5.1 Explain the Process of Troubleshooting Connectivity Issues Between Sites SD-WAN-ENGINEER Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   A site-to-site connectivity issue is reported. The SD-WAN fabric shows both links are up, but traffic intermittently drops. Which symptom is most likely to indicate a packet loss or quality issue rather than a complete outage?

   • AThe remote site cannot ping the hub's management interface.
   • BPing tests show high latency and occasional timeouts, but the tunnel stays up.
   • CThe tunnel status shows 'down' for both links.
   • DThe routing table on the remote site shows no routes to the hub.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   When troubleshooting a connectivity issue, an engineer notices that traffic to a specific subnet is being sent to the wrong tunnel. Which analysis is most likely to reveal the cause?

   • AReviewing the DHCP lease information
   • BChecking the interface MTU settings
   • CComparing the routing table entries and the SD-WAN path selection rules
   • DExamining the DNS resolution for the destination
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   After troubleshooting, you determine that a branch site cannot reach the data center because the SD-WAN appliance is preferring a high-cost link that is experiencing packet loss. You change the path selection policy to prefer the lower-cost, more reliable link. What is the NEXT step to validate the fix?

   • AOpen a ticket with the ISP to confirm the new link is stable.
   • BCheck the routing table on the data center appliance to ensure it has a route back to the branch.
   • CReboot the branch appliance to ensure the new policy takes effect.
   • DVerify that the tunnel over the preferred link is up and then run an end-to-end connectivity test from a user workstation.
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   An engineer is troubleshooting a connectivity issue between two sites and wants to pinpoint where packets are being dropped. Which command is most appropriate for this purpose?

   • Aping
   • Bshow interface
   • Ctraceroute
   • Dshow ip route
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6. 10expert · hard

   After implementing a fix for a branch site's connectivity issue, you want to ensure the fix is effective and does not introduce new problems. Which approach is the MOST comprehensive validation?

   • ARun a single ping from the branch appliance to the data center.
   • BCheck the routing table on the branch appliance.
   • CReboot the branch appliance to ensure the fix is applied.
   • DRun end-to-end connectivity tests from multiple users and monitor tunnel statistics over a period of time.
   Reveal Solution Discussion Select an answer first