
C) Use a single Cisco Fabric Interconnect in a standalone configuration.
Connect all UCS servers directly to it using 10 Gb Ethernet.
D) Connect UCS servers to a Cisco Nexus 3000 Series Switch using 100 Gb Ethernet.
Configure a separate management network using a dedicated Cisco Catalyst switch.

Solutions: