Operating System Basics Questions and Answers
Operating System Basics questions with answers are among the most commonly asked in technical interviews and exams. This section covers core OS concepts like process management, memory allocation, file systems, and scheduling algorithms. Practicing programming questions and answers on operating systems helps strengthen your conceptual clarity and practical understanding of computer architecture. Frequently featured in GATE, TCS, Infosys, and Wipro placements, these MCQs provide a balanced mix of theoretical and applied knowledge. Clear explanations make this section an ideal resource for anyone preparing for system-related roles or competitive exams.
Operating System Basics
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563 questions
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