Operating Systems Online Test

1. Which security feature in Windows provides a notification prompt for users when performing tasks that require elevated privileges to prevent unauthorized changes to system settings and files?

2. Which backup strategy involves creating a single backup file that contains all changes made since the last full backup, regardless of how many differential backups have been performed?

3. Which command is used to define variables in a shell script in Linux?

4. Which command is used to perform text substitution or replacement in Linux?

5. Which command is used to display the last field or column of text data in Linux?

6. Which command is used to display the contents of a file page by page in Linux?

7. Which security feature in Windows provides protection against unauthorized access to sensitive data by encrypting the contents of the hard drive?

8. Which containerization technology allows users to package and run Windows applications in lightweight, portable containers on Windows operating systems?

9. Which desktop environment is known for its modern design and workflow in Windows operating systems?

10. Which command is used to display a snapshot of currently running processes in Linux?

11. Which directory contains executable files in Linux?

12. Which Linux file system is commonly used in Microsoft Windows operating systems and is supported by Linux for compatibility with Windows partitions?

13. Which virtualization software is commonly used to create and manage virtual machines on macOS hosts?

14. Which command is used to generate SSH key pairs in Linux?

15. Which backup strategy involves creating a copy of the entire system configuration and data files at a specific point in time, often used for disaster recovery purposes?

16. What is the purpose of environment variables in the Linux shell?

17. Which desktop environment is commonly used in Linux distributions such as Ubuntu?

18. Which virtualization software provides support for advanced features such as snapshots, virtual networking, and remote access?

19. Which optimization technique in Linux allows users to improve system security and performance by applying updates and security patches?

20. Which symbol represents the execute permission in file permissions in Linux?

21. What are file permissions in Linux?

22. Which command is used to delete a user account in Linux?

23. What is the octal representation of full permissions (read, write, and execute) for a file in Linux?

24. Which file system is natively supported by both Windows and Linux operating systems?

25. Which file system supports journaling for improved data integrity and recovery?

26. Which virtualization software is open-source and freely available for personal and commercial use?

27. Which optimization technique in Windows allows users to improve disk performance by reorganizing fragmented files?

28. Which command is used to display lines of text data in reverse order in Linux?

29. Which command is used to add a user to a group in Linux?

30. Which command is used to extract specific columns or fields from text data in Linux?