Basic Operating System MCQ
Basic Operating System MCQ
31. A tree sturctured file directory system
- allows easy storage and retrieval of file names
- is a much debated unecessary feature
- is not essential when we have millions of files
- none of the above
32. The high paging activity is called ________.
- Inter process communication
- Thrashing
- Context Switch
- None of the above
33. The Hardware mechanism that enables a device to notify the CPU is called __________.
- Polling
- Interrupt
- System Call
- None of the above
34. 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
35. Which of the following is crucial time while accessing data on the disk?
- Seek time
- Rotational time
- Transmission time
- Waiting time
36. Process State is a part of
- Process Control block
- Inode
- File Allocation Table
- None of the above
37. Who is called a supervisor of computer acitvity ?
- CPU
- Operating system
- Control unit
- Application Program
38. Virtual memory is __________.
- An extremely large main memory
- An extremely large secondary memory
- An illusion of extremely large main memory
- A type of memory used in super computers
39. The kernel keeps track of the state of each task by using a data structure called __
- Process control block
- User control block
- Memory control block
- None of the above
40. Which of the following disk scheduling techniques has a drawback of starvation ?
- SCAN
- SSTF
- FCFS
- LIFO