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Cisco 300-640 Exam Syllabus Topics:

Section	Objectives
Topic 1: Security and Governance in AI Data Centers	- Infrastructure security 1. Network segmentation and policy enforcement 2. Secure access to AI workloads
Topic 2: Data Center AI Infrastructure Fundamentals	- AI/ML workload requirements in data centers 1. Compute, GPU, and acceleration concepts 2. Data pipeline and workload characteristics
Topic 3: Data Center Networking for AI Workloads	- Cisco Data Center networking technologies 1. Cisco Nexus platform concepts 2. Cisco ACI integration concepts - High-performance fabric design 1. Low-latency switching and routing considerations 2. Leaf-spine architecture in AI environments
Topic 4: AI Infrastructure Deployment and Operations	- Deployment models 1. Hybrid AI infrastructure integration 2. On-premises AI clusters - Operations and lifecycle management 1. Monitoring and observability 2. Performance tuning and optimization
Topic 5: Compute and Storage for AI Infrastructure	- Compute architecture 1. GPU-based compute nodes 2. HPC-style scaling considerations - Storage systems 1. Distributed storage concepts 2. High-throughput storage for AI training data

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Cisco Implementing Cisco Data Center AI Infrastructure Sample Questions (Q78-Q83):

NEW QUESTION # 78
A network engineer logs into Nexus Dashboard and sees an anomaly showing that a BGP peer connection has gone down. Next to the anomaly, a yellow bubble displays "Correlated." What does Nexus Dashboard indicate by "Correlated" in this case?

A. It indicates that the Nexus Dashboard has seen this anomaly across more than one device in the fabric.
B. It indicates that this anomaly is a result of a higher-level root anomaly.
C. It indicates that the Nexus Dashboard has correlated this anomaly to activity by specific user account.
D. It indicates that the Nexus Dashboard has correlated the scope of the impact.

Answer: B

Explanation:
In Nexus Dashboard, a correlated anomaly means the displayed issue is associated with a higher-level root anomaly. The BGP peer-down event is being treated as a resulting or related symptom rather than the primary root cause, helping operators focus troubleshooting on the upstream issue first.

NEW QUESTION # 79
A Cisco Nexus switch is configured with QoS policies for AI traffic. Which scheduling mechanism guarantees bandwidth for critical traffic classes during congestion?

A. MAC filtering
B. FIFO
C. Weighted scheduling
D. Port mirroring

Answer: C

Explanation:
Weighted scheduling allocates bandwidth according to configured priorities, ensuring critical AI traffic receives adequate forwarding resources during congestion. FIFO provides no prioritization, while MAC filtering and port mirroring are unrelated to congestion management or QoS scheduling.

NEW QUESTION # 80
A network architect designs a Cisco AI fabric with spine-leaf topology. What is the primary advantage of this architecture for AI training workloads?

A. Predictable low-latency east-west traffic
B. Simplified wireless integration
C. Elimination of routing protocols
D. Reduced need for IP addressing

Answer: A

Explanation:
AI workloads generate massive east-west traffic between compute nodes. Spine-leaf designs provide predictable latency and scalable bandwidth because each leaf switch maintains equal- cost paths to all spines. Routing protocols are still required, IP addressing remains necessary, and wireless integration is unrelated to AI fabric performance requirements.

NEW QUESTION # 81
An organization deploys a new AI training fabric that uses RoCEv2 for GPU communication. The network architect designs the QoS configuration to ensure reliable RDMA transport and must meet these requirements:
- Support 256 GPU servers with RDMA connectivity.
- Prevent any packet loss that causes RDMA connection failures.
- Maintain consistent low-latency communication with a target of less
than 10 microseconds.
- Use industry-standard protocols and configurations.
Which configuration ensures that RoCEv2 operates as a lossless transport?

A. Enable Priority Flow Control on the traffic class carrying RoCEv2 packets.
B. Implement traffic shaping to smooth RDMA traffic bursts and prevent congestion.
C. Configure weighted fair queuing to prioritize RDMA traffic over other traffic classes.
D. Set the RDMA traffic to use the highest DSCP value to ensure priority forwarding.

Answer: A

Explanation:
RoCEv2 requires lossless Ethernet behavior to prevent packet drops that can disrupt RDMA communication. Enabling Priority Flow Control on the traffic class carrying RoCEv2 packets allows Ethernet pause behavior for that priority, helping maintain reliable, low-latency RDMA transport across the AI training fabric.

NEW QUESTION # 82
A bank is planning to deploy an AI inference solution at its branch locations. The solution must support workloads that require a balance of compute, memory, and potential GPU acceleration, and it must be suitable for installation by nontechnical onsite resources. The requirements are:
- high availability of the chassis management plane.
- support for up to 768 GB of memory for in-memory model storage and
processing
- remote server launch requiring no on-site IT staff
- use of Cisco Intersight for SaaS-based infrastructure lifecycle
management
Which solution meets the requirements?

A. Cisco Unified Edge
B. Cisco UCS C845A M8 Server
C. Cisco UCS C240 Servers
D. Cisco UCS X-Series Direct

Answer: A

NEW QUESTION # 83
......

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