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Network Management and Troubleshooting Flashcards

7 cards from real ACP practice questions. Tap to flip, then mark Knew It or Still Learning โ€” missed cards come back until you master them.

Read the first 7 Network Management and Troubleshooting flashcards as text
  1. An Aruba controller shows that an AP is in 'ip-assigned' state but never reaches 'up' state. What is the most likely cause?

    Answer: The PAPI communication between AP and controller is being blocked by a firewall

    PAPI (UDP 8211) must be open between the AP and controller; blocking it prevents the AP from completing its bootstrap beyond ip-assigned.

  2. When using Aruba Central, which feature allows administrators to run CLI commands on multiple APs simultaneously without opening individual SSH sessions?

    Answer: Device Bulk Actions / Remote Console

    Aruba Central's Device Bulk Actions (Remote Console) lets admins execute CLI commands across multiple devices in a single operation.

  3. A network admin notices high retry rates on a 5 GHz SSID. Which Aruba AirMatch or ARM feature should be tuned first to address co-channel interference?

    Answer: Channel and transmit power reoptimization interval

    Reducing the AirMatch/ARM reoptimization interval allows the system to reassign channels and power levels more frequently to resolve interference.

  4. In Aruba ClearPass, which log file is most useful for diagnosing a failed 802.1X authentication attempt?

    Answer: Access Tracker under Monitoring

    Access Tracker in ClearPass provides real-time and historical authentication request details, including failure reasons and policy evaluation steps.

  5. A customer reports that clients connected to an Aruba AP can reach the internet but not internal servers after a VLAN reconfiguration. What should be verified first?

    Answer: AP group SSID VLAN tagging and upstream trunk port configuration

    Mismatched VLAN tagging between the AP/controller SSID profile and the upstream switch trunk port is the most common cause of selective connectivity loss after VLAN changes.

  6. Which Aruba Mobility Controller CLI command displays real-time statistics for a specific client including signal strength, data rate, and frame counts?

    Answer: show ap association

    'show ap association' provides per-client RF statistics including RSSI, data rate, and frame counters from the AP's perspective.

  7. An Aruba controller cluster node is showing 'standby' for all SSIDs unexpectedly. What is the first diagnostic step?

    Answer: Check cluster heartbeat link status and verify the active node is reachable

    A node stuck in standby usually indicates a failed heartbeat link or an active node that is unreachable; verifying connectivity is the correct first step before any remediation.