Most Frequently Asked Operating System Multiple Choice Questions and Answers
1. Which runs on computer hardware and serve as platform for other software to run on?
2. Which is built directly on the hardware?
3. The primary purpose of an operating system is:
4. The operating system creates _____ from the physical computer.
5. ______ shares characteristics with both hardware and software.
6. Which is the first program run on a computer when the computer boots up?
7. Which is the layer of a computer system between the hardware and the user program.
8. Which of the following Operating System does not implement multitasking truly?
9. Multiprogramming systems:
10. ______ is used in operating system to separate mechanism from policy.
11. When a computer is first turned on or restarted, a special type of absolute loader called ____ is executed.
12. Which Operating System doesn’t support long file names?
13. Which of the following Operating systems is better for implementing a Client-Server network?
14. Which Operating System doesn’t support networking between computers?
15. Which is not the function of the Operating System?
16. What should be the extension to execute files?
17. The operating system manages
18. Which file keeps commands to execute automatically when OS is started?
19. Usually, in MSDOS, the primary hard disk drives has the drive letter ____ .
20. What is the function of an operating system?
21. Round robin scheduling is essentially the preemptive version of ________.
22. A page fault occurs
23. Which of the following will determine your choice of systems software for your computer ?
24. Let S and Q be two semaphores initialized to 1, where P0 and P1 processes the following statements waitS.;wait; ---; signalS.;signal and wait; waitS.;---;signal;signalS.; respectively. The above situation depicts a _________ .
25. What is a shell ?
26. Routine is not loaded until it is called. All routines are kept on disk in a relocatable load format. The main program is loaded into memory & is executed. This type of loading is called _________
27. In the blocked state
28. What is the memory from 1K - 640K called ?
29. Virtual memory is __________.
30. The process related to process control, file management, device management, information about system and communication that is requested by any higher level language can be performed by __________.
31. If the Disk head is located initially at 32, find the number of disk moves required with FCFS if the disk queue of I/O blocks requests are 98,37,14,124,65,67.
32. Multiprogramming systems ________.
33. Which is not the state of the process ?
34. The solution to Critical Section Problem is : Mutual Exclusion, Progress and Bounded Waiting.
35. The problem of thrashing is effected scientifically by ________.
36. The state of a process after it encounters an I/O instruction is __________.
37. The number of processes completed per unit time is known as __________.
38. _________ is the situation in which a process is waiting on another process,which is also waiting on another process ... which is waiting on the first process. None of the processes involved in this circular wait are making progress.
39. Which of the following file name extension suggests that the file is Backup copy of another file ?
40. Which technique was introduced because a single job could not keep both the CPU and the I/O devices busy?
41. A critical region
42. The mechanism that bring a page into memory only when it is needed is called _____________
43. PCB =
44. FIFO scheduling is ________.
45. Switching the CPU to another Process requires to save state of the old process and loading new process state is called as __________.
46. Which directory implementation is used in most Operating System?
47. The Banker's algorithm is used
48. A thread
49. ______ is a high level abstraction over Semaphore.
50. A tree structured file directory system
51. Translator for low level programming language were termed as
52. Analysis which determines the meaning of a statement once its grammatical structure
becomes known is termed as
53. Load address for the first word of the program is called
54. Symbolic names can be associated with
55. The translator which perform macro expansion is called a
56. Shell is the exclusive feature of
57. A program in execution is called
58. Interval between the time of submission and completion of the job is called
59. A scheduler which selects processes from secondary storage device is called
60. The scheduling in which CPU is allocated to the process with least CPU-burst time is called
61. The term ‘page traffic’ describes
62. The “turn-around” time of a user job is the
63. Which of the following can be used as a criterion for classification of data structures used in language processing.
64. Memory utilization factor shall be computed as follows
65. Program ‘preemption’ is
66. An assembler is
67. Which of the following is not a fundamental process state
68. ‘LRU’ page replacement policy is
69. Which of the following is true?
70. Which of the following approaches do not require knowledge of the system state?
1. Which runs on computer hardware and serve as platform for other software to run on?
2. Which is built directly on the hardware?
3. The primary purpose of an operating system is:
4. The operating system creates _____ from the physical computer.
5. ______ shares characteristics with both hardware and software.
