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| Section | Weight | Objectives |
|---|---|---|
| Lossless and AI-Optimized Networking | 15% | - Advanced transport and optimization
|
| Management, Orchestration and Operations | 10% | - Management architecture and tools
|
| EVPN-VXLAN Overlay Technologies | 25% | - Overlay network design and implementation
|
| Data Center Network Security and Policy | 20% | - Security architecture and policy enforcement
|
| Data Center Network Architecture Design | 30% | - Requirements analysis and solution design
|
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NEW QUESTION # 46
You are upgrading a customer's legacy three-tier architecture to an L3 spine-and-leaf topology. The CX switches in the topology will supply the overlay. The customer data center uses six VRFs. The customer has requested service leaf switches that connect to two clustered firewalls, which route and filter traffic between the VRFs.
How should the service leaf switches be connected to the firewalls?
Answer: D
Explanation:
Connecting an external active/passive or active/active firewall cluster to a pair of ArubaOS-CX Service Leaf switches across multiple isolated tenant routing domains requires balancing physical link resiliency with multi- VRF segmentation.
To eliminate single points of physical failure and avoid spanning-tree blocked ports, the two Service Leaf switches should be configured as a Virtual Switching Extension (VSX) pair. Resilient connectivity to the firewall cluster is established using two multi-chassis Link Aggregation Groups (VSX LAGs)-one dedicated VSX LAG terminating on Firewall 1 and a second dedicated VSX LAG terminating on Firewall 2.
Because the customer data center utilizes six discrete VRFs that require dedicated inspection and inter-VRF routing by the firewalls, Layer 3 Routed-Only Ports (ROPs) cannot be used directly, as a physical ROP binds to only a single VRF instance. Instead, each VSX LAG must be configured as an IEEE 802.1Q trunk carrying one designated transit VLAN per VRF. Within each VRF, an SVI is created on the switches to peer with the corresponding sub-interface or VLAN interface on the firewall cluster, maintaining clean end-to-end traffic separation across all six routing domains.
Reference Topics: HPE Data Center Architecture - Connecting Service Leaves to Firewall Clusters; Multi- VRF Handoffs via VSX LAGs and 802.1Q Trunks.
NEW QUESTION # 47
A customer requires management access to switches over SSH. Which authentication mechanism can be implemented?
Answer: C
Explanation:
Securing administrative management planes in enterprise data centers requires robust, verifiable authentication mechanisms for operator sessions. For administrative console access across Secure Shell (SSHv2), network operating systems such as ArubaOS-CX support industry-standard federated and ticket- based authentication protocols, prominently including Kerberos via the Generic Security Services Application Program Interface (GSSAPI).
When GSSAPI Kerberos authentication is enabled, administrative clients obtain a Ticket Granting Ticket (TGT) from a central Key Distribution Center (KDC, such as Microsoft Active Directory) and authenticate transparently to switch SSH daemons without repeatedly sending raw passwords over the management network.
In contrast, Lightweight Directory Access Protocol over SSL (LDAPS) is widely leveraged for centralized directory queries, but native direct interactive switch SSH shell authentication typically leverages TACACS+, RADIUS, local cryptographic public key exchange, or Kerberos/GSSAPI rather than direct LDAPS binding.
RAPIDS (Rogue Access Point Identification and Detection System) is an Aruba AirWave wireless security feature, and VPN encryption refers to transport-layer encapsulation tunneling rather than an administrative identity authentication protocol.
Reference Topics: HPE ArubaOS-CX Security Architecture - Management Plane Hardening, AAA Services, SSHv2, and Kerberos/GSSAPI Authentication.
NEW QUESTION # 48
A customer is deploying a cluster of twelve servers running AI workloads. Each server has four NVIDIA GPUs connected with NVLink. Each server supports 400 GbE connectivity on up to six ports; however, you can recommend using fewer ports. You have been asked to design a network to for the server's backend AI interconnect. Based on HPE Networking 'ecommendations for this workload, how many CX 9300-32D switches should you propose?
Answer: C
Explanation:
For AI backend interconnects, HPE recommends a rail-optimized design with one 400GbE rail per GPU/NIC path. With 4 GPUs per server, propose 4 CX 9300-32D switches, each serving one rail across the 12 servers.
NEW QUESTION # 49
You are proposing an L3 spine and leaf topology to a customer. The solution consists of four CX
8325-32C switches at the spine and two CX 8325-48Y8C switches in each server rack. For this customer, you are using the leaf switches in a rack to provide the border leaf functionality. The customer's data center is growing and the customer asks you how many total server racks this solution can scale to support. What should you say?
Answer: D
Explanation:
Each CX 8325-32C spine has 32 usable 100G ports. Each server rack has two leaf switches, and each spine needs one connection to each leaf, so each rack consumes 2 ports per spine. 32 ÷ 2
= 16 total racks.
NEW QUESTION # 50
What is a key advantage of an active-active dual-homed server NIC design using VSX/MC-LAG at the access layer compared to active-standby NIC teaming?
Answer: B
Explanation:
Active-active dual-homing (via VSX/MC-LAG) allows both server uplinks to forward traffic simultaneously, increasing available bandwidth and providing sub-second failover compared to active-standby teaming, where one link sits idle.
NEW QUESTION # 51
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