3.1 Demonstrate Understanding of Device-Level Statistics Monitoring SD-WAN-ENGINEER Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   An SD-WAN tunnel is experiencing intermittent connectivity. Which device-level statistic would be most useful to correlate with the outages?

   • ACPU usage
   • BInterface error counts
   • CSession table usage
   • DTunnel uptime
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   An SD-WAN engineer needs to quickly view the current CPU and memory utilization of a firewall, as well as the real-time throughput on the SD-WAN tunnels, without leaving the dashboard. Which PAN-OS web interface feature should the engineer use?

   • AThe Dashboard's 'Device Utilization' widget and the 'SD-WAN' widget.
   • BThe Device > Setup > Operations page.
   • CThe Network > SD-WAN > Rules page.
   • DThe Monitor > Network > Interfaces page.
   Reveal Solution Discussion Select an answer first
4. 8expert · hard

   A site is experiencing intermittent connectivity to a critical application. The engineer checks the SD-WAN tunnel statistics and sees: tunnel 1 (MPLS) has 0.1% packet loss and 30 ms latency; tunnel 2 (broadband) has 0.8% packet loss and 80 ms latency. The interface statistics for the broadband link show 5% input errors and 2% output errors. The application is sensitive to packet loss. Which action should the engineer take?

   • ASwitch all traffic to tunnel 1 (MPLS) and disable tunnel 2.
   • BInvestigate the broadband interface for physical-layer issues, such as cabling or duplex mismatch, before adjusting SD-WAN policies.
   • CIncrease the broadband link's bandwidth to reduce packet loss.
   • DConfigure the SD-WAN policy to prefer tunnel 1 for all traffic and keep tunnel 2 as a backup.
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   An engineer needs to view the real-time throughput and packet loss for all SD-WAN tunnels on a firewall. Which PAN-OS web interface page should the engineer navigate to?

   • ADevice > Dataplane > SD-WAN
   • BMonitor > Network > Interfaces
   • CNetwork > SD-WAN > Rules
   • DMonitor > Network > SD-WAN
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   An engineer is reviewing the interface statistics for a WAN link and sees that the output discards counter is increasing rapidly while the input discards counter remains at zero. The link is not congested. What is the most likely cause of the output discards?

   • AThe link is experiencing physical-layer errors.
   • BThe remote device is sending more traffic than the interface can handle.
   • CThe local device is dropping packets before they are transmitted due to a policy or buffer issue.
   • DThe service provider is dropping packets due to policing.
   Reveal Solution Discussion Select an answer first