Identify the components that provide graphical login, window borders and placement, and panels and menus.
Which role mapping is correct?
A display manager provides graphical login, a window manager controls window placement and decoration, and a desktop environment integrates panels and applications.
Detailed explanation
Incorrect. The roles are assigned to the wrong components.
Incorrect. These descriptions refer to unrelated system functions.
Correct. This mapping matches the normal roles of the three components.
Incorrect. They are separate components and processes, not always one process.
Try it yourself
An example you can run in a temporary verification environment.
systemctl status display-manager.service --no-pager 2>/dev/null | head || trueExpected result
設定済みならdisplay manager serviceの状態。変更は行わないKey points
- Display manager
- Window manager
- Desktop environment
Notes
- Environment: systemd service状態の読み取り
- Use read-only help or environment inspection when checking X11 commands.
- Exact display-manager and desktop packages vary by distribution.
Foundation review
Place the operation
These components have different responsibilities and can often be replaced independently.
Check the side effect
Check the installed session and display-manager configuration before changing a desktop component.