Basic Operating System MCQ
Basic Operating System MCQ
61. A thread
- is a lightweight process where the context switching is low
- is a lightweight process where the context swithching is high
- is used to speed up paging
- none of the above
62. Using Priority Scheduling algorithm, find the average waiting time for the following set of processes given with their priorities in the order: Process : Burst Time : Priority respectively . P1 : 10 : 3 , P2 : 1 : 1 , P3 : 2 : 4 , P4 : 1 : 5 , P5 : 5 : 2.
- 8 milliseconds
- 8.2 milliseconds
- 7.75 milliseconds
- 3 milliseconds
63. Routine is not loaded until it is called. All routines are kept on disk in a relocatable load format. The main program is loaded into memory & is executed. This type of loading is called _________
- Static loading
- Dynamic loading
- Dynamic linking
- Overlays
64. In the running state
- only the process which has control of the processor is found
- all the processes waiting for I/O to be completed are found
- all the processes waiting for the processor are found
- none of the above
65. The Purpose of Co-operating Process is __________.
- Information Sharing
- Convenience
- Computation Speed-Up
- All of the above
66. The kernel of the operating system remains in the primary memory because ________.
- It is mostly called (used)
- It manages all interrupt calls
- It controls all operations in process
- It is low level
67. The process related to process control, file management, device management, information about system and communication that is requested by any higher level language can be performed by __________.
- Editors
- Compilers
- System Call
- Caching
68. Which of the following disk scheduling techniques has a drawback of starvation ?
- SCAN
- SSTF
- FCFS
- LIFO
69. Multiprogramming systems ________.
- Are easier to develop than single programming systems
- Execute each job faster
- Execute more jobs in the same time
- Are used only on large main frame computers
70. Under multiprogramming, turnaround time for short jobs is usually ________ and that for long jobs is slightly ___________.
- Lengthened; Shortened
- Shortened; Lengthened
- Shortened; Shortened
- Shortened; Unchanged