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LFCS · Question #108

Which of the following are tasks handled by a display manager like XDM or KDM? (Choose TWO correct answers.)

The correct answer is A. Start and prepare the desktop environment for the user. C. Handle the login of a user. Display managers like XDM or KDM are primarily responsible for presenting a graphical login interface, handling user authentication, and then launching the user's chosen desktop environment.

Submitted by parkjh· Apr 18, 2026Operation of Running Systems

Question

Which of the following are tasks handled by a display manager like XDM or KDM? (Choose TWO correct answers.)

Options

  • AStart and prepare the desktop environment for the user.
  • BConfigure additional devices like new monitors or projectors when they are attached.
  • CHandle the login of a user.
  • DLock the screen when the user was inactive for a configurable amount of time.
  • ECreate an X11 configuration file for the current graphic devices and monitors.

How the community answered

(49 responses)
  • A
    88% (43)
  • B
    4% (2)
  • D
    6% (3)
  • E
    2% (1)

Why each option

Display managers like XDM or KDM are primarily responsible for presenting a graphical login interface, handling user authentication, and then launching the user's chosen desktop environment.

AStart and prepare the desktop environment for the user.Correct

After a user successfully logs in, the display manager is responsible for starting the user's chosen desktop environment (e.g., GNOME, KDE, XFCE) or window manager, preparing their graphical session.

BConfigure additional devices like new monitors or projectors when they are attached.

Configuring display devices is typically handled by the X server itself, desktop environment components, or dedicated display configuration utilities, not the display manager.

CHandle the login of a user.Correct

A primary function of a display manager is to present a graphical login screen, collect user credentials, and authenticate the user against the system's authentication mechanisms.

DLock the screen when the user was inactive for a configurable amount of time.

Screen locking due to inactivity is a function of the desktop environment or a separate screen locker application, not the display manager itself.

ECreate an X11 configuration file for the current graphic devices and monitors.

Creating X11 configuration files is usually part of system setup or handled by the X server's auto-configuration, not a dynamic task of the display manager.

Concept tested: Display manager functions

Source: https://wiki.archlinux.org/title/Display_manager

Topics

#Display Manager#Login Process#Desktop Environment#X Window System

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