Univ Hire: training and rampup process

Hey.. I was wondering how any of you as a univ hire got your training on your team. Were you given a overview by your manager? Or a dedicated buddy/mentor? Or bunch of people from the team who deal with specific things? Or you had a one-note/wiki/boot camp videos to get ramped up? I guess it would be a combo of several options above but I wanted to know which one played the dominant part. I kinda am facing issues that I were given tasks of which I had no business knowledge about. I kinda went running to people and everyone was kinda saying IDK just read the code. I tried debugging etc but I feel it's not a right way of doing.