HPE7-A05 Sample Questions & Answers
Configuring the solution once it's designed carries the biggest share, ahead of diagnostic troubleshooting, planning the low-level design and bill of materials, monitoring and reporting, installing equipment, maintaining licenses, and system integration.
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- Question 1Intermediate
Plan the Low-Level Design · Validate the Bill of Materials (BoM)
A customer requires a data center switch solution that provides inline stateful firewall services to implement micro-segmentation for east-west traffic without tromboning traffic to a perimeter firewall. Which HPE Aruba Networking switch series should be proposed?
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Correct answer: D
The CX 10000 Series switches are equipped with the AMD Pensando Distributed Services Module (DSM). This architecture allows the switch to perform inline stateful services (firewall, NAT, encryption, telemetry) directly at the leaf layer, enabling distributed micro-segmentation without the performance penalty of routing traffic to a centralized firewall appliance.
- Question 2Intermediate
Plan the Low-Level Design · Create a low-level design for deployment
During the planning phase for a VSX cluster, the architect must ensure high availability during split-brain scenarios where the Inter-Switch Link (ISL) fails but both switches are still active. Which physical component must be included in the Low-Level Design to support the split-recovery mechanism?
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Correct answer: C
The VSX Keepalive link is a critical component for split-brain detection. It is a dedicated Layer 3 link (often using a 1GbE or 10GbE port) separate from the ISL. If the ISL fails, the keepalive link allows the switches to heartbeat and determine which switch should stay active (Primary) and which should shut down its VSX LAG member ports (Secondary) to prevent loops.
- Question 3Advanced
Plan the Low-Level Design · Create a low-level design for deployment
An organization is planning to deploy a multi-site EVPN-VXLAN fabric. They need to extend Layer 2 segments between two data centers over an IP WAN. Which routing component is required on the Border Leaf switches to facilitate the exchange of EVPN prefixes between the sites?
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Correct answer: B
To extend EVPN fabrics across a WAN (DCI), Border Leaf switches (or spines acting as border gateways) must peer via eBGP (typically) using the L2VPN EVPN address family. This allows them to exchange Type-2 (MAC/IP) and Type-5 (Prefix) routes between the separate fabric autonomous systems, enabling end-to-end VXLAN tunnels.
- Question 4Beginner
Plan the Low-Level Design · Assess whether physical space and data center infrastructure support the intended solution
You are designing the physical layout for a new row of racks. Each rack will contain 40 servers. You plan to use a Top-of-Rack (ToR) design with a pair of CX 8360 switches in a VSX cluster per rack. What is a critical cooling consideration for the switch placement?
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Correct answer: C
Data centers typically use a hot-aisle/cold-aisle configuration. Switches mounted at the top of the rack (ToR) are usually installed in the rear (hot aisle) to simplify cabling to server NICs. Therefore, they typically require Power-to-Port (Reverse) airflow to pull cold air from the front of the rack (cold aisle) and exhaust it into the hot aisle, matching the servers' airflow. Mismatched airflow causes recirculation and overheating.
- Question 5Advanced
Plan the Low-Level Design · Create a low-level design for deployment
You are creating a Low-Level Design (LLD) for a multi-tenant data center. You need to assign VLANs for 10 distinct tenants, each requiring isolation. Which AOS-CX feature allows you to use the same VLAN ID (e.g., VLAN 100) for different tenants on the same switch while maintaining isolation?
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Correct answer: C
On AOS-CX switches, the VLAN ID namespace is global to the switch. You cannot reuse VLAN 100 for Tenant A and Tenant B on the same physical switch, even if they are in different VRFs. You must assign unique local VLAN IDs (e.g., VLAN 100 for Tenant A, VLAN 200 for Tenant B) and map them to the appropriate Tenant VNIs in the VXLAN overlay. The isolation happens at the VNI/VRF level, but the local VLAN ID resource is shared.
- Question 6Intermediate
Install the Solution · Stage the network equipment
You are preparing to install a CX 8325 switch using Zero Touch Provisioning (ZTP). The switch has been racked, cabled to the management network, and powered on. The DHCP server is configured to provide the ZTP boot file. Which specific DHCP option must be configured on the DHCP server to inform the switch of the location (URL) of the configuration file or script?
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Correct answer: B
For ZTP on AOS-CX, DHCP Option 67 (Bootfile Name) is used to specify the URL (HTTP/TFTP) or filename of the configuration script or firmware image. Option 66 (TFTP Server Name) is often used in conjunction, but Option 67 specifically points to the file resource.
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