ITN 170 Exam 3 Study Guide
Which of the following commands will most likely increase the chance of a process receiving more time slices? a. renice 0 b. renice 15 c. renice -12 d. renice 19
renice -12
If you make any changes to the /etc/default/grub file, you need to ensure that the _______ file is updated. a. /boot/grub/grubconfig.cfg b. /boot/grub/grub.cfg c. /boot/grub/grubcfg d. /boot/grub/grub.config
/boot/grub/grub.cfg
To kill a process running in the background, you must place a % character before its process ID. True or False? a. True b. False
False
UIDs and GIDs are unique to the system and, once used, can never be reused. True or False? a. True b. False
False
Which of the following commands can be used to convert files between different character encodings? a. iconv b. conv c. convert d. transform
iconv
Which command can be used to start X Windows, the window manager, and the default desktop environment? a. startgui b. startgdm c. startx d. gstart
startx
Which parameter should be used with the shutdown command to schedule a shutdown? a. -c b. -r c. -a d. -x e. -z
-r
Which parameter should you use to copy the hardware time to system time? a. -t b. -s c. -a d. -b e. -w
-s
Which file does the UNIX SysV init daemon reference on startup to determine the default runlevel? a. /etc/initstate b. /inittab c. /etc/init d. /etc/inittab
/etc/inittab
Which file should you edit to change the default port for SSH? a. /etc/systemd/logind.conf b. /etc/login c. /etc/ssh/sshd_config d. /etc/hosts
/etc/ssh/sshd_config
Which settings, when being configured, bring up the Hover Click dialog box? a. Repeat Keys b. Typing Assist c. Click Assist d. Mouse Keys
Click Assist
Which two implementations of X Windows are commonly used in Linux? (Choose two answers.) a. X.org b. XFCE c. winX d. Wayland
X.org Wayland
Which command causes the system to enter Single User Mode? a. init 0 b. init 1 c. init 6 d. initstate 5
init 1
Which of the following will invalid entries in the GRUB2 configuration cause? a. kernel warning automatically skipping invalid entries b. kernel panic and halt the system c. kernel error with confirmation to skip invalid entries d. no error, automatically skipping invalid entries until a valid entry is found
kernel panic and halt the system
What is the name of the utility used to rotate log files? a. syslog b. jetpack c. logrotate d. logbackup
logrotate
Which parameter in the /etc/default/grub file makes Ubuntu the default operating system if there is another operating system loaded? a. GRUB_DISTRIBUTOR b. GRUB_CMDLINE_LINUX c. GRUB_DEFAULT d. GRUB_HIDDEN
GRUB_DEFAULT
Which of the following section in the /etc/rsyslog.conf file contains information that apply to the rsyslogd daemon and start with $? a. Rules b. Modules c. Templates d. Output Channels e. Global Directives
Global Directives
When you create a user with the useradd command, what is the immediate state of it? a. Active b. Inactive c. Locked d. Open
Locked
To perform administrative tasks using the Web interface, you must use the root account. An alternative is to add the user to the _________ group. a. Admin b. Printer c. Lpadmin d. Root
Lpadmin
Which command is used to gain real-time information about processes running on the system, with the most processor-intensive processes listed at the beginning of the list? a. ps b. ps -elf c. top d. pstree
top
When a user is deleted and a new user is created using the same UID, what is the status of the files owned by the previous user? a. The new user becomes the owner b. The administrator becomes owner c. The files are no longer accessible d. The new user gets Read access to the files
The new user becomes the owner
Which of the following does a Linux kernel use to store the value of epoch time? a. The number of days since January 1, 1900 b. The number of minutes since January 1, 1900 c. The number of seconds since January 1, 1970 d. The number of milliseconds since January 1, 1980
The number of seconds since January 1, 1970
Which of the following information is displayed with the who command? [Choose all that apply.] a. Time of the last system boot b. List of logged in users c. Current user name d. Current run level of the system
Time of the last system boot List of logged in users Current run level of the system
You can clear a log file simply by redirecting nothing into it. True or False? a. True b. False
True
You can lock a user account by changing the default login shell to an invalid shell in /etc/passwd. True or False? a. True b. False
True
Which of the following statements is true? a. Unicode provides the least localization support for different languages. b. ASCII is the most common character set used today. c. UTF-8 is commonly used to provide Unicode character set support. d. ASCII is an extension of the ISO-8859 standard.
