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
331. Process control block is also referred as
- Fast control block
- Process descriptor
- Task descriptor
- A, B, C are all true.
332. 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
333. Window XP is
- Uni-prgramming processes
- Muti programming processes
- Single process
- None of these
334. In shared memory multi processor
- Computer communicate to each other by fixed paths
- Computer communicates to each other via a shared memory
- Each processing element is a self contained computer
- None of these
335. The following is not true for master/slave architecture
- A failure of master brings down the whole system
- Operating system kernel runs on master processor only.
- Operating system kernel can run on any processor either master or slave.
- al scheduling andprocess management is done on master processor.
336. In monoithic operating system
- Virtually any proedure can call any other procedure.
- Virtually specific procedure can call any other procedure.
- Virtually specific procedure can call specific procedure
- None of these
337. In layered operating system following statement is false
- Most or all the layers execute in kernel mode.
- Interaction only takes place between adjacent layers
- Functions are organized hierachically.
- None of these
338. When operating system always run on a particular processor and that particular processor do all scheduling and process management then this is an example of
- Master/slave architecture
- Symmetric multiprocessor
- Cluster
- None of these.
339. In Micro kernel architecture following is false.
- Intersection takes place only between adjacent layers
- Intersection takes place via micro kernel.
- It supports portability
- It supports object-oriented operating system.
340. In the following processes: a =a+1; b=2 x b:b = b+1; a = 2 x a; the output is
- a >b
- a < b
- a = b
- None of these