Caching is a technical strategy that enables cloud engineers to improve the performance of the systems they architect and manage. Any competent cloud engineer should be able to describe the advantages and benefits of caching and how they use it in their daily activities. Interviewers will ask questions like this throughout the interview to test your knowledge and experience and ensure that you are qualified for a cloud engineer's job. Reviewing the technologies you use, and even some of the ones you use infrequently, will prepare you for the interview and help to ensure that you will be offered the role.