Since this is a technical question, your answer should be brief and to the point. Candidates who spend too much time defining a specific term risk not allowing the interviewer enough time to ask all their questions. A common adage states the person who speaks the most during an interview loses the advantage. Your goal should be to keep the interviewer talking, asking you questions, and answering the questions you ask them. This will help the interviewer perceive you as knowledgeable in the subject matter and well qualified for the job they are interviewing you for.
