Subject question bank

Operating System Questions for Exams

Prepare for semester exams using important questions, numericals, viva questions and unit-wise questions.

Your university

Open Operating System for your university, course and semester

U1 Introduction to OS U2 Concurrent Processes U3 CPU Scheduling U4 Memory Management U5 I/O Management and Disk Scheduling
U

Unit-wise questions

Unit 1

Introduction to OS

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  1. What is Operating System? Various component of Computer System
  2. Generation wise Operating System
  3. How operating system helps the user?
  4. Batch Processing Operating System, its advantage and disadvantage
  5. Spooling in Operating System, its advantages and disadvantages
  6. Multiprogramming OS: Definition, Advantages, and Disadvantages
  7. Time Sharing Operating System: Definition, Advantage & Disadvantage
  8. What is multitasking operating system? Write its advantage and disadvantage.
Unit 2

Concurrent Processes

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  1. What is a Process in Operating System?
  2. Explain various states of the Process
  3. Context Switching in Operating System with the help of Diagram
  4. Process Control Block (PCB) and List of Informations contains in PCB OS
  5. Difference between long term, middle term, and short-term schedulers
  6. Inter-process Communication in OS. Explain its two models
  7. What is Thread in OS? User and Kernel level thread
  8. Difference Between User-level and kernel-level thread
Unit 3

CPU Scheduling

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  1. What are the criteria of CPU Scheduling algorithms?
  2. Preemptive and Non-Preemptive Algorithm in Operating System
  3. Various Types of CPU Scheduling algorithm
  4. Discuss the FCFS(First Come First Serve) scheduling algorithm. Write its advantage and disadvantage.
  5. Discuss the SJF(Shortest Job First) scheduling algorithm. Write its advantage and disadvantage.
  6. Discuss the Priority scheduling algorithm. Write its advantage and disadvantage.
  7. Discuss the Round Robin scheduling algorithm. Write its advantage and disadvantage.
  8. Discuss the multilevel queue scheduling algorithm. Write its advantage and disadvantage.
Unit 4

Memory Management

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  1. What do you mean by memory protection.
  2. What is address binding.
  3. Write the difference between logical address space and physical address space.
  4. What do you understand by overlays.
  5. What do you mean by swapping?
  6. Explain the single partitioning scheme in memory.
  7. Explain the multiple partitioning scheme in memory. Write its advantage and disadvantage.
  8. What do you mean by dynamic partitioning. Write its advantage and disadvantage.
Unit 5

I/O Management and Disk Scheduling

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  1. Write a short note on Memory Mapped I/O and Direct Access Method for file.
  2. Write the difference between Block and Character Devices.
  3. Write a note on Blocking and non-Blocking I/O.
  4. Explain Direct Memory Access I/O Technique with diagrams.
  5. Explain I/O Buffering. Also Explain its types.
  6. Write the difference between Single Buffering and Double buffering.
  7. Write a short note on Disk Scheduling Algorithms.
  8. Write the different criteria for the selection of disk scheduling algorithm.