Operating Systems Concepts problems
- 1. IBM released its first PC in 1981. Can you name the operating system which was most popular at that time?
Options- A. MS-DOS
- B. PC-DOS
- C. OS/360
- D. CP/M
- E. None of the above Discuss
Correct Answer: CP/M
- 2. A page fault
Options- A. is an error is a specific page
- B. occurs when a program accesses a page of memory
- C. is an access to a page not currently in memory
- D. is a reference to a page belonging to another program
- E. None of the above Discuss
Correct Answer: is an access to a page not currently in memory
- 3. The CPU, after receiving an interrupt from an I/O device
Options- A. halts for a predetermined time
- B. hands over control of address bus and data bus to the interrupting device
- C. branches off to the interrupt service routine immediately
- D. branches off to the interrupt service routine after completion of the current instruction
- E. None of the above Discuss
Correct Answer: branches off to the interrupt service routine after completion of the current instruction
- 4. Which of the following is false about disk when compared to main memory?
Options- A. non-volatile
- B. longer storage capacity
- C. lower price per bit
- D. faster
- E. None of the above Discuss
Correct Answer: faster
- 5. The Register - to - Register (RR) instructions
Options- A. have both their operands in the main store.
- B. which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, except in the case of store operation when it is also written into the specified storage location.
- C. which perform indicated operations on two fast registers of the machine and leave the result in one of the registers.
- D. all of the above
- E. None of the above Discuss
Correct Answer: which perform indicated operations on two fast registers of the machine and leave the result in one of the registers.
- 6. The working set theory of programming behaviour of processes running within an operating system involves
Options- A. the collection of pages that a process accesses
- B. disk scheduling mechanisms
- C. coalescing holes in memory
- D. assigning the CPU to processes
- E. None of the above Discuss
Correct Answer: the collection of pages that a process accesses
- 7. Swapping
Options- A. works best with many small partitions
- B. allows many programs to use memory simultaneously
- C. allows each program in turn to use the memory
- D. does not work with overlaying
- E. None of the above Discuss
Correct Answer: allows each program in turn to use the memory
- 8. The macro processor must perform
Options- A. recognize macro definitions and macro calls
- B. save the macro definitions
- C. expand macros calls and substitute arguments
- D. all of the above
- E. None of the above Discuss
Correct Answer: all of the above
- 9. Which of the following is helpful in evaluating applications software what will best suit your needs?
Options- A. recommendations by other users
- B. computer magazines
- C. objective software reviews
- D. all of the above
- E. None of the above Discuss
Correct Answer: all of the above
- 10. Addressing modes
Options- A. defines the fundamental method of determining effective operand addresses
- B. are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
- C. performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
- D. all of the above
- E. None of the above Discuss
Correct Answer: are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
More in Computer Science:
Programming
Copyright ©CuriousTab. All rights reserved.