Caterpillar Software Developer interview questions

Fairly basic, started of with OOPS, SQL asked about known concepts in OOPS and basic queries in SQL. Stages in development of Android and web applications. How do you host a website etc.

Applied through career fair got call two weeks for the first round interview. After a month, got a seocond round interview request. (More like forced interview since the HR manger never replied to my rescheduling email). Told I would get a result within two days. Then Igot ghosted. So, I moved on and got another position. Later I got a call that I got the position. It was so random. Interviews were hard and very stressful. Asked behavioral questions first then grilled me on technical questions