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<=KNEC Diploma in ICT module I Operating systems past paper: November 2013
Explain the circumstances under which each of the following disk system algorithm could be applicable. (6 marks)
(i) first come first served
(ii) shorted seek time first
(iii)SCAN
(i) first come first served
(ii) shorted seek time first
(iii)SCAN
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Questions List:
1. Define each of the following terms as used in computer operating system i)Shell ii)System call iii)Buffer
2. Explain each of the following inter process communication methods i)Semaphore ii)Signal
3. With the aid of a diagram, describe the NTFS file systems
4. Describe single streaming batch processing as used in operating system
5. Lara, database administrator used each of the following file lock mechanism in her design. Explain the results from each lock when enforced i)File lock ii) Write lock
6. Distinguish between coherency and inclusion as used in memory management
7. With the aid of the diagram, Describe each of the following memory allocation techniques: (I) Fixed partitioned allocations (ii) Paged allocation
8. June came across the following file name extension during a lesson. Identify the file type for each extension. (i) .bmp (ii) .xlsx iii).rar iv).exe
9. Jeremy prefer in the online method when storing his company’s file. Outline two reasons for his preference
10. Outline the criteria that could be used when choosing a schedule algorithm for an operating system.
11. Purity prefer the command line user interface over the GUI for her computer. Explain three reasons for this prefers
12. Differentiate between reusable and consumable resources as used in process in inter-process communication
13. Explain three reasons that could cause a process to be suspended
14. list four examples of utility programs used in computers
15. Differentiate between spatial locality and sequential locality as used in memory management:
16. Describe each of the following terms as used in file management (4 mks). (i)Alias file name; (ii)Pathnames;
17. Joss used the RAID and disk caching to help improve the performance of the disk. Describe each of the following technique as used in the file management
18. With the aid of a diagram, describe the structure of the I/O control system
19. Define each of the following terms as used in memory management: (i)Thrashing ii)Starvation
20. With the aid of diagram, describe the round robin scheduling algorithm as used in computer operating system
21. Describe each of the following terms as used in process management: (4 marks) (i) race condition ii) Critical section
22. During an operating system lesson the teacher addressed various function of the software clock. Explain three such function that the teacher could have discussed
23. Define each of the following terms as used in operating system; (4 marks) (i) Device independence ii)Virtual device
24. Explain the circumstances under which each of the following disk system algorithm could be applicable. (6 marks) (i) first come first served (ii) shorted seek time first (iii)SCAN
25. Distinguish between software interrupt and trap as used in operating systems
26. Explain the function of each of the following terms as used in memory management; (6 marks) (i)relocating loader (ii) job control language (iv)Segmentation
27. Define each of the following terms as used in memory management; (i)Dispatch latency
28. Joan came across the following DOS commands when revising for her operating system examination. CD, DIR, FORMAT, BACKUP, RESTORE, CLS. Categorize each of them as either external or internal commands
29. Differentiate between each of the following replacement policies as used in memory management i) Least recently used ii) Not recently used
30. During an operating system class, peter came across the following file attributes. Explain the function of each of the attributes. (6 marks) (i) archive ii)hidden iii) System
31. Define each of the following terms as used in operating system: (4 marks) (i) Address translation ii) Address exception
32. With the aid of a diagram, describe the message passing as used in inter process communication
33. During revision for an operating system paper, ken came across the term metaphors. Outline two function of this facility
1. Define each of the following terms as used in computer operating system i)Shell ii)System call iii)Buffer
2. Explain each of the following inter process communication methods i)Semaphore ii)Signal
3. With the aid of a diagram, describe the NTFS file systems
4. Describe single streaming batch processing as used in operating system
5. Lara, database administrator used each of the following file lock mechanism in her design. Explain the results from each lock when enforced i)File lock ii) Write lock
6. Distinguish between coherency and inclusion as used in memory management
7. With the aid of the diagram, Describe each of the following memory allocation techniques: (I) Fixed partitioned allocations (ii) Paged allocation
8. June came across the following file name extension during a lesson. Identify the file type for each extension. (i) .bmp (ii) .xlsx iii).rar iv).exe
9. Jeremy prefer in the online method when storing his company’s file. Outline two reasons for his preference
10. Outline the criteria that could be used when choosing a schedule algorithm for an operating system.
11. Purity prefer the command line user interface over the GUI for her computer. Explain three reasons for this prefers
12. Differentiate between reusable and consumable resources as used in process in inter-process communication
13. Explain three reasons that could cause a process to be suspended
14. list four examples of utility programs used in computers
15. Differentiate between spatial locality and sequential locality as used in memory management:
16. Describe each of the following terms as used in file management (4 mks). (i)Alias file name; (ii)Pathnames;
17. Joss used the RAID and disk caching to help improve the performance of the disk. Describe each of the following technique as used in the file management
18. With the aid of a diagram, describe the structure of the I/O control system
19. Define each of the following terms as used in memory management: (i)Thrashing ii)Starvation
20. With the aid of diagram, describe the round robin scheduling algorithm as used in computer operating system
21. Describe each of the following terms as used in process management: (4 marks) (i) race condition ii) Critical section
22. During an operating system lesson the teacher addressed various function of the software clock. Explain three such function that the teacher could have discussed
23. Define each of the following terms as used in operating system; (4 marks) (i) Device independence ii)Virtual device
24. Explain the circumstances under which each of the following disk system algorithm could be applicable. (6 marks) (i) first come first served (ii) shorted seek time first (iii)SCAN
25. Distinguish between software interrupt and trap as used in operating systems
26. Explain the function of each of the following terms as used in memory management; (6 marks) (i)relocating loader (ii) job control language (iv)Segmentation
27. Define each of the following terms as used in memory management; (i)Dispatch latency
28. Joan came across the following DOS commands when revising for her operating system examination. CD, DIR, FORMAT, BACKUP, RESTORE, CLS. Categorize each of them as either external or internal commands
29. Differentiate between each of the following replacement policies as used in memory management i) Least recently used ii) Not recently used
30. During an operating system class, peter came across the following file attributes. Explain the function of each of the attributes. (6 marks) (i) archive ii)hidden iii) System
31. Define each of the following terms as used in operating system: (4 marks) (i) Address translation ii) Address exception
32. With the aid of a diagram, describe the message passing as used in inter process communication
33. During revision for an operating system paper, ken came across the term metaphors. Outline two function of this facility
