Operating Systems Online Test

1. Which command is used to change the primary group of a user account in Linux?

2. Which command is used to display the current working directory in Linux?

3. Which web development tool is available for both Windows and Linux operating systems, providing features for code editing, debugging, and version control integration?

4. Which security feature in Windows provides real-time protection against viruses, malware, and other threats by scanning files and monitoring system activity?

5. Which backup strategy involves making copies of all data files and system files on a regular basis to an external storage device or cloud storage service?

6. Which command is used to remove files or directories in Linux?

7. What is the octal representation of read and write permissions for a file in Linux?

8. Which command is used to change the password of a user account in Linux?

9. Which troubleshooting tool in Linux allows users to view system logs, including kernel messages, system events, and application logs?

10. 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?

11. Which best practice is recommended for securing Linux operating systems against network attacks and intrusions?

12. Which virtualization software is developed by Microsoft and is included with Windows operating systems?

13. Which cloud computing platform provides Windows and Linux virtual machines (VMs) with the option to deploy applications in containers using Google Kubernetes Engine (GKE) and Cloud Run?

14. What is a key advantage of Linux operating systems?

15. Which file compression tool is available for both Windows and Linux operating systems, allowing users to create and extract compressed archive files?

16. Which command is used to add a public SSH key to a remote server's authorized keys list?

17. What is the Linux kernel?

18. Which cloud computing platform provides Windows Virtual Machines (VMs) that allow users to run Windows-based workloads on scalable and reliable infrastructure?

19. Which command is used to execute a shell script in Linux?

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

21. Which command is used to rotate and manage log files in Linux?

22. Which virtualization software is commonly used for desktop virtualization and provides features such as Unity mode for seamless integration between host and guest operating systems?

23. Which command is used to display information about user accounts in Linux?

24. Which virtualization software is available for both Windows and Linux operating systems, allowing users to run multiple virtual machines on a single physical machine?

25. Which shell is known for its advanced features, including improved tab completion and customization options?

26. Which file system supports snapshots for efficient backup and restore operations?

27. Which optimization technique in Linux allows users to improve system performance by removing unused software packages and dependencies?

28. What is a user account in Linux?

29. Which virtualization software is commonly used for development and testing purposes due to its ease of use and wide range of supported guest operating systems?

30. Which command is used to view the contents of a file in Linux?