An interviewer will ask you about the tools you use to see if they are the same tools their organization uses. Hopefully, you have done your research and learned about the company's processes and procedures before the interview. This should allow you to learn about what tools they use and whether the ones you are familiar with are the same. If the tools you use are different, this may be an opportunity to demonstrate your ability to improve the organization's operations. You should ask the interviewer a clarifying question before suggesting any improvements to see if they are open to this.