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| Section | Weight | Objectives |
|---|---|---|
| Data Center Network Security and Policy | 20% | - Security architecture and policy enforcement
|
| Management, Orchestration and Operations | 10% | - Management architecture and tools
|
| Data Center Network Architecture Design | 30% | - Requirements analysis and solution design
|
| EVPN-VXLAN Overlay Technologies | 25% | - Overlay network design and implementation
|
| Lossless and AI-Optimized Networking | 15% | - Advanced transport and optimization
|
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NEW QUESTION # 45
You have designed an L3 spine and leaf topology for a customer's data center which is highly virtualized with VMware vSphere. This customer already uses HPE Aruba Networking mobility and switching solutions in the campus. You are recommending CX 8325 and CX 9300 switches and Fabric Composer The customer asks you to justify the cost of the Fabric Composer licenses.
What should you explain?
Answer: D
Explanation:
Fabric Composer provides VMware vSphere integration and automation for data center fabric operations, including simplifying/automating VLAN and network provisioning.
NEW QUESTION # 46
The customer runs a 24/7 production facility and is concerned that the migration could interrupt the production line.
Which two approaches can minimize or eliminate this disruption? Choose two.
Answer: B,C
Explanation:
Migrating continuous, 24/7 mission-critical production environments requires migration methodologies designed to prevent widespread downtime and maintain rollback capabilities.
The primary best-practice approach is parallel infrastructure deployment. By installing, cabling, and configuring the new Aruba CX core and leaf infrastructure alongside the legacy network, architects can establish temporary inter-switch links (trunks) to extend Layer 2 VLANs between the environments. This architecture allows routing protocols, overlay services, and management platforms to be validated prior to migrating live production traffic, enabling a controlled cutover.
Concurrently, at the server access edge, executing a staged migration that replaces one access switch at a time using a predefined, documented patch plan limits disruption to a small, isolated set of endpoints. Dual-homed servers and clustered systems maintain network connectivity across redundant links while individual connections are migrated. Conversely, shutting down the facility for a single cutover ( " big-bang " ) violates the customer ' s 24/7 uptime mandate, while migrating access layers before establishing core/distribution infrastructure introduces severe forwarding and spanning-tree loop risks.
Reference Topics: HPE Network Migration Strategies - Minimizing Downtime in 24/7 Environments; Parallel Core Cutover and Staged Port Migration.
NEW QUESTION # 47
Waratah Hospital, based in Australia, is planning to move many data center services to new facility. (The remaining legacy data center will not be part of this project.) Waratah Hospital hired an external consultant to assist with the new data center network design.
Based on the requirements for the data center network infrastructure, the external consultant has created a high-level design. The below summarizes the content of the design document.
Requirements and information:
- Six racks in the data center room (single row).
- Redundant Top of Rack leaf switches with back-to-front cooling in each rack, providing 10/25 Gbps connectivity to servers, storage, and other devices.
- Four 100 GbE uplinks per leaf switch.
- The customer requested to install all switch ports facing the back of the rack racks (hot aisle.)
- OOB management for servers, storage, and network has to be provided through an external switch with back-to-front cooling. This switch has to be included in the solution. One OOB switch provides connectivity for two racks.
- Core equipment for the OOBM network is being reused.
- Middle-of-row spine switches.
-The data center should connect to the hospital building with links that provide 400 Gbps.
- Internet access is provided through an existing firewall cluster with two firewalls, each firewall in one data room. The second firewall is operating in standby mode, VRRP is utilized on the firewalls for failover. The data center network should connect to these firewalls with links that total
100 Gbps.
- The external link is a dark fiber direct link based on single-mode fiber (OS2). The distance to the main hospital 1.5 KM. The links will terminate on two core switches in the hospital.
The customer also requires:
- 99.999% uptime for this life-critical environment.
- Planned and unplanned downtime has to be minimized.
- Software upgrades are only allowed once per year with close to zero downtime.
- All life-critical resources are accessed locally, and all resources exist within the hospital campus.
- Waratah Hospital requires a highly secure environment for the data center. Encrypted wire speed connectivity between the data room and the hospital is a must-have because the link between the buildings crosses a public road.
- Waratah Hospital has a mix of virtualized (vSphere) servers. Nutanix storage, bare metal servers, backup servers and other devices.
In the past, the hospital has had a security breach that resulted in data loss, network downtime, and identity theft.
Refer to the scenario. One of your junior colleagues has recommended deploying CX 8325-32C BF 6F 2AC Bundle switches for border leaf switches. What issue should you point out with this plan?
Answer: C
Explanation:
The hospital link has strict requirements for high-capacity, encrypted wire-speed connectivity, so the proposed border leaf choice must be validated against that requirement.
NEW QUESTION # 48
You are designing an L3 spine-and-leaf topology using CX switches. The switches implement EVPN VXLAN. The customer does not need VRF segmentation for any data-center endpoint traffic.
What should you recommend for the VRF that contains the SVIs for server, VM, and other endpoint VLANs?
Answer: A
Explanation:
In ArubaOS-CX network design, Virtual Routing and Forwarding (VRF) instances provide logical routing isolation at Layer 3. By default, all interfaces, IP routing protocols, and system services exist within the global default VRF unless an explicit custom VRF context is defined.
When engineering an EVPN-VXLAN spine-and-leaf fabric where the customer ' s business requirements explicitly state that tenant isolation, multi-tenancy, and segmented traffic segregation are not required, creating custom tenant VRFs introduces unnecessary configuration complexity. The Switched Virtual Interfaces (SVIs) for server compute, virtual machines, and auxiliary endpoint VLANs can reside directly within the default VRF.
This allows all connected subnets to communicate via the global routing table without requiring inter-VRF route leaking, external border firewall hair-pinning, or complex BGP L3VNI import/export route-target orchestration. The underlying VXLAN VTEP source loopbacks and point-to-point transit links also reside in the default VRF (the underlay), and keeping non-segmented endpoint SVIs in the default VRF ensures a streamlined, maintainable logical design.
Reference Topics: HPE ArubaOS-CX Layer 3 Design - Global Default VRF vs. Custom Tenant VRFs; EVPN-VXLAN Single-Tenant Fabric Routing.
NEW QUESTION # 49
Which feature or capability should be implemented to secure the network?
Answer: C
Explanation:
Hardening network switches against denial-of-service (DoS) attacks, unauthorized reconnaissance, and resource exhaustion requires protecting the switch control plane. In ArubaOS-CX switching platforms, network management and control plane traffic (such as SSH, SNMP, BGP, OSPF, and NTP) terminates on the internal switch supervisor CPU.
To safeguard the CPU from malicious flood attacks, spoofed control traffic, and unauthorized access attempts, the architect must specify Control-Plane Access Control Lists (CoPP / Control-Plane ACLs). Control-Plane ACLs filter inbound traffic destined specifically for the switch ' s local IP addresses, permitting authorized administrative management subnets and recognized routing peer IPs while silently dropping unauthorized packets at the hardware ASIC layer before they reach the switch CPU.
Conversely, attaching a Bluetooth dongle introduces an unnecessary wireless physical attack vector; VSF stacking is a campus aggregation technique unsuitable for data center spines; and disabling the REST API cripples modern automation, telemetry, and programmatic fabric operations without providing foundational control-plane filtering.
Reference Topics: HPE ArubaOS-CX Security Architecture - Management and Control Plane Hardening; Control-Plane Access Control Lists (CoPP/ACLs).
NEW QUESTION # 50
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