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
221. For multithreading
- Tasks to be performed an be independent
- Task to be performed is essentially serialized.
- Tasks cannot be divided into number of threads
- None is true
222. The prinicipal 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
223. The trace of the process is
- A set of instructions that execute process
- A listing of sequence of instructions that execute process
- A track of network
- None of these
224. The two state process models have the following states
- Running and not Running
- Running and Ready
- Ready and Blocked
- New and Ready
225. The process control blocks are referred for
- Process control
- I/O devices
- Memory allocation
- None of these
226. Given the switch processes, when they occur match them (1) Clock Interrupt A- The processor encounters a virtual memory address reference for a word that is not in the main memory (2) I/O interrupt B-the operating system determines whether the currently running process thas been executed for the maximum allowable time slice (3) Memory fault (C)- The opeating 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
227. With trap in process control
- Operating system determines the error or exception condition that is fatal.
- Operating system interrupted for maximum allowable time.
- Are tables that manage information process
- None of these
228. Process control block is also referred as
- Fast control block
- Process descriptor
- Task descriptor
- A, B, C are all true
229. The operating system control tables maintain process tables, because
- These tables manages I/O devices
- These tables manages files
- These tables manages memory
- None of these
230. Windows XP is
- Uni-Programming processes
- Multi Programming process
- Hardware
- None of these