My question involves a background check in the State of: Washington

I was charged with MIP: 2b and had the sentence deferred and completed the deferral process.

I understand that this will most likely show up on a background check, but do I have to answer yes to the question "Have you ever been convicted of any crime?" on a job application?

I guess I don't understand if I have technically been convicted or not. I entered a plea of guilty, but then completed the unsupervised probation, resulting in a dismissal.