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Cisco 300-640 Exam Syllabus Topics:

Section	Objectives
Security and Governance in AI Data Centers	- Infrastructure security 1. Network segmentation and policy enforcement 2. Secure access to AI workloads
AI Infrastructure Deployment and Operations	- Operations and lifecycle management 1. Performance tuning and optimization 2. Monitoring and observability - Deployment models 1. Hybrid AI infrastructure integration 2. On-premises AI clusters
Data Center Networking for AI Workloads	- High-performance fabric design 1. Low-latency switching and routing considerations 2. Leaf-spine architecture in AI environments - Cisco Data Center networking technologies 1. Cisco Nexus platform concepts 2. Cisco ACI integration concepts
Compute and Storage for AI Infrastructure	- Compute architecture 1. GPU-based compute nodes 2. HPC-style scaling considerations - Storage systems 1. High-throughput storage for AI training data 2. Distributed storage concepts
Data Center AI Infrastructure Fundamentals	- AI/ML workload requirements in data centers 1. Compute, GPU, and acceleration concepts 2. Data pipeline and workload characteristics

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Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions (Q80-Q85):

NEW QUESTION # 80
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 HyperFabric controller cannot reach the email server of the Acme Corporation.
D. The recipient email address is not verified by the HyperFabric controller.
E. The DNS server IP is not defined in the controller.

Answer: A,D

Explanation:
Email endpoints must be verified before they can receive HyperFabric notifications, and the endpoint must also be included with the relevant fabric in the notification policy. Creating the email endpoint alone does not activate assertion notifications for a fabric until both of these notification requirements are completed.

NEW QUESTION # 81
An engineer made changes to the corporate DNS, which caused a Cisco UCS X-Series domain to lose connectivity to Intersight. To restore connectivity, the management interface DNS and NTP settings must be updated using the device console UI. Which configuration change must be made in Intersight to allow the updated DNS configuration to persist?

A. Edit the domain profile deployed to the fabric interconnect.
B. Create a network connectivity policy and apply it to the blade chassis.
C. Create a device connector policy and apply it to the blade chassis.
D. Edit the IMC access policy associated to the fabric interconnects.

Answer: A

Explanation:
In Cisco Intersight Managed Mode, the fabric interconnect management DNS and NTP settings are controlled through the UCS domain profile. If the settings are changed locally from the device console UI, the deployed domain profile must also be updated in Intersight so the corrected configuration is not overwritten during the next policy deployment or compliance remediation.

NEW QUESTION # 82
A data center operator configures telemetry streaming on Cisco Nexus switches. What is the primary operational advantage over traditional SNMP polling?

A. Elimination of routing tables
B. Mandatory hardware replacement
C. Increased packet fragmentation
D. Real-time visibility with lower overhead

Answer: D

Explanation:
Streaming telemetry continuously exports operational data in near real time, improving visibility and reducing polling overhead compared to SNMP. AI infrastructures require rapid monitoring of congestion and latency conditions. Telemetry does not remove routing tables or require hardware replacement.

NEW QUESTION # 83
A network engineer must secure management access to Cisco Nexus AI switches. Which protocol should replace Telnet to provide encrypted administrative sessions?

A. TFTP
B. FTP
C. SNMPv1
D. SSH

Answer: D

Explanation:
SSH provides encrypted remote management sessions and protects credentials and configuration traffic from interception. Telnet transmits data in plaintext and is unsuitable for secure AI data center environments. FTP and TFTP are file transfer protocols, while SNMPv1 lacks modern security protections.

NEW QUESTION # 84
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. Enable Priority Flow Control specifically for CNP packets on a dedicated CoS value.
C. Classify CNP packets to a high-priority queue using their DSCP marking.
D. Configure CNP packets to use the same queue as regular RoCEv2 data traffic.

Answer: C

Explanation:
CNP packets provide congestion feedback for RoCEv2 traffic and must be delivered reliably so senders can reduce their transmission rate when congestion is detected. Classifying CNP packets into a high-priority queue based on their DSCP marking ensures that these control packets receive preferential treatment and are not dropped during congestion.

NEW QUESTION # 85
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