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SECTION - A

1. Define Operating System.

2. What is a system call in OS?

3. What is a process in OS? Briefly Explain process management.

4. What is a semaphore?

5. What do you understand by contiguous allocation in memory management?

6. Briefly explain Page replacement algorithms.

7. Explain the concept of demand paging.

8. Explain the usage of any 5 directory-related commands in bash.

9. Briefly list the shell responsibilities with reference to Bourne Again Shell (BASH).

10. Write a shell script that checks whether the entered character is a vowel (a, e, i, o, u) or not.

SECTION - B

11. List and Explain the goals of an operating system.

12. Explain the concept of a Real-Time Operating System (RTOS). Explain the usage and application areas of RTOS.

13. Draw and describe the process states in process management.

14. Explain the difference between pre-emptive and non-pre-emptive scheduling. Give Examples.

15. Explain the concept and usage of virtual memory.

16. Explain Logical versus Physical address in Memory Management. Hence explain the working of the Memory Management Unit.

What is a deadlock in process management? Explain methods for handling deadlocks.

17. What is a process control block (PCB) in Linux? Explain the role of the PCB when switching from one process to another.

Explain the system call interfaces for process management. Explain the usage of "fork" and "exit".

18. What is a shell script? Write a shell script for a simple calculator program that can add, subtract, multiply, and divide two numbers as desired by the user. Add comment lines to explain what each part of the shell script is doing.

BCA Part-1 | Operating Systems | Semester-I | MDSU Exam Paper 2023 (Held in 2024)

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