Accenture interview question

I applied for model based developer(MBD) role with matlab simulink and stateflow. Interviewer asked me basic questions about simulink and stateflow and some c langauge questions as well 1. Diff between enabled and triggered subsystem 2. What are macros in c 3. What are static functions in c 4. Difference between virtual and non virtual bus in simulink 5. Difference between sample time and step size 6. Different types of work spaces in matlab