This question addresses a topic that any qualified technical support engineer should be familiar with. During the interview for this role, you will be asked a great number of technical questions. These will range from basic and easy ones to questions that are more complex and detailed. The interviewer will usually start with easy questions and progress to the more difficult ones. This indicates that they are gaining confidence in your capabilities and are willing to challenge you more. As with any technical question, keep your answer direct and to the point. The interviewer may ask you a follow-up question if they need more information or want to explore the topic in more detail.