Gnome Display Manager - Quiz Explanation

The correct answers are indicated below, along with the text that explains the correct answers.
 
1. Which directory contains the primary gdm configuration file?
Please select the best answer.
  A. /etc
  B. /etc/X11
  C. /etc/X11/gdm
  D. /etc/X11/gdm/conf
  The correct answer is C. The full path to the file gdm.conf is /etc/X11/gdm/gdm.conf.
Answers A and B are incorrect because they are parent directories of C. Answer D is incorrect because this directory does not exist in a default install of gdm.

2. What benefit does the GNOME Display Manager have over a text-based login?
Please select the best answer.
  A. The GNOME Display Manager requires users to remember their usernames.
  B. The GNOME Display Manager provides a graphical session from login through logout.
  C. The GNOME Display Manager asks for user passwords.
  D. The GNOME Display Manager configures your X preferences.
  The correct answer is B. gdm already started the X server, so X Windows is available from start to finish. Answer A is incorrect because both gdm and text-based logins require users to remember their usernames. Answer C is incorrect because both gdm and text-based logins require users to enter their passwords. Answer D is incorrect because gdm doesn't configure your X preferences; you do that in your .Xdefaults file.

3. What is the primary role of the GNOME Display Manager (GDM) in a Red Hat Linux system?
Please select the best answer.
  A. A. GDM handles network connectivity.
  B. B. GDM manages system updates and package installations.
  C. C. GDM is responsible for managing user sessions and providing a graphical login prompt.
  D. D. GDM is a tool for system backup and recovery.
  The correct answer is C. GDM is responsible for managing user sessions and providing a graphical login prompt.

4. Which statement best describes how GDM interacts with the X Window System in Red Hat Linux?
Please select the best answer.
  A. GDM replaces the X Window System, providing its own graphical rendering functionality.
  B. GDM works on top of the X Window System, leveraging it to provide graphical login and manage user sessions.
  C. GDM and the X Window System are completely independent and do not interact.
  D. GDM is a part of the X Window System and cannot operate without it.
  The correct answer is B. GDM works on top of the X Window System, leveraging it to provide graphical login and manage user sessions.