Database Systems

1) What is preemption? What is its purpose? (0.5 points)

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 ULT’s vs KLTs. (0.5 points)

6) List 2 advantages of KLT’s vs ULTs. (0.5 points)

7) List 2 key design issues for an SMP operating system. (0.5 points)

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