This seems like a simple enough question, but it is more like a trick question. Many interviewees, either due to anxiety, or because of the overconfidence that comes from being asked such a simple question, mess this up by missing out an important step of the process. Think this out carefully, remember everything that you have been taught or have done and then answer this question slowly and methodically, convincing your interviewers that you can handle a situation under pressure well. Attention to detail is key in this industry, as well as following a brief accurately.