The Latest LX0-104 Exam ☆ Instant Download ☆ Free Update for 180 Days
Vendor: CompTIA Exam Code: LX0-104 Exam Name: CompTIA Linux+ [Powered by LPI] 2 Version: 13.01 Q & As: 120
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The Latest LX0-104 Exam ☆ Instant Download ☆ Free Update for 180 Days
QUESTION 1 What word is missing from the following SQL statement? __________ count(*) from tablename; (Please specify the missing word using lower-case letters only.) Correct Answer: select
QUESTION 2 When the command echo $$ outputs 12942, what is the meaning of 12942? A. B. C. D.
It is the process ID of the echo command. It is the process ID of the current shell. It is the process ID of the last command executed. It is the process ID of the last command which has been placed in the background.
Correct Answer: B
QUESTION 3 By default, the contents of which directory will be copied to a new user's home directory when the account is created by passing the -m option to the useradd command? (Specify the full path to the directory.) Correct Answer: /etc/skel
QUESTION 4 What output will the following command produce? seq 1 5 20 A. 1 6 1 1 1 6 B. 1 5 10 15 C. 1 2 3 4 D. 2 3 4 5 E. 5 10 Guaranteed Success with EnsurePass VCE Software & PDF File
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15 