UTF-8 is commonly used to provide Unicode character set support
Which of the following commands can be used to start a UNIX SysV daemon called lala in runlevels 1, 2 and 3? a. chkconfig --level 123 lala on b. update-rc.d lala defaults c. systemctl enable lala 123 d. service enable lala 123
chkconfig --level 123 lala on
Which of the following indicates the second MBR partition on the third hard disk drive to GRUB2? a. hd2,msdos2 b. hd4,mbr3 c. hd3,mbr2 d. hd2,msdos1
hd2,msdos2
You have recently modified the system time using the date command. What command can you run to ensure that the same time is updated within the system BIOS? a. timedatectl --update b. tzselect c. hwclock -w d. date --set
hwclock -w
What command can you use to view journald log entries on a system that uses Systemd? a. less b. journalctl c. syslog d. catlog
journalctl
Which command can be used to modify the default locale on the system? a. tzselect b. cmdline c. localectl d. export LANG=C
localectl
Which command is used to change the priority of an active process? a. nice b. top c. renice d. ps
renice
Which of the following feature flashes the entire screen? a. Click Assist b. Typing Assist c. Repeat Keys d. Mouse Keys e. Visual Alerts
Visual Alerts
Which of the following commands will display the print jobs in the print queue for printer1 only? a. lpstat -o printer1 b. lpq -d printer1 c. lpq -p printer1 d. lp -j printer1
lpstat -o printer1
Which utility has replaced the chkconfig utility in Ubuntu? a. Systemd b. update-rc.d c. Daemon-reload d. Systemctl
update-rc.d
Which of the following commands can be used to set the default printer for all users on a Linux system where printer1 is the name of the printer? a. lp -d printer1 b. lpoptions -d printer1 c. lpd -d printer1 d. lpq --set-default printer1
lpoptions -d printer1
To view the virtual regions being used, you should use the ________ command. a. ps b. maps c. vmstat d. top
maps
Which of the following Systemd commands can be used to stop a daemon called lala? a. service stop lala b. systemctl stop lala.service c. chkconfig stop lala d. stop lala
systemctl stop lala.service
When a printer is disabled, ________. a. the print queue does not accept jobs and sends a message to the user noting that the printer is unavailable b. the print queue accepts jobs into the print queue and holds them there until the printer is enabled again c. the printer appears as offline when an lp request is sent d. the print queue redirects all print jobs sent to it to /dev/null
the print queue accepts jobs into the print queue and holds them there until the printer is enabled again
Which of the following options can be specified in the GRUB Legacy configuration file to set how long the boot menu is displayed before loading the default image? a. splash b. timeout c. wait d. timer
timeout
Which of the following states describe a process that is waiting for a parent process to release its PID? a. wait b. suspended c. zombie d. dead
zombie
You use lpstat and determine that a user named User1 has placed two large print jobs in the queue for Printer1 that have yet to start printing. They have print job IDs of Printer1-17 and Printer1-21, respectively. Which command would you use to remove these two jobs from the print queue? a. cancel Printer1-17 Printer1-21 b. cancel -u Printer1-17 Printer1-21 c. cancel -a Printer1-17 Printer1-21 d. cancel 17 21
cancel Printer1-17 Printer1-21
Which command is used to change the user password expiration information? a. chage b. edit c. userpass d. useradd
chage
What command is used to view and modify user jobs scheduled to run with cron? a. crontab b. cron c. ps d. sched
crontab
Which of the following commands will show the current user cron jobs that have been created for the currently logged in user? a. cronjobs --list b. cron --list c. cron -l d. crontab -l
crontab -l
CUPS gets its directives from its configuration file, which is /etc/cups/__________. a. cupsd.conf b. cupsd.conf.original c. Printer.conf d. CUPS.conf
cupsd.conf
What is the name given to a process not associated with a terminal? a. child process b. parent process c. user process d. daemon process
daemon process
When referring to the /etc/rsyslog.conf file, __________ specifies information from a certain area of the system, whereas ________ is the level of importance of that information. a. section, priority b. service, precedents c. process, degree d. facility, priority
facility, priority
Which command will bring a background process in foreground? a. fground b. foreground c. foreg d. fg
fg
Which of the following can be used to compare the hardware clock to the system clock, writing a new result to a new line every 10 seconds? a. systohc --compare b. compare --hw2sys c. hwtosys -c d. hwclock -c
hwclock -c
Which process has a PID of 1 and a PPID of 0? a. the kernel itself b. ps c. init/systemd d. top
