Unix File System and Backup
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Questions and Answers

What command is used to generate a permanent /etc/X11/xorg.conf file?

  • $ Xorg -configure
  • $ sudo Xorg -configure (correct)
  • $ sudo X -configure
  • $ X -configure

    • What is created in the current working directory after running the Xorg -configure command?

  • xorg.conf
  • xserver.conf
  • wayland.conf
  • xorg.conf.new (correct)

    • What is the purpose of the Wayland protocol?

  • To replace the Linux kernel
  • To communicate with the kernel via the X Window System
  • To request rendering from the Linux kernel (correct)
  • To handle device input, window management, and composition

    • What is the assumption about the execution of the script sync.sh?

    <p>It is executed by root or user carol.</p> Signup and view all the answers

    What would be the correct way to specify the script if it is not in a directory listed in the PATH environment variable?

    <p>Specify the full path to the script.</p> Signup and view all the answers

    What is the primary goal of the Wayland project?

    <p>To replace the X Window System with a lighter protocol</p> Signup and view all the answers

    What is the purpose of the command test in bash scripting?

    <p>To verify if a file path is newer than another file.</p> Signup and view all the answers

    What is the role of the Wayland compositor?

    <p>To handle device input, window management, and composition</p> Signup and view all the answers

    What is a characteristic of the X Window System?

    <p>It uses a server instance to manage client requests</p> Signup and view all the answers

    What is the issue with the script that prints a number sequence from 0 to 9?

    <p>The script is missing an increment operation.</p> Signup and view all the answers

    What is the purpose of the script that requires a sorted list of usernames?

    <p>To sort a list of usernames.</p> Signup and view all the answers

    What is the relationship between X and Xorg on some Linux distributions?

    <p>X is a symbolic link to Xorg</p> Signup and view all the answers

    What manual page provides further information on the X Window System?

    <p>All of the above</p> Signup and view all the answers

    What would be the correct way to increment the COUNTER variable in the script?

    <p>COUNTER=$((COUNTER+1))</p> Signup and view all the answers

    What is the purpose of the /media/carol/backup directory?

    <p>To store system backups.</p> Signup and view all the answers

    What is the purpose of the sync.sh script?

    <p>To synchronize files between two directories.</p> Signup and view all the answers

    What is the purpose of the DISPLAY environment variable?

    <p>To specify the display configuration for the X Window System</p> Signup and view all the answers

    What command is used to create a keyboard configuration file for the X Window System?

    <p>localectl</p> Signup and view all the answers

    What is the purpose of the DontVTSwitch option in the xorg.conf file?

    <p>To disable virtual terminals</p> Signup and view all the answers

    What is the name of the configuration file used to set global Xorg options on the server?

    <p>ServerFlags.conf</p> Signup and view all the answers

    What is the purpose of the X11 protocol?

    <p>To access remote desktop sessions</p> Signup and view all the answers

    What is the purpose of the XDMCP protocol?

    <p>To access remote desktop sessions</p> Signup and view all the answers

    What is the name of the desktop environment that is known for its simplicity and lightweight design?

    <p>Xfce</p> Signup and view all the answers

    What is the purpose of the VNC protocol?

    <p>To access remote desktop sessions</p> Signup and view all the answers

    What is the primary function of a window manager in a desktop environment?

    <p>To control window placement and decorations</p> Signup and view all the answers

    What concept do the basic ideas of graphical interfaces in desktop computers originate from?

    <p>Office workspaces</p> Signup and view all the answers

    What do software libraries like GTK+ and Qt provide to programmers?

    <p>Widget toolkits for building graphical interfaces</p> Signup and view all the answers

    What is the main purpose of VNC?

    <p>To transmit events from local keyboard and mouse to a remote desktop.</p> Signup and view all the answers

    What is the purpose of a widget toolkit in a desktop environment?

    <p>To provide informative or interactive visual elements</p> Signup and view all the answers

    What is the convention for TCP ports when running multiple VNC servers?

    <p>The first server uses TCP port 5900, the second uses 5901, and so on.</p> Signup and view all the answers

    Why did applications developed with GTK+ and Qt historically look different?

    <p>Because of the different widget toolkits used</p> Signup and view all the answers

    What is the relationship between the window manager and the widget toolkit in a desktop environment?

    <p>The window manager relies on the widget toolkit to assemble its interface</p> Signup and view all the answers

    What is the purpose of the ~/.vnc/xstartup file?

    <p>To define the desktop environment for the VNC server.</p> Signup and view all the answers

    What is a limitation of VNC?

    <p>It does not provide modern encryption and authentication methods natively.</p> Signup and view all the answers

    What is the purpose of a desktop environment's theme support?

    <p>To make the distinction between GTK+ and Qt less obvious</p> Signup and view all the answers

    What is the primary use case for the Remote Desktop Protocol (RDP)?

    <p>Remotely accessing a Windows system.</p> Signup and view all the answers

    What is the role of a widget in a graphical interface?

    <p>To provide informative or interactive visual elements</p> Signup and view all the answers

    What is the purpose of the Spice protocol?

    <p>To access the desktop environment of virtualized systems.</p> Signup and view all the answers

    Why is it recommended to use VNC with a third-party application?

    <p>To provide modern encryption and authentication methods.</p> Signup and view all the answers

    What is a common method to secure VNC connections?

    <p>Using all of the above.</p> Signup and view all the answers

    Study Notes

    Scripting and Shells

    • The sync.sh script generates backup files from the /home/carol directory to the /media/carol/backup directory.
    • The script assumes it is executed by root or user carol, as most files would be unreadable by other users.
    • If the script is not in a directory listed in the PATH environment variable, it should be specified with its full path.

    Customizing Scripts

    • The test command can be used to verify if a file path stored in the variable FROM is newer than a file whose path is stored in the variable TO.
    • A script with a while loop can become infinite if the loop counter is not incremented or decremented correctly.

    X Window System

    • The Xorg -configure command generates a permanent /etc/X11/xorg.conf file.
    • The xorg.conf.new file is created in the current working directory and needs to be moved to the /etc/X11/ directory and renamed to xorg.conf.
    • The DISPLAY environment variable on a system named lab01 using a single display configuration would be lab01:0.2.

    Wayland

    • Wayland is a newer display protocol designed to replace the X Window System.
    • It is lighter on system resources and has a smaller installation footprint than X.
    • Wayland is still under active development, including work from active and former X.org developers.
    • In Wayland, a client window works with its own code or that of a toolkit to provide rendering, and a request is made to the Linux kernel via the Wayland protocol.

    Graphical Desktops

    • Major desktop environments include KDE, Gnome, Xfce, and others.
    • Window managers control window placement and decorations, such as title bars, minimize, maximize, and close buttons.
    • Desktop environments provide a window manager that matches the look and feel of its widget toolkit.
    • Widget toolkits, such as GTK+ and Qt, provide widgets that programmers can use to build graphical interfaces for applications.

    Remote Desktop Sessions

    • VNC (Virtual Network Computing) is a protocol that allows remote access to a graphical desktop.
    • A VNC server can be started by an ordinary user, and a VNC client can be used to access the remote desktop.
    • VNC does not provide modern encryption and authentication methods natively, so it should be used with a third-party application that provides such features.
    • RDP (Remote Desktop Protocol) is mainly used to remotely access the desktop of a Microsoft Windows operating system.
    • Spice (Simple Protocol for Independent Computing Environments) is a suite of tools aimed at accessing the desktop environment of virtualized systems.

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    Related Documents

    LPI-Learning-Material-102-500-en-122-164.pdf

    Description

    This quiz is about the Unix file system and backup commands, specifically the sync.sh command. It covers file system navigation and directory structures.

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