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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Center Network Architecture Design | 30% | - Requirements analysis and solution design
|
| Topic 2: Data Center Network Security and Policy | 20% | - Security architecture and policy enforcement
|
| Topic 3: Lossless and AI-Optimized Networking | 15% | - Advanced transport and optimization
|
| Topic 4: EVPN-VXLAN Overlay Technologies | 25% | - Overlay network design and implementation
|
| Topic 5: Management, Orchestration and Operations | 10% | - Management architecture and tools
|
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NEW QUESTION # 42
A customer's security team requires micro-segmentation down to the individual workload level within the data center. Which technology combination best satisfies this requirement in an Aruba CX + VMware environment?
Answer: D
Explanation:
NSX's distributed firewall enforces security policy at the vNIC/workload level regardless of physical topology, while the CX VXLAN/EVPN fabric provides the underlying transport. VLANs alone can't achieve workload-level granularity, physical firewalls per server pair are impractical, and disabling east-west traffic breaks application functionality.
NEW QUESTION # 43
A customer is deploying a cluster of twelve servers for AI workloads. Each server has four NVIDIA GPUs connected through NVLink. Each server supports 400 GbE connectivity on as many as six ports; however, you may recommend fewer ports. You have been asked to design a network for the servers' backend AI interconnect.
Based on HPE Networking recommendations for this workload, how many CX 9300-32D switches should you propose?
Answer: A
Explanation:
High-performance artificial intelligence and machine learning (AI/ML) compute clusters running distributed training models rely on specialized backend fabric designs to support massive GPU-to-GPU communications via RDMA over Converged Ethernet (RoCEv2). HPE networking guidelines prescribe a " rail-optimized " network architecture for multi-GPU server nodes.
In a rail-optimized fabric, each dedicated GPU within an accelerated compute node connects to a distinct, parallel network rail (plane). Because each server hosts four NVIDIA GPUs interconnected internally via high-bandwidth NVLink, four discrete network rails are required-one dedicated rail per GPU position across all servers. Each rail operates as an independent, non-blocking Layer 3 fabric where traffic between corresponding GPU ranks (e.g., GPU 0 to GPU 0, GPU 1 to GPU 1) traverses its own switching plane without colliding with other GPU traffic.
With 12 servers requiring 400 GbE backend uplinks, each of the four rails requires 12 downlink ports. A single Aruba CX 9300-32D switch provides 32 native 400 GbE QSFP-DD ports. Thus, a single CX 9300-32D switch easily accommodates the 12 connections for one rail, requiring exactly four CX 9300-32D switches to build the four complete, non-blocking parallel backend rails.
Reference Topics: HPE AI/ML Networking Architectures - Rail-Optimized Backend Fabrics; RoCEv2 GPU Interconnects and Aruba CX 9300-32D Topologies.
NEW QUESTION # 44
Drag and Drop Question
Match the switch family with the capability.
Answer:
Explanation:
Explanation:
CX 9300 supports high-density 400G/100G breakout designs, CX 8360 uses Aruba Gen7 ASIC, CX 10000 provides Pensando-powered distributed services, and CX 6405 is a modular chassis platform with redundant management module support.
NEW QUESTION # 45
A customer has deployed CX 10000 switches, Fabric Composer, and Pensando Policy and Services Manager (PSM). The switches are discovered in PSM, but no VRFs or networks have been added. The customer now wants to begin by applying micro-segmentation to one network. They state that they plan to add a policy containing rules that permit desired traffic from endpoints in this network. They will apply it to the network as an egress policy. At this time, they will not add any other networks to PSM or apply policies to them.
What warning should you raise to the customer about this plan?
Answer: D
Explanation:
On the HPE Aruba Networking CX 10000 Series switch, the integration between the switch ASIC and the AMD Pensando Distributed Services Module (DSM) requires disciplined data model configuration in Pensando Policy and Services Manager (PSM). In PSM, a " Network " object represents a specific VLAN within a corresponding Virtual Routing and Forwarding (VRF) context. When a Network object is created and bound to a policy, the switch dataplane redirects traffic associated with that VLAN to the Pensando DPU for stateful inspection and policy enforcement.
HPE best practices explicitly state that if security policies or micro-segmentation are applied to any single network within a VRF, all networks (VLANs) existing within that VRF should be defined as Network objects within PSM. Defining only a partial subset of active networks within the same routing domain creates an asymmetric policy state where the DPU inspects one side of an inter-VLAN conversation while the return path or adjacent subnet traffic is handled strictly by the ASIC without DPU state tracking. This discrepancy frequently leads to dropped return packets, broken TCP state tables, and widespread reachability failures across endpoints within the unmanaged subnets. Adding all networks in the VRF prevents blackholing and maintains deterministic stateful session tracking.
Reference Topics: HPE Aruba CX 10000 Distributed Services Architecture - PSM Network and VRF Configuration Guidelines, Stateful Inspection Boundaries.
NEW QUESTION # 46
Identify the documentation resources for finding validated information that assists the architect in designing the solution (Choose two.)
Answer: A,E
Explanation:
Architects should rely on validated vendor documentation such as configuration guides for supported designs/settings and data sheets for product capabilities, specifications, and limits.
NEW QUESTION # 47
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