Windows: What is Active directory? What is Group policy? What is least privilege? Networking: What are the 7 seven layers of the OSI model and what is it used for? What is STP? How is a loop created? Linux: How do you change directories? How do you list folders/files of a directory? What is grep? What is the difference between su and sudo? Behavioral questions: (Used STAR method to answer these) Tell me how you dealt with a difficult customer? Tell me why you should help out a teammate who is struggling with something?