It makes me crazy when I interview someone who has five or more years as a DBA, but they don’t know the difference between a block and a deadlock. It’s a complete showstopper for me. If you don’t know this, you’re an entry-level DBA, don’t talk to me about your years of experience. Sorry, but there it is.
Here’s someone that’s kinder than I am in every way. Not only have they cut people slack on this question, but he’s provided a well done answer to the question. For those who may interview with me in the future, go and read this and understand it.