init/systemd
A runaway process that is faulty and consuming mass amounts of system resources ________. a. is a zombie process b. is an orphaned process c. has a PPID of Z d. is a rogue process
is a rogue process
Which command can be used to see processes running in the background? a. bg b. jobs c. ps -% d. fg
jobs
Which command should you run to list the background processes? a. pid b. ps c. pidof d. jobs
jobs
Which of the following commands will send a process's resources to /dev/null to kill the process for process ID 1357? a. sigkill 1357 b. killall 1357 c. kill -15 1357 d. kill -9 1357
kill -9 1357
You want to kill all process IDs of a specific process with a single command. Which command should you use? a. kill b. sleep c. killall d. pidof
killall
Which process is used for logging events from the kernel? a. klogd b. syslogd c. rsyslogd d. ksyslogd
klogd
Which of the following processes are part of the syslog service? [Choose all that apply.] a. klogd b. rsyslogd c. ksyslogd d. syslogd
klogd rsyslogd
To determine the recent logins on your system, which command should you use? a. netstat b. last c. top d. ps
last
Which command should you use to find the last login for each individual on a system? a. top b. last c. netstat d. lastlog e. ps
lastlog
Which of the following commands can be used to see files that are currently being used by a specific process ID (PID)? a. psfiles b. lsof c. pstatus d. pids
lsof
Which of the following is the default window manager used by the GNOME version 3 desktop environment? a. mutter b. metacity c. wmaker d. kwin
mutter
Which command will help you determine the services that are running on specific ports? a. ps b. nbtstat c. netstat d. top
netstat
Which command can be used to temporarily alter the primary group associated with a given user? a. usermod b. chggrp c. gpasswd d. newgrp
newgrp
Which command should be used to change the priority of a process? a. top b. list c. nice d. ps
nice
Which of the following can be used preceding a command to prevent a process from terminating when the parent process terminates? a. bg b. runat c. & d. nohup
nohup
Every process has a process ID and a_______. a. fork process b. daemon c. child process d. parent process ID
parent process ID
Which command would you use to unlock a user account? a. unlock username b. open username c. passwd -u username d. useradd -U username
passwd -u username
The process of sending print jobs from the print queue to the printer is called _____. a. spooling b. queuing c. redirecting d. printing
printing
To display the processes for the current shell, you should use the ____ command. a. ps b. uptime c. top d. vmstat e. maps
ps
Which command entered without arguments is used to display a list of processes running in the current shell? a. pgrep b. list c. pid d. ps
ps
Which command will list the processes for a specific user? a. top b. ps c. list d. nice
ps
The _________ command displays the lineage of a process by tracing its PPID back to the init daemon. Enter your answer in the space provided.
pstree
Which of the following characters, when pressed while the top program is running, will allow you to change the niceness of a process? a. n b. p c. r d. d
r
What kernel option can be specified within a boot loader to force the system to boot to Single User Mode? a. init b. rescue c. single d. telinit
single
Which two commands can be used to change the runlevel? [Choose two.] a. chkconfig b. telinit c. init d. runlevel
telinit init
Which of the following commands will shut down a Linux system? (Choose all that apply.) a. runlevel 0 b. telinit 0 c. shutdown -h now d. poweroff
telinit 0 shutdown -h now poweroff
When a printer is rejecting requests,____________. a. the print queue does not accept jobs and sends a message to the user noting that the printer is unavailable b. the print queue does accept jobs into the print queue and holds them there until the printer is accepting requests again c. the printer appears as offline when an lp request is sent d. the print queue redirects all print jobs sent to it to /dev/null
the print queue does not accept jobs and sends a message to the user noting that the printer is unavailable
To display the uptime of a process, you should use the ______ command. a. ps b. top c. vmstat d. uptime e. maps
uptime
Which command is used to delete a user account? a. usermod -d username b. del username c. userdel username d. rm username
userdel username
Which command should you use to add a user to the plabuser group? a. groupadd b. useradd c. usermod d. chage
usermod
Which choice matches a portion of the command used to add bettyjane to the sales group? a. groupadd -G b. groupadd- g c. usermod -g d. usermod -G
usermod -G
Which of the following commands can be used to set the number of days until user account jsmith with an expired password is disabled? a. usermod -f 15 jsmith b. usermod -d 15 jsmith c. usermod -x 15 jsmith d. usermod -e 15 jsmith
