Easy, general questions about character and personality. Past experiences. No specific technical questions or coding exercise. Over all easier than some other interviews I had in the past. The company is in the general aviation

They had the longest interview process for no apparent reason. 1) Interview with the HR 2) Technical with a lead about past work experience. 3) Behavioral/ Technical with Manager. 4) Onsite on campus interview The onsite interview was all over the place. They weren't organized a bit. They had planned 5 interviews out of which three people were technical and 2 were HR/Manager. Out of 3 technical interview 2 didn't show up for the interview, so I had to zoom with one after going back home and the other one cut the zoom meeting in half. The three people onsite were the people I had already talked to before onsite, so all those conversations went very well. During the interview with the guy on zoom, I wasn't able to answer one question related to a term, but everything else went amazing. When I was leaving, they made it seem like that it was a done deal. After onsite, I was sent a cognitive and behavioral test, so it gave me a confirmation that the onsite went well that's why they wanna test further. Then after 2 days they call to tell me that everything was good, just that the I wasn't able to answer the definition to the term . This whole process was frustrating because I spent way to much time for this, and if that one term or concept was so crucial for the hiring decision, then why not do that first . They wasted so much of my time. So unprofessional.