friend of mine few years ago was told by his manager to have a certain amount of points under the Java tag (and other related ones) for him to get promoted to s

friend of mine few years ago was told by his manager to have a certain amount of points under the Java tag (and other related ones) for him to get promoted to senior developer. I remember him telling me he spent like 2 weeks just answering questions like 3-4 hours a day so he can show that he knows obscure Java stuff