Operating System Practice Test 4

1. The CPU hardware has a wire called __________ that the CPU senses after executing every instruction.

2. In real time operating system ____________

3. An I/O port typically consists of four registers status, control, ________ and ________ registers.

4. For real time operating systems, interrupt latency should be ____________

5. If a set of processes cannot be scheduled by rate monotonic scheduling algorithm, then __________

6. The kernel data structures include ____________

7. Which algorithm can be optimized to meet the timing deadlines and rate requirements of continuous media?

8. Preemptive, priority based scheduling guarantees ____________

9. For large data transfers, _________ is used.

10. The ____________ scheduling algorithm schedules periodic tasks using a static priority policy with preemption.

11. The ______ register is read by the host to get input.

12. If there are a total of T = 100 shares to be divided among three processes, A, B and C. A is assigned 50 shares, B is assigned 15 shares and C is assigned 20 shares.
B will have ______ percent of the total processor time.

13. If there are 32 segments, each of size 1Kb, then the logical address should have ____________

14. Each entry in a segment table has a ____________

15. The scheduler admits a process using __________

16. Buffering is done to ____________

17. A process P1 has a period of 50 and a CPU burst of t1 = 25, P2 has a period of 80 and a CPU burst of 35. The total CPU utilization is ____________

18. Windows NT uses a __________ implementation for I/O.

19. In rate monotonic scheduling ____________

20. When there is a large logical address space, the best way of paging would be ____________