This article provides a list of common IT support interview questions for 2 to 3 years experienced professionals.
The author suggests going through a comprehensive IT support course, like Google's IT Support Professional certification on Coursera, to revise key concepts required for IT support engineers.
The article mentions that beginners can join the mentioned course to start their career as IT support engineers.
The article also mentions that the author has previously shared interview questions for UNIX, SQL, and Java support engineer positions.