5.2 Demonstrate Understanding of Routing and Forwarding Issue Resolution SD-WAN-ENGINEER Practice Questions (Page 5)

Questions 21–22

1. 21foundation · easy

   What is the purpose of validating routing and forwarding policies in an SD-WAN?

   • ATo ensure policies are not causing unintended traffic behavior
   • BTo change the IP addressing scheme
   • CTo update the firmware of the routers
   • DTo increase the bandwidth of the links
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   A branch site has two WAN links: MPLS (primary, SLA 50ms) and broadband (backup, SLA 150ms). Users report that VoIP calls to headquarters are experiencing jitter, even though the MPLS link is up. You check the SD-WAN path selection dashboard and see that VoIP traffic is being sent over the broadband link. The MPLS link has an SLA of 45ms and 0% loss. What is the most likely cause of this behavior?

   • AA route leak from the broadband link is injecting a more specific prefix into the routing table.
   • BThe broadband link has a higher bandwidth, so the SD-WAN is load-balancing VoIP across both links.
   • CThe VoIP application's path selection policy is configured to prefer the broadband link, overriding the SLA-based default.
   • DThe MPLS link's SLA is being measured incorrectly because the probe packets are being dropped by an intermediate firewall.
   Reveal Solution Discussion Select an answer first