Basic Operating System MCQ
Basic Operating System MCQ
41. A binary semaphore
- has the values one or zero
- is essential to binary computers
- is used only for synchronisation
- is used only for mutual exclusion
42. _________ page replacement alogorithm suffers from Belady's anamoly.
- LRU
- MRU
- FIFO
- LIFO
43. _________ is a high speed cache used to hold recently referenced page table entries a part of paged virtual memory
- Translation Lookaside buffer
- Inverse page table
- Segmented page table
- All the above
44. _________ does the job of allocating a process to the processor.
- Long term scheduler
- Short term scheduler
- Medium term scheduler
- Dispatcher
45. In interactive environments such as time-sharing systems, the primary requirement is to provide reasonably good response time and in general, to share system resources equitably. In such situations, the scheduling algorithm that is most popularly applied is ________.
- Shortest Remaining Time Next (SRTN) Scheduling
- Priority Based Preemptive Scheduling
- Round Robin Scheduling
- None of the above
46. In the multi-programming environment, the main memory consisting of _________ number of process.
- Greater than 100
- Only one
- Greater than 50
- More than one
47. In a multithreaded environment _______.
- Each thread is allocated with new memory from main memory.
- Main thread terminates after the termination of child threads.
- Every process can have only one thread.
- None of the above
48. Which of the following statement is not true?
- Multiprogramming implies multitasking
- Multi-user does not imply multiprocessing
- Multitasking does not imply multiprocessing
- Multithreading implies multi-user
49. In one of the deadlock prevention methods, impose a total ordering of all resource types, and require that each process requests resources in an increasing order of enumeration. This voilates the _______________ condition of deadlock
- Mutual exclusion
- Hold and Wait
- Circular Wait
- No Preemption
50. In the ___________ method of data transfer, the participation of the processor is eliminated during data transfer.
- Buffering
- Caching
- Direct Memory Access
- Indirect Memory Access