Many years ago at a managed services company, we were interviewing for a new IT support tech. The question I would ask each candidate was: "you have a PC that is not connecting to the network, what do you check first?
We got all kinds of answers. One candidate even said that he would re-compile the drivers from source. Another talked about removing all of the drivers and cleaning up the registry. After days of interviews, we had a candidate that said "I would make sure that the network cable is plugged in". He got the job. George was an awesome tech, and a really intelligent person. We later found out that he authored several books. He also played guitar in a hard rock band on the weekends (you would never guess).