Refer to the exhibits.

The SD-WAN event log shows member 1 transitioning out of SLA. The member diagnostics identify member 1 as port1 and member 2 as port2. The service ' s priority list places port1 before port2, so a properly eligible port2 would be the next forwarding choice when port1 no longer meets the required threshold. This makes option B the intended answer. However, the screenshots do not independently establish port2 ' s current SLA pass state and the complete effective service selection conditions at the instant of the event. A single member ' s out-of-SLA log is insufficient to prove that port2 is healthy, reachable for the destination and selected immediately after the event. Option A is not a universal consequence of one SLA failure; option C incorrectly assumes port1 remains eligible; option D is not proven either because the configuration is not shown to be in a multi-member load-balancing state. To verify B, inspect ' diagnose sys sdwan service4 1 ' and the health-check status after the event, confirming member 2 is selected and destination-route eligible. The item is conditionally supported, not fully established by the current exhibit alone.

Verification qualification: Port2 must be shown operational and in SLA; the exhibit alone does not prove that state.