2) What is swapping? What is its purpose? (0.5 points) 3) Name 5 major activities of an OS with respect to process management. Why is each required? (0.4 points each) 4) Why is a mode switch between threads cheaper than a mode switch between processes? (0.5 points) 5) List 2 advantages of ULTs vs KLTs. (0.5 points) 6) List 2 advantages of KLTs vs ULTs. (0.5 points) 7) List 2 key design issues for an SMP operating system. (0.5 points)