6. Which is the first program run on a computer when the computer boots up?
7. Which is the layer of a computer system between the hardware and the user program.
8. Which of the following Operating System does not implement multitasking truly?
9. Multiprogramming systems:
10. ______ is used in operating system to separate mechanism from policy.
11. When a computer is first turned on or restarted, a special type of absolute loader called ____ is executed.
12. Which Operating System doesn’t support long file names?
13. Which of the following Operating systems is better for implementing a Client-Server network?
14. Which Operating System doesn’t support networking between computers?
15. Which is not the function of the Operating System?
16. What should be the extension to execute files?
17. The operating system manages
18. Which file keeps commands to execute automatically when OS is started?
19. Usually, in MSDOS, the primary hard disk drives has the drive letter ____ .
20. What is the function of an operating system?
21. Round robin scheduling is essentially the preemptive version of ________.
22. A page fault occurs
23. Which of the following will determine your choice of systems software for your computer ?
24. Let S and Q be two semaphores initialized to 1, where P0 and P1 processes the following statements waitS.;wait; ---; signalS.;signal and wait; waitS.;---;signal;signalS.; respectively. The above situation depicts a _________ .
25. What is a shell ?
26. Routine is not loaded until it is called. All routines are kept on disk in a relocatable load format. The main program is loaded into memory & is executed. This type of loading is called _________
27. In the blocked state
28. What is the memory from 1K - 640K called ?
29. Virtual memory is __________.
30. The process related to process control, file management, device management, information about system and communication that is requested by any higher level language can be performed by __________.
31. If the Disk head is located initially at 32, find the number of disk moves required with FCFS if the disk queue of I/O blocks requests are 98,37,14,124,65,67.
32. Multiprogramming systems ________.
33. Which is not the state of the process ?
34. The solution to Critical Section Problem is : Mutual Exclusion, Progress and Bounded Waiting.
35. The problem of thrashing is effected scientifically by ________.
36. The state of a process after it encounters an I/O instruction is __________.
37. The number of processes completed per unit time is known as __________.
38. _________ is the situation in which a process is waiting on another process,which is also waiting on another process ... which is waiting on the first process. None of the processes involved in this circular wait are making progress.
39. Which of the following file name extension suggests that the file is Backup copy of another file ?
40. Which technique was introduced because a single job could not keep both the CPU and the I/O devices busy?
41. A critical region
42. The mechanism that bring a page into memory only when it is needed is called _____________
43. PCB =
44. FIFO scheduling is ________.
45. Switching the CPU to another Process requires to save state of the old process and loading new process state is called as __________.
46. Which directory implementation is used in most Operating System?
47. The Banker's algorithm is used
48. A thread
49. ______ is a high level abstraction over Semaphore.
50. A tree structured file directory system
51. Translator for low level programming language were termed as
52. Analysis which determines the meaning of a statement once its grammatical structure
becomes known is termed as
53. Load address for the first word of the program is called
54. Symbolic names can be associated with
55. The translator which perform macro expansion is called a
56. Shell is the exclusive feature of
57. A program in execution is called
58. Interval between the time of submission and completion of the job is called
59. A scheduler which selects processes from secondary storage device is called
60. The scheduling in which CPU is allocated to the process with least CPU-burst time is called
61. The term ‘page traffic’ describes
62. The “turn-around” time of a user job is the
63. Which of the following can be used as a criterion for classification of data structures used in language processing.
64. Memory utilization factor shall be computed as follows
65. Program ‘preemption’ is
66. An assembler is
67. Which of the following is not a fundamental process state
68. ‘LRU’ page replacement policy is
69. Which of the following is true?
70. Which of the following approaches do not require knowledge of the system state?
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