What is an interrupt in the context of a computer system?

As a technical support engineer, you are expected to be intimately familiar with how a computer system functions. You should know about each component, its purpose, and its relationship to the other components. You should also know about the processes used to operate a computer and the common applications users in your organization employ. Refreshing yourself on these technologies and their functions will help you be better prepared. Practicing interview questions like these will also assist you in formulating answers on the fly during the interview.