Varun's response is not relevant to the question asked. The interviewer requested a discussion on a specific experience with optimizing a SQL/NoSQL database for high-velocity data, including the strategies employed. Varun's one-word response does not provide any information on his experience, knowledge, or the technical strategies he has used in past projects. Varun should provide a detailed account of a relevant project, including the challenges faced, the optimization techniques applied, and the results achieved.