3.1 Demonstrate Understanding of Device-Level Statistics Monitoring SD-WAN-ENGINEER Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   When monitoring interface statistics on a PAN-OS device, which metric indicates the percentage of available link capacity being used?

   • APacket count
   • BBandwidth utilization
   • CError rate
   • DDiscard count
   Reveal Solution Discussion Select an answer first
2. 22expert · hard

   An engineer is troubleshooting intermittent application timeouts across an SD-WAN tunnel. The tunnel statistics show an average latency of 50 ms, jitter of 5 ms, and 0.2% packet loss. The engineer runs 'show interface ethernet1/1' and sees 0 errors and 0 discards. However, the engineer notices that the dataplane CPU spikes to 90% during the timeouts. Which conclusion is most accurate?

   • AThe tunnel latency is too high for the application.
   • BThe tunnel is experiencing packet loss due to a physical-layer issue.
   • CThe dataplane CPU spikes are causing the timeouts by dropping packets.
   • DThe jitter is causing the timeouts.
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   An engineer is troubleshooting a link that is experiencing intermittent drops. The engineer runs 'show interface ethernet1/3' and sees the following: input errors 1,200, output errors 0, input discards 0, output discards 0, and the interface is up. What is the most likely cause of the drops?

   • AThere is a physical-layer issue on the receive path, such as a faulty cable or SFP.
   • BThe link is congested and packets are being dropped.
   • CThe remote device is sending malformed packets.
   • DThe interface is configured with the wrong speed or duplex settings.
   Reveal Solution Discussion Select an answer first
5. 24foundation · easy

   Which of the following is NOT a device-level statistics source in PAN-OS for SD-WAN?

   • ATunnel statistics
   • BInterface counters
   • CApplication usage reports
   • DSystem resources
   Reveal Solution Discussion Select an answer first
6. 25application · medium

   A firewall is experiencing high latency for management connections. The engineer checks the system resources and sees: dataplane CPU at 20%, management plane CPU at 95%, memory at 60%, and session table at 30%. Which component is most likely causing the issue?

   • AThe dataplane is overloaded.
   • BThe management plane is overloaded.
   • CThe session table is nearly full.
   • DThe memory is insufficient.
   Reveal Solution Discussion Select an answer first