It is among the important software test engineer interview questions. In software testing, smoke testing refers to the process of determining whether a particular software build has made it into production or not. The purpose of smoke testing is to confirm that the QA team is in a position to get started with further software testing. In order to ensure that the software functionalities of each build are tested, a minimal set of tests is run on each build. Often, smoke testing is also referred to as "build verification testing," "confidence testing," or a combination of these terms. Benefits Quick and easy way to identify any problems with an application before they are released into production. Risks associated with integration are minimized. Improved quality of the end product. Diagnostics and corrections of errors are simplified. It is easy to measure progress. It can help prevent bugs from going into production, saving time and money.