usermod -f 15 jsmith
Which of the following is the first field of the /etc/passwd file? a. UID b. username c. GECOS d. GID
username
Which of the following is a special group that provides its members with the ability to run the su and sudo commands? a. sudoers b. adm c. wheel d. sys
wheel
Which command displays the name of the current logged in user? a. account b. who c. whoami d. user
whoami
Which parameter can you use with the ps command to display the active processes? [Choose all that apply.] a. -m b. -e c. -n d. -l e. -a
-a -e
Which of the following options can be used with the usermod command to change the description of the user account that is stored in the GECOS field? a. -g b. -d c. -c d. -s
-c
Which parameter should be used with the shutdown command to cancel a scheduled shutdown? a. -c b. -a c. -x d. -z
-c
Which parameter of the groupmod command allows you to change the group name? a. -a b. -c c. -p d. -n
-n
To display the current runlevel of the system, which parameter of the who command should be used? a. -r b. -b c. -a d. -u e. -x
-r
In what directory is Stage 2 of the GRUB2 boot loader stored? a. /boot b. /root c. /bin d. /
/boot
Which directory stores the cron configuration file? a. /etc/ b. /etc/mail c. /etc/crond d. /etc/cron
/etc/
A system administrator wants to allow most users to be able to run cron jobs, but wants to specifically prevent a couple of users from doing so. Which of the following files could the administrator edit to disallow these users from creating cron jobs? a. /etc/cron.deny b. /etc/cron.d/cron.deny c. /etc/cron.allow d. /etc/cron.d/cron.allow
/etc/cron.deny
In context of cron, which of the following is not the correct directory name? a. /etc/cron.hourly/ b. /etc/cron.monthly/ c. /etc/cron.daily/ d. /etc/cron.yearly/ e. /etc/cron.weekly/
/etc/cron.yearly/
Which file contains the Ubuntu boot settings? a. /etc/default/grub.config b. /etc/default/grubconf c. /etc/default/grub d. /etc/default/grub.conf
/etc/default/grub
Which directory stores most UNIX SysV rc scripts? a. /etc/rc5.d b. /etc/rc.d c. /etc/init.d d. /usr/local/systemd
/etc/init.d
What is the name of the file that contains a listing of all users on the system and their home directories? a. /etc/passwd b. /etc/users c. /etc/shadow d. /etc/password
/etc/passwd
What is the name of the directory that contains symbolic links to UNIX SysV rc scripts for runlevel 2? a. /etc/rc2.d b. /etc/init.d/rc2.d c. /etc/runlevel/2 d. /etc/inittab/rc2/d
/etc/rc2.d
Which directory stores the symbolic links for the Apache Web server? a. /etc/www/ b. /etc/rcX.d/ c. /etc/apache2/ d. /etc/httpd/
/etc/rcX.d/
The ________ file system is a virtual file system that is available in CentOS. a. /tmp b. /proc c. /home d. /swap
/proc
Most log files on the system are found in which directory? a. /etc/logfiles b. /etc/log c. /var/log d. /dev/log
/var/log
Which of the following files stores information about failed logins on a Linux system? a. /var/log/btmp b. /var/log/wtmp c. /var/log/nolo d. /var/log/failed
/var/log/btmp
The login data is retrieved from the latest ________ file. a. /var/log/sshd.log b. /var/log/messages c. /var/log/wtmp d. /var/log/log
/var/log/wtmp
Where are individual user tasks scheduled to run with the cron daemon stored on a Fedora system? a. /etc/crontab b. /etc/cron/username c. /var/spool/cron d. /var/spool/cron/username
/var/spool/cron/username
What is the default priority of a process? a. 19 b. 0 c. -20 d. 20 e. -19
0
Which runlevel halts the system? a. 1 b. 6 c. 0 d. 5
0
Which value will force immediate password expiration for a user account? a. 0 b. 1000 c. 100 d. 1 e. 10
0
Which of the following is the highest value that can be set for the nice value which would result in a greater chance of a lower priority? a. 20 b. 19 c. 10 d. 0
19
Which value of chmod will make the cupsd.conf file read-only? a. 144 b. 444 c. 777 d. 477
444
A Linux system that is configured to work in graphical mode, what is the run level? a. 3 b. 5 c. 1 d. 6
5
Which runlevel shuts down the system and then reboots it with the mentioned level as the default runlevel? a. 4 b. 6 c. 2 d. 5 e. 3 f. 1
6
What is the default port used by the Web Interface? a. 433 b. 8080 c. 631 d. 80
631
By default, what is the time period a user is warned before their password expires on a Red Hat Fedora system? a. 5 days b. 14 days c. 7 days d. 3 days
7 days
What kill level signal cannot be trapped? a. 1 b. 9 c. 3 d. 15
9
Which of the following statements is true? a. GRUB Legacy can be loaded from a MBR or GPT. b. After modifying /etc/default/grub, you must run the grub2-mkconfig command before the changes are made to GRUB2. c. GRUB2 can only be loaded from a UEFI System Partition. d. GRUB needs to be reinstalled after it has been modified.
