Basic Operating System MCQ
Basic Operating System MCQ
111. In memory management , a technique called as paging, physical memory is broken into fixed-sized blocks called ___________.
- Pages
- Frames
- Blocks
- Segments
112. The state of a process after it encounters an I/O instruction is __________.
- Ready
- Blocked/Waiting
- Idle
- Running
113. 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
114. Which of the following file name extension suggests that the file is Backup copy of another file ?
- TXT
- COM
- BAS
- BAK
115. The degree of Multiprogramming is controlled by
- CPU Scheduler
- Context Switching
- Long-term Scheduler
- Medium term Scheduler
116. The higher versions of operating systems are so written that programs designed for earlier versions can still be run. What is it called ?
- Up gradiability
- Upward mobility
- Universality
- Upward Compatibility
117. A scheduling algorithm is fair
- if no process faces starvation
- if a process is starved, detect it and run it with high priority
- if it uses semaphores
- only if a queue is used for scheduling
118. A critical region
- is a piece of code which only one process executes at a time
- is a region prone to deadlock
- is a piece of code which only a finite number of processes execute
- is found only in Windows NT operation system
119. Semaphore can be used for solving __________.
- Wait & signal
- Deadlock
- Synchronization
- Priority
120. The operating system of a computer serves as a software interface between the user and the ________.
- Hardware
- Peripheral
- Memory
- Screen