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A campus network uses two AOS-CX core switches configured as a VSX pair providing default gateway redundancy for multiple VLANs. During a maintenance window, an engineer reloads the secondary VSX member. After the reload, several downstream access switches report intermittent loss of connectivity to VLAN 20 despite the primary member remaining fully operational.
Which condition is the most likely root cause of this behavior?
If the VSX keepalive link fails at the same time as a member reload or link flap, both switches can transition to primary role, leading to duplicate active gateway forwarding and MAC/ARP inconsistencies that manifest as intermittent VLAN connectivity loss. LACP fallback, ISL trunking misconfiguration, and mismatched active gateway MACs would produce different, more immediate and consistent failure symptoms rather than intermittent loss tied to a reload event.
A customer wants wired clients authenticating with 802.1X using EAP-TLS to fail open to a limited guest VLAN if ClearPass is unreachable, while still enforcing full certificate validation when ClearPass is available. During testing, when the RADIUS server is intentionally taken offline, clients are dropped into an unauthorized state instead of the guest VLAN.
What is the most likely missing configuration on the AOS-CX access switch port?
To allow clients to fail into a guest VLAN when all configured RADIUS servers are unreachable, the switch port must have the critical-authentication (also called auth-server-down or critical VLAN) feature configured to assign a specified VLAN when authentication cannot be performed. Without this, the port simply remains unauthorized. Downloadable roles, MAC-Auth fallback, and timeout tuning do not address the auth-server-down scenario.
An engineer is designing a Layer 3 campus core using OSPF across three AOS-CX distribution switches interconnected in a triangle topology, each also connecting to separate access-layer stacks. The customer requires sub-second failover if any single link or device fails, without deploying MPLS or requiring a full mesh of BGP peerings.
Which combination of features best meets this requirement?
Bidirectional Forwarding Detection (BFD) paired with OSPF provides fast link/neighbor failure detection (often in the tens of milliseconds), enabling sub-second reconvergence, while ECMP allows load sharing and instant failover across the multiple equal-cost paths inherent in the triangle topology. Default OSPF timers alone are too slow for sub-second failover. Static routes and RIP do not meet modern convergence or scalability needs, and virtual links are unnecessary since the physical topology already provides connectivity.
A customer deploys Aruba APs in local (bridge) mode across a campus using multiple VLANs for corporate SSIDs. Users on the 5 GHz band in a high-density lecture hall report sporadic slow throughput despite strong signal strength (-55 dBm) and low client counts on any single AP. The design used a fixed channel width of 80 MHz throughout the building on overlapping AP coverage cells.
What is the most likely cause of the throughput issue?
In high-density deployments, using wide channels such as 80 MHz drastically reduces the number of available non-overlapping channels, increasing co-channel interference between adjacent AP cells even when signal strength is strong. This commonly causes contention and reduced throughput despite low client counts per AP. The other options do not align with the described symptoms of strong signal but poor throughput tied to channel planning.
A security team wants to enforce dynamic segmentation using Aruba Dynamic Segmentation with User-Based Tunneling so that authenticated wired and wireless clients are assigned to Client Match user roles that map to VLANs and firewall policies centrally, minimizing VLAN sprawl across access switches. This design relies on ClearPass Policy Manager pushing enforcement profiles to gateways rather than switches maintaining static per-VLAN ACLs.
Which statement about this design is correct?
Dynamic Segmentation with User-Based Tunneling tunnels client traffic from the access layer (switch port or AP) to a centralized gateway where role-based policy enforcement occurs, decoupling policy from the local VLAN and reducing the need for per-switch VLAN/ACL sprawl. It supports both wired and wireless clients and still relies on ClearPass for role assignment and policy definition, not local switch role duplication.
70 questions covering all exam domains, starting from $20
Exam domains verified against: Official HP HPE7-A06 exam guide, last checked September 2026.
Analyze customer network issues and troubleshoot problems. Understand how components of a network stack interact and identify failures quickly.
Develop configurations based on customer requirements and apply advanced networking architectures. Identify design problems and troubleshoot device deployment scenarios.
Design and troubleshoot mechanisms for resiliency, redundancy, and fault tolerance. Implement solutions that maintain service continuity in campus networks.
Sample question from this domain above: Q1
Implement, troubleshoot, and remediate Layer 2 and 3 switching including broadcast domains and interconnection technologies. Work with VLAN tagging and switch port configurations.
Design and troubleshoot RF attributes and wireless functions for campus networks. Build configurations based on customer requirements and implement Layer 2 interconnection.
Sample question from this domain above: Q4
Design and troubleshoot routing topologies and functions across campus networks. Understand how routing decisions affect network performance and convergence.
Sample question from this domain above: Q3
Design and troubleshoot security implementation in customer networks. Work with wired 802.1X, EAP-TLS authentication, and Group Based Policy configurations.
Sample question from this domain above: Q2
Design and troubleshoot AAA configurations based on customer requirements. Create and analyze ClearPass integration with campus access infrastructure.
Sample question from this domain above: Q5
Perform advanced troubleshooting and remediation of campus network problems. Use diagnostic tools and methodologies to resolve complex issues.
Analyze and remediate performance issues in campus networks. Identify bottlenecks and optimize configurations for throughput and latency.
Common questions about the exam itself