After modifying /etc/default/grub, you must run the grub2-mkconfig command before the changes are made to GRUB2
Which of the following attributes are associated with a process? [Choose all that apply.] a. File descriptor table b. Process ID c. Current directory PWD d. Parent process ID
All of the above
For Ubuntu, what is the name of the Apache Web server package on Ubuntu? a. http b. Httpd c. Apache d. Apache2
Apache2
Which of the following settings can be configured under the Slow Keys section in Typing Assist dialog box? [Choose all that apply.] a. Beep when a key is accepted b. Beep when a key is released c. Beep when a key is pressed d. Beep when a key is rejected
Beep when a key is accepted Beep when a key is pressed Beep when a key is rejected
Along with a listing of user accounts, the /etc/passwd file contains information on account expiry. True or False? a. True b. False
False
What function does the usermod -U (username) perform? a. Changes the user's runlevel b. Lengthens the password expiration field in /etc/shadow c. Requires a login change monthly d. It requires a change to the disable 2 field in etc/shadow e. It unlocks the account
It unlocks the account
Which section of the /etc/rsyslog.conf file contains various configuration directives that are loaded when the module is loaded? a. Global Directives b. Templates c. Output Channels d. Modules e. Rules
Modules
What is the default state of the cupsd.conf file? a. Read-only for everyone except root b. Read-only for everyone c. Executable for everyone d. Writable for everyone
Read-only for everyone
Which parameter should you use to reload an application's configuration files without restarting the system? a. Reload b. Start c. Restart d. Reboot
Reload
Which of the following settings can be configured on the Typing Assist dialog box? [Choose all that apply.] a. Sticky Keys b. Drop Keys c. Slow Keys d. Bounce Keys
Sticky Keys Slow Keys Bounce Keys
When files or directories are deleted from a Linux system, the _______ process continues to reference them unless the process is reloaded. a. System b. Systemctl c. Daemon d. Boot
Systemctl
When you run the ps command, how are daemon processes recognized? a. The terminal is listed as tty0. b. There is a question mark in the TTY column. c. There is an asterisk in the STIME column. d. There is a "d" for daemon in the terminal identification column.
There is a question mark in the TTY column
As daemon processes are not associated with terminals, you must use an option such as -e alongside the ps command to view them. True or False? a. True b. False
True
Where is the Crosshairs setting located? a. Click Assist b. Repeat Keys c. Mouse Keys d. Zoom e. Visual Alerts f. Typing Assist
Zoom
The pkill command terminates _________. a. all instances of a process with the same PPID b. all instances of a process with the same PID c. all instances of a process with the same priority d. all instances of a process with the same name matched by a regular expression
all instances of a process with the same name matched by a regular expression
Which command is used to schedule jobs? a. atq b. cron c. at d. schedule
at
Which command is equivalent to the atrm command? a. at -l b. at -a c. at -c d. at -d e. at -f
at -d
Which command is equivalent to the atq command? a. at -c b. at -f c. at -l d. at -a
at -l
What is the term used to describe a user providing a user name and password to log in to a system? a. validation b. authorization c. login d. authentication
authentication
In the /etc/rsyslog.conf file, which of the following are examples of Facility? [Choose all that apply.] a. Kernel b. Action c. Security d. Level
Kernel Security
Which metacharacter is used to run a process in the background? a. & b. % c. > d. $
&
Which of the following is used to create a background process? a. # b. $ c. @ d. % e. &
&
Which parameter specifies that the command is related to a change of date? a. +%B b. +%T c. +%D d. +%C
+%D
Which parameter specifies that the command is related to a change of time? a. +%B b. +%D c. +%C d. +%T
+%T
Nice values are used to affect process priorities using a range between _____________. a. 0 and 20 b. 0 and -19 c. -19 and 20 d. -20 and 19
-20 and 19
To count the number of users logged in to the system, which parameters of the who command should be used? [Choose all that apply.] a. -u b. -a c. -b d. -x e. -H f. -q
-H -q
