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| Section | Objectives |
|---|---|
| Topic 1: Implementation and Deployment Planning | - Solution Validation
|
| Topic 2: Designing HPE Aruba Networking Data Center Solutions | - Requirements Discovery and Analysis - Data Center Network Architecture Design
|
| Topic 3: Operations and Optimization | - Lifecycle Management - Monitoring and Troubleshooting |
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NEW QUESTION # 39
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.
What are valid assumptions that can be made for this scenario when creating the network design documentation? (Choose two.)
Answer: C,E
Explanation:
It is valid to document assumptions that sufficient virtualization resources will exist for required software and that sufficient inter-site cabling will be available for the design.
NEW QUESTION # 40
Waratah Hospital, located in Australia, plans to relocate many data-center services to a new facility. (The remaining legacy data center is not included in this project.) Waratah Hospital has engaged an external consultant to help design the new data-center network.
Based on the data-center network-infrastructure requirements, the external consultant has produced a high- level design. The design document is summarized below.
Requirements and information:
Six racks in the data-center room (a single row).
Redundant top-of-rack leaf switches with back-to-front cooling in every rack, providing 10/25 Gbps connectivity to servers, storage, and other devices.
Four 100 GbE uplinks per leaf switch.
The customer requested that all switch ports face the rear of the rack racks (hot aisle).
OOB management for servers, storage, and network devices must be provided through an external switch with back-to-front cooling. This switch must 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 must connect to the hospital building through links providing 400 Gbps.
Internet access is provided through an existing firewall cluster containing two firewalls, with one firewall in each data room. The second firewall operates in standby mode, and VRRP is used on the firewalls for failover. The data-center network must connect to these firewalls through links totaling 100 Gbps.
The external link is a direct dark-fiber link based on single-mode fiber (OS2). The distance to the main hospital is 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 must be minimized.
Software upgrades are allowed only once per year, with close to zero downtime.
All life-critical resources are accessed locally, and all resources reside within the hospital campus.
Waratah Hospital requires a highly secure data-center environment. Encrypted wire-speed connectivity between the data room and the hospital is mandatory 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 experienced a security breach that resulted in data loss, network downtime, and identity theft.
Refer to the scenario. A junior colleague recommends deploying CX 8325-32C BF 6F 2AC Bundle switches as border leaf switches. What concern should you raise about this plan?
Answer: B
Explanation:
Evaluating physical switch hardware against mandatory customer requirements is a core function of the lead certification architect. In the Waratah Hospital scenario, the border leaf tier must fulfill two explicit technical constraints for the interconnect to the main hospital: delivering 400 Gbps of aggregate bandwidth and providing hardware-based wire-speed encryption because the dark fiber spans a public roadway.
The CX 8325-32C BF switch provides 32 ports of 40/100 GbE (QSFP+/QSFP28) with back-to-front (port-to- power) airflow. While its port count and airflow are compatible with general rack requirements, the CX 8325 platform does not feature native 400 GbE interfaces, nor does it integrate hardware MACsec (IEEE 802.1AE) encryption engines on its high-speed ports.
Consequently, the CX 8325-32C cannot satisfy the mandatory 400 Gbps encrypted link requirements to the hospital core switches. The architect must reject the junior colleague's proposal and instead specify the Aruba CX 9300-32D / CX 9300S platform, which natively delivers 400 GbE QSFP-DD interfaces with integrated line-rate MACsec capability.
Reference Topics: HPE Aruba CX Switching Architecture - CX 8325 vs. CX 9300 Capabilities; Line-Rate MACsec and 400 Gbps Transport Requirements.
NEW QUESTION # 41
You are modernizing a customer's legacy three-tier architecture with an L3 spine and leaf topology. The CX switches in the topology will provide the overlay. The customer data center uses six VRFs. The customer has asked for service leaf switches to connect to two clustered firewalls, which route and filter traffic between the VRFs. How can you maximize the efficiency of the traffic flow between subnets in the same VRF?
Answer: D
Explanation:
For traffic between subnets in the same VRF, distributed L3 anycast gateways allow routing directly at the leaf switches, avoiding inefficient hairpinning through centralized firewalls. The firewalls should be used for routed/filtering traffic between VRFs.
NEW QUESTION # 42
When you create an endpoint group in Aruba Fabric Composer, which option should you choose in the Endpoints section to protect the hypervisor?
Answer: C
Explanation:
Aruba Fabric Composer (AFC) provides deep, automated integration with virtualization platforms, prominently VMware vSphere. When orchestrating network policies, microsegmentation, and security enforcement at the switch fabric layer (such as with the Aruba CX 10000 Distributed Services Switch), AFC utilizes Endpoint Groups (EPGs) to categorize and bind policies to logical entities.
Within VMware vSphere, the hypervisor ' s management functions, storage paths (iSCSI/NFS), and clustering synchronization do not terminate on standard virtual machine interfaces (VNICs); instead, they reside on VMkernel adapters (vmk interfaces). The VMkernel networking layer handles vital control plane operations, including ESXi management connectivity, vMotion migration traffic, and Virtual SAN (vSAN) replication.
To apply granular firewall filtering, QoS bandwidth guarantees, and policy protection specifically to the hypervisor itself-rather than to tenant workloads-the architect must configure the Endpoint Group by selecting " VM Kernel Adapter " in the Endpoints classification section. Selecting VM Tag, VNIC, or VM Name applies policies exclusively to individual guest virtual machine workloads, leaving hypervisor management and storage pathways outside the intended protective policy scope.
Reference Topics: HPE Aruba Fabric Composer - VMware vSphere Integration; Configuring Endpoint Groups (EPGs) for Hypervisor and VMkernel Protection.
NEW QUESTION # 43
You are designing an L3 spine and leaf topology that uses CX switches. Those switches implement EVPN VXLAN with a distributed gateway model. You are helping implementers to assemble a list of required loopback interface IDs and IP blocks. What information do you need from the customer to complete this list?
Answer: B
Explanation:
The choice of single-AS versus dual-AS affects the BGP control-plane configuration and AS numbering, not principally the required loopback inventory. Distributed-gateway designs can require dedicated per-VRF loopback addressing for services such as DHCP relay and unique source addressing. HPE also recommends planning an IP block for the loopbacks assigned to each overlay VRF.
NEW QUESTION # 44
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