A solution of OS question paper 2019 Odd 3rd Semester CSE SBTE Bihar
1. Process synchronization can be done on
Answer: Both hardware and software level
2. Which of the following do not belong to queues for processes?
Answer: PCB Queue
3. In a time-sharing operating system, when the time slot given to a process is completed, the process goes from the running state to the:-
Answer: Ready State
4. A Process Control Block (PCB) does not contain which of the following.
Answer: Bootstrap program
5. The number of processes completed per unit time is known as -
Answer: Throughput
6. Which of the following is not the state of a process?
Answer: Old
7. The segment of code in which the process may charge common variable, update, tables write into the file is known as:-
Answer: Critical Section
8. Conditions must be satisfied to solve the critical section.
Answer: All above (Mutual exclusion, progress, bounded wait)
9. The request and release of resources are -
Answer: System calls
10. For sharable resources, mutual exclusion-
Answer: Is not required
11. Virtual memory is normally implemented by
Answer: Demand Paging
12. A page fault occurs when :
Answer: the page is not found in the memory
13. Which of the following page replacement algorithms suffers from Belayd's Anomaly?
Answer: LRU
14. A process refers to 5 pages ABCDE in order ABCDABEABCDE. If the page replacement algorithm is FIFO, the number of page transfers with an empty internal store of 3 frames is :
Answer: 9
15. The Circular wait condition can be prevented by ...
Answer: Defining a linear ordering of resources types
16. Which are of the following is the deadlock avoidance algorithm.
Answer: Banker's Algorithms
17. To differentiate the many network services a system supports ... are used.
Answer: Ports
18. RPC provides a ... on the client-side, a separate one for each remote procedure.
Answer: Stub
19. The full form of RMI :
Answer: Remote Memory Invocation
20. A solution to the problem of external fragmentation is :
Answer: Compaction
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