When you have more than one operating system, you can boot directly to the last operating system in the list. You will need to change the _______ setting. a. GRUB_HIDDEN b. GRUB_CMDLINE_LINUX c. GRUB_DEFAULT d. GRUB_DISTRIBUTOR
GRUB_DEFAULT
If you want to change the Ubuntu boot timing, which parameter should you edit? a. GRUB_TIMEOUT b. GRUB_DEFAULT c. GRUB_CMDLINE_LINUX d. GRUB_HIDDEN e. GRUB_DISTRIBUTOR
GRUB_TIMEOUT
Which assistive technology will make a desktop environment more accessible to a person with low vision? a. High Contrast b. Visual Alerts c. Repeat Keys d. Click Assist
High Contrast
A process spawning or initiating another process is referred to as _____. a. a child process b. forking c. branching d. parenting
forking
What Systemd target corresponds to runlevel 5? a. multi-user.target b. graphical.target c. system.target d. runlevel5.target
graphical.target
Which of the following commands will show the current runlevel along with the previous runlevel? (Choose all that apply.) a. runlevel b. telinit -r c. init -r d. echo $RUNLEVEL
runlevel
The at command is used to _______________. a. schedule processes to run periodically in the background b. schedule processes to run periodically on a recurring basis in the future c. schedule processes to run at a single instance in the future d. schedule processes to run in the foreground
schedule processes to run at a single instance in the future
Which command can you use to lock a user account? a. lock username b. secure username c. usermod -L username d. useradd -L username
usermod -L username
You want to configure the runlevels that a particular upstart daemon is started in. What should you do? a. Run the appropriate update-rc.d command b. Modify the contents of the /etc/rc[runlevel].d directories c. Modify the daemon configuration file within the /etc/init directory d. Run the appropriate systemctl command
Modify the daemon configuration file within the /etc/init directory
To display the list of users logged in to the system, which parameter of the who command should be used? a. -u b. -a c. -x d. -b
-u
Which parameter should you use with the hwclock command to set it as the system clock? a. -a b. -t c. -w d. -b
-w
Which file contains default information such as UID and GID ranges and minimum password length to be used at user creation? a. /etc/skel b. /etc/passwd c. /etc/login.defs d. /etc/default/useradd
/etc/login.defs
In which of the following directories can you place files that will be copied to new user directories when new users are created? a. /etc/rc.d b. /etc/skel c. /usr/local/template d. /usr/local/useradd
/etc/skel
Which of the following statements is true? (Choose all that apply.) a. If /etc/at.allow exists, only users listed in it can use the at command. b. If /etc/cron.allow exists, only users listed in it can use the cron command. c. If /etc/cron.deny exists and /etc/cron.allow does not exist, any user not listed in /etc/cron.deny can use the cron command. d. If /etc/cron.allow and /etc/cron.deny exist, only users listed in the former can use the cron command and any listed in the latter are denied access to the cron command. e. If a user is listed in both /etc/cron.allow and /etc/cron.deny, then /etc/cron.deny takes precedence and the user cannot access the crontab command.
If /etc/at.allow exists, only users listed in it can use the at command If /etc/cron.allow exists, only users listed in it can use the cron command If /etc/cron.deny exists and /etc/cron.allow does not exist, any user not listed in /etc/cron.deny can use the cron command
When a new date is set with the date command, what is the default format? a. YY-MM-DD b. DD-MM-YYYY c. MM-DD-YYYY d. YYYY-MM-DD
YYYY-MM-DD
How can you bypass the wait function and send a user process to the background? a. This cannot happen once a process is executing; it can be done only when the command is started by placing an ampersand (&) after it. b. This cannot happen; only daemon processes can run in the background. c. You can use the ps command. d. You can use the Ctrl+z key combination and the bg command.
You can use the Ctrl+z key combination and the bg command
The first daemon loaded on a Linux system is _____. a. initstate b. inittab c. init d. linux
init
Which command can be used to send a print job to the default printer named Printer1? (Choose all that apply.) a. lp -d Printer1 file b. lp Printer1 file c. lp file d. lp -m Printer1 file
lp -d Printer1 file lp file
Which command will list all active processes that are running on a Linux system? a. list b. ps c. top d. nice
top