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- Question
Producer consumer problem can be solved using
Options- A. semaphores
- B. event counters
- C. monitors
- D. all of the above
- E. None of the above
- Correct Answer
- all of the above
- 1. Which of the following is a type of systems software used on microcomputers?
Options- A. MS-DOS
- B. PC-DOS
- C. Unix
- D. All of the above
- E. None of the above Discuss
- 2. The function(s) of the Storage Assignment is (are)
Options- A. to assign storage to all variables referenced in the source program.
- B. to assign storage to all temporary locations that are necessary for intermediate results.
- C. to assign storage to literals, and to ensure that the storage is allocate and appropriate locations are initialized.
- D. all of the above
- E. None of the above Discuss
- 3. What problem is solved by Dijkstra's banker's algorithm?
Options- A. mutual exclusion
- B. deadlock recovery
- C. deadlock avoidance
- D. cache coherence
- E. None of the above Discuss
- 4. Operating system
Options- A. links a program with the subroutines it references
- B. provides a layered, user-friendly interface
- C. enables the programmer to draw a flowchart
- D. all of the above
- E. None of the above Discuss
- 5. Block caches or buffer caches are used
Options- A. to improve disk performance
- B. to handle interrupts
- C. to increase the capacity of the main memory
- D. to speed up main memory read operation
- E. None of the above Discuss
- 6. If the number of bits in a virtual address of a program is 16 and the page size is 0.5 K bytes, the number of pages in the virtual address space is
Options- A. 16
- B. 32
- C. 64
- D. 128
- E. None of the above Discuss
- 7. Software that measures, monitors, analyzes, and controls real-world events is called:
Options- A. system software
- B. real-time software
- C. scientific software
- D. business software
- E. None of the above Discuss
- 8. The initial value of the semaphore that allows only one of the many processes to enter their critical sections, is
Options- A. 8
- B. 1
- C. 16
- D. 0
- E. None of the above Discuss
- 9. With MS-DOS which command will divide the surface of the blank floppy disk into sectors and assign a unique address to each one?
Options- A. FORMAT command
- B. FAT command
- C. VER command
- D. CHKDSK command
- E. None of the above Discuss
- 10. Which of the following statements is false?
Options- A. a small page size causes large page tables
- B. internal fragmentation is increased with small pages
- C. a large page size causes instructions and data that will not be referenced brought into primary storage
- D. I/O transfers are more efficient with large pages
- E. None of the above Discuss
Operating Systems Concepts problems
Search Results
Correct Answer: All of the above
Correct Answer: all of the above
Correct Answer: deadlock avoidance
Explanation:
The Banker's algorithm is a resource allocation & deadlock avoidance algorithm developed by Edsger Dijkstra that tests for safety by simulating the allocation of pre-determined maximum possible amounts of all resources, and then makes a "safe-state" check to test for possible deadlock conditions for all other pending activities, before deciding whether allocation should be allowed to continue.
Correct Answer: provides a layered, user-friendly interface
Correct Answer: to improve disk performance
Correct Answer: 128
Correct Answer: real-time software
Correct Answer: 1
Correct Answer: FORMAT command
Correct Answer: internal fragmentation is increased with small pages
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