HPE6-A90 exam questions

1. Question 1

   Single answer

   What is true about the Developer Hub portal?

   • A

     API calls are actively changing the device's configuration.

   • B

     Developer Hub provides sample codes for APIs; no API calls are made from it.

   • C

     API calls are for demonstration only.

   Reveal answer

   Correct answer

   • B

     Developer Hub provides sample codes for APIs; no API calls are made from it.

   Explanation

   The Developer Hub portal is designed to provide documentation, API references, and sample code examples to help developers understand how to interact with the platform. It does not execute API calls against live infrastructure, so it is used for learning and development purposes rather than performing actual configuration changes.

2. Question 2

   Single answer

   Operations want a visual of active wired ports and link speed.

   Which HPE Aruba Networking Central view provides this at a glance?

   • A

     Hardware card in the switch dashboard

   • B

     Wired Interfaces card (faceplate)

   • C

     Health card in the switch dashboard

   Reveal answer

   Correct answer

   • B

     Wired Interfaces card (faceplate)

   Explanation

   The Wired Interfaces card (faceplate view) provides a real-time visual representation of switch ports, showing active interfaces, link status, and negotiated speeds at a glance, making it the most suitable view for quick operational insight.

3. Question 3

   Single answer

   You are creating a new WPA3-Enterprise SSID.

   What is required to complete the configuration?

   • A

     Primary authentication server

   • B

     VLAN assignment Rules

   • C

     WPA3 Transition Mode

   Reveal answer

   Correct answer

   • A

     Primary authentication server

   Explanation

   WPA3-Enterprise requires integration with an external authentication mechanism such as a RADIUS server to validate user credentials. Defining a primary authentication server is essential to enable secure 802.1X-based authentication for clients connecting to the SSID.

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5. Question 4

   Single answer

   A guest SSID must isolate clients from internal networks.

   Which configuration achieves this?

   • A

     Assign a guest access role with restrictive policy

   • B

     Use a mixed SSID where guests are bridged and employees are tunneled to the gateway

   • C

     Guest networks must belong to a separate VRF to ensure traffic isolation

   Reveal answer

   Correct answer

   • A

     Assign a guest access role with restrictive policy

   Explanation

   Assigning a guest access role with a restrictive policy enforces client isolation and limits access to internal resources. This role-based policy control is the standard method in HPE Aruba Networking Central to ensure guest users are restricted to internet-only access while being blocked from internal networks.

6. Question 5

   Single answer

   Clients report brief outages overnight.

   Which dashboard element helps correlate events with time windows to identify root cause?

   • A

     Events card filtered by time via the timeline widget

   • B

     Connectivity card with static neighbor count

   • C

     Licenses card with subscription expiration date

   Reveal answer

   Correct answer

   • A

     Events card filtered by time via the timeline widget

   Explanation

   The Events card combined with the timeline filter enables correlation of network events against specific time windows. This helps identify patterns such as brief outages and align them with system logs or environmental changes to determine root cause.

7. Question 6

   Single answer

   How does HPE Aruba Networking Central's AI contribute to predictive maintenance and performance tuning?

   • A

     By detecting anomalies, identifying root causes, and recommending proactive actions to prevent network issues.

   • B

     By only generating proactive troubleshooting tickets for IT staff.

   • C

     By automatically opening hardware replacement tickets without human intervention.

   Reveal answer

   Correct answer

   • A

     By detecting anomalies, identifying root causes, and recommending proactive actions to prevent network issues.

   Explanation

   The AI capabilities in HPE Aruba Networking Central analyze telemetry data to detect anomalies, correlate symptoms across the network, and identify likely root causes. It also provides proactive recommendations to help prevent service degradation, enabling predictive maintenance and continuous performance optimization.

8. Question 7

   Single answer

   A site requires a common syslog target and NTP server for all switches.

   Which HPE Aruba Networking Central configuration approach reduces duplicated effort?

   • A

     Create shared NTP and source interface profiles at the site level.

   • B

     Create NTP and source interface profiles at the device group level.

   • C

     Create a shared access switch profile at the site collection level.

   Reveal answer

   Correct answer

   • A

     Create shared NTP and source interface profiles at the site level.

   Explanation

   Defining shared NTP and syslog-related settings at the site level in HPE Aruba Networking Central ensures consistent configuration across all switches within that site while avoiding repetitive per-device configuration. Site-level profiles are designed for common services like time synchronization and logging targets, improving operational efficiency and standardization.

9. Question 8

   Single answer

   A guest SSID requires captive portal access.

   Which setting enables this in HPE Aruba Networking Central?

   • A

     Apply Guest role to all users with ClearPass

   • B

     Configure captive portal under the WLAN profile

   • C

     Set security level to Guest under WLAN profile

   Reveal answer

   Correct answer

   • B

     Configure captive portal under the WLAN profile

   Explanation

   Captive portal access for a guest SSID is enabled by configuring the captive portal settings within the WLAN profile in HPE Aruba Networking Central. This defines how users are redirected for authentication and how access is granted after successful login.

10. Question 9

    Single answer

    Users report intermittent drops on the corporate SSID.

    Which HPE Aruba Networking Central tool helps isolate authentication failures?

    • A

      Client Event log

    • B

      AI Insight for AP load

    • C

      Topology map view

    Reveal answer

    Correct answer

    • A

      Client Event log

    Explanation

    The Client Event log provides detailed authentication and association history for individual clients, including failures, reauthentication attempts, and disconnect reasons. This makes it the most effective tool for isolating intermittent SSID drops caused by authentication issues.

11. Question 10

    Single answer

    During testing of a new WPA3-Enterprise SSID, clients are failing to connect.

    Which should you verify first?

    • A

      Pre-shared key configuration

    • B

      Captive portal configuration

    • C

      EAP-TLS certificate configuration

    Reveal answer

    Correct answer

    • C

      EAP-TLS certificate configuration

    Explanation

    WPA3-Enterprise relies on 802.1X authentication using EAP methods, and in many deployments EAP-TLSis used, which requires valid and trusted certificates on both client and authentication server side. Ifcertificates are missing, invalid, or not trusted, clients will fail to authenticate and connect.

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