Not trying to feel self important, I'm saying why I'm not hiring bootcamp people anymore. I could go through a litany of topics from OS, algorithms, networking, architecture, languages... if you are a magic box programmer, don't be shocked if I ask you how the magic box works and you have no clue.
Um. You do know that a lot of folks manage to graduate with a degree and basically have only ever programmed in one language like Java and wouldn't recognize a unit test, build system, or a version control system if it bit them, right?
Not to mention starting every task with implementing a linked-list or sorting algorithm from scratch.