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
321. OS/380 is a
- Single user system
- Multi user system
- Single tasking system
- None of these
322. Thread is
- Dispatch able unit of work
- Can be interrupted
- A and B both true
- A and B both false
323. Multithreading allows
- To run threads concurrently
- To run threads independently
- A is true, B is false
- A and B both true.
324. For multithreading
- Tasks to be performed can be independent
- Task to be performed is essentially serialized.
- Tasks cannot be divided into number of threads.
- None is true
325. The principal function of a process is
- To execute machine instructions residing in main memory.
- To execute assembly instructions residing outside main memory
- A and B both true.
- A and B both false.
326. The trace of the process is
- A set of instructins that execute process
- A listing of sequence of instructions that execute process
- A track of network
- None of these
327. The two state process models have the following states
- Running and Not Running
- Running and Ready
- Ready and Blocked
- New and Ready
328. The process control blocks are referred for
- Process control
- I/O devices
- Memory allocation
- None of these
329. Given three switch processes. when they occur match them (1) Clock interrupt A-The processor encounters a virtual memory address reference for a world that is not in the main memory. (2) I/O interrupt B-The operating system determines whether the currently running process has been executed for the maximum allowable time slice. (3) Memory fault C- The operating system determines the I/O action that occurs.
- 1-A, 2-B,3-C
- 1-B, 2-C, 3-A
- 1-B, 2-A, 3-C
- 1-C, 2-B, 3-A
330. With trap process control
- Operating system determines the error or exception condition that is atal.
- Operating system interrupted for maximum allowable time.
- Are tables that manage information process
- None of these