Which of the following commands is given to reboot the computer ?

Pressing Ctrl + Alt + Del (Control + Alt + Delete) is a keyboard shortcut used to bring up the Task Manager on Windows operating systems. However, in the context of the question, it's worth noting that in older versions of Windows, including Windows XP, pressing Ctrl + Alt + Del also opened a menu that provided options for various system-related functions, including restarting the computer.

In the menu that appears after pressing Ctrl + Alt + Del, you typically have options such as Lock, Switch User, Sign Out, change a Password, and the option to open the Task Manager. Additionally, there is usually a "Restart" or "Shutdown" option, allowing you to reboot the computer.

It's important to mention that the functionality of Ctrl + Alt + Del and its associated menu options may vary slightly depending on the Windows version in use. In more recent versions of Windows, such as Windows 10, the Ctrl + Alt + Del combination is primarily used to open the security options (like locking the computer, signing out, or opening the Task Manager), and the restart or shutdown options are often accessible through the Start menu or Power menu.