You configured an IP SLA UDP-jitter operation targeting a remote non-Cisco server that does not run any IP SLA responder. What is the most likely outcome?

The UDP-jitter operation, like many advanced IP SLA operations, requires an IP SLA responder on the target device to accurately measure metrics such as jitter, latency, and packet loss. Without a responder, the source device cannot properly synchronize timestamps or receive the necessary feedback to calculate these values. Therefore, the operation will fail or produce invalid data. The router will not automatically fall back to ICMP-echo, as UDP-jitter is a distinct operation. It also won't establish a TCP connection, as UDP-jitter specifically uses UDP for its measurements.