cyber section 4 and 5 practice questions

which non-symlink file in the /usr/lib/systemd/system/ directory is used to start the services necessary for multiple users, networking, and a graphical display?

graphical.target

make changes take effect, command enter to make this service use the new configuration?

systemctl restart anaconda.service

directory contains the configuration file for GRUB 2

/boot/grub2/

grub2 configuration file (non-editable)

/boot/grub2/grub.cfg

full path and filename of the GRUB 2 file that is used for editing the default behavior of the boot loader menu?

/etc/default/grub

grub2 configuration file (editable)

/etc/default/grub

grub2 directory for script files

/etc/grub.d/

you have a grub2 installed on your linux workstation. you need to make changes to the boot menu. which files and scripts can you edit to modify the menu entries and behavior of the boot menu?

/etc/grub.d/40_custom /etc/default/grub

Anna, a system admin, wants to prevent users from pressed the ctrl alt delete key combination to reboot the server. which config file should be modified?

/etc/iniitab

if a systemd system us configured to use multi-user.target as the default boot target, which file has a symbolic link to the multi-user.target file?

/etc/systemd/system/default.target

scrip that identifies kernels on the root device and creates menu entries

10_linux

script file that allows menu entries to be modified

40_custom

which system component verifies the hardware and passes control of the computer to the boot loader?

BIOS

correct order for the boot phases of a Linux computer?

BIOS, boot loader, OS kernel, system or init

default for many linux distributions

GNOME

editing the /etc/default/grub file.. option should you use to set the default operating system?

GRUB_DEFAULT=

emulates a windows desktop, especially in the location of the menu options and bottom panel bar>

KDE

started by an Arch Linux user in response to the negative reception of GNOME 3 and continue to follow the GNOME 2 code base

MATE

which Remote Desktop tech offers access from most common platforms such as Linux, windows, Mac, iOS , android, and rasberry?

NX

in which boot process stage is the root partition mounted?

OS kernel

responsible for loading and executing the initial process

OS kernel

provides a complete open-source solution for remote access to virtual machines?

SPICE

default for ubuntu until 2017

Unity

which of the following technologies establishes a connection w a remote computer using a viewer on one end and a server on the remote end

VNC

which component of the X11 window system controls the placement and appearance of windows on a Linux computer?

Windows Manager

which X11 window system element is the MAIN system component?

X11 server

role of linux desktop

adds a series of tools and utilities to make the GUI useful

difficulty typing, containing pressing keys by accident, which keyboard accessibility option should be enabled?

bounce keys

following desktops from GNOME 3, follows traditional desktop metaphor conventions, and is the primary desktop environment for the min distribution?

cinnamon

configure GRUB 2 boot loader to display the menu for 12 seconds before it automatically boots the default operating system. best first step to configure the boot loader?

edit the timeout parameter in the /etc/default/grub file to say GRUB_TIMEOUT=12

u have just installed a new linux system, which is using the wayland system. which of the following is a valid statement regarding this system?

events captured from the keyboard are sent to the wayland compositor and then the wayland client, where the rendering takes place

following commands will help you to determine which version of GRUB is installed on your linux system?

grub-install -v grub2-install --version

after updating the settings in the /etc/default/grub file, you know the changes must be written to the grub.cfg file before they will be used. what would you enter at the common prompt to write the changes to the grub.cfg file?

grub2-mkconfig -o /boot/grub2/grub.cfg

accessibility option adjusts the background and text colors to improve readability?

high contrast

which command completely shuts down the system in an orderly manner?

init 0

difficulty using mouse, keyboard accessibility option?

mouse keys

which file in the /usr/lib/system/ directory is text-based and used to start the services that support multiple users and support networking?

multi-user.target

free open-source scriptable screen reader that works w GNOME desktop?

orca

best describes the repeat keyboard accessibility option

repeat keys affect how quickly the action associated w the key is repeatedly performed when the key is pressed and held down

which of the following system unit-specific sections describes how to manage services or applications on the server?

service

prevent a user from booting a computer, booting from removable devices, and changing the UEFI/BIOS settings?

set a UEFI/BIOS password

attacker boots into single user mode, logged in automatically as root user w out being required to enter root password, best measure to prevent?

set a boot loader password

have a systemd linux system that is configured to boot into the graphical.target by default. the system seems to be running much slower than normal. you need to reboot the system, but you want it to boot into a single-user target unit w no network access so you can perform troubleshooting tasks and get the system running normally again. what should you do before you reboot?

set the default boot target to rescue.target

which option prevents fsck from running after the reboot and allows the system to boot faster?

shutdown -f

...send message to users to give them 15 min to save data and exit the system

shutdown -h +15 It is time for a shutdown!

need to shut down the system immediately and send a message to logged in users to allow running processes to close gracefully

shutdown -h now

command to manage the services and targets

systemctl

you are experiencing a problem w one particular server. each time it boot it foes into single-user mode even though no warning or errors are reported. u want to verify that it is configured to boot to the multi-user.target unit, just as all your other servers are. this system is running systemd. which command would u use to see which boot target is set as the default?

systemctl get-default

currently running the multi-user.target. what would u enter at the command prompt to find out whether the attd.service is configured to start every time the multi-user.target is loaded?

systemctl is-enabled attd.service

on a systemd system. without rebooting the system, u want to change from the currently running target unit to a target that supports networking, multiple users, and displays a graphical interface. what command accomplishes this task?

systemctl isolate graphical.target

experiencing a problem w a network server, want to bring the system down and try reseating the cards within it before restarting it. command runs power off.target to shut down the system in an orderly manner?

systemctl isolate poweroff.target

u need to perform some system maintain on a systemd system, u want to prevent users from logging on while u do so. what command do u run?

systemctl isolate rescue.target

current boot target is multi-user.target, u want to use this system as a desktop workstation. u need a boot target that supports multiple users, supports networking, and has a graphical display. this is a systemd system. what command should you enter to change the default boot target to one that meets these needs?

systemctl set-default graphical.target

enter to run cups.service

systemctl start cups.service

command to find out if cups.service is running

systemctl status cups.service

responsible for bringing up other units and services when boot targets are changed?

systemd

what is the core process for a systemd-base linux system?

systemd

has a process ID (PID) of 1?

the initial process

you have a system with more than one linux operating system installed. during the systems boot up process, which component loads a splash screen, allowing you to choose which operating system you want to run?

the secondary boot loader

following are popular linux desktops

unity mate cinnamon gnome kde

which of the following users MOST benefit from the sticky keys accessibility option?

users who have difficulty pressing multiple keys at the same time

examples of a linux display server

wayland compositor X11

following implementations would allow the system dmins to connect to linux systems using windows Remote Desktop?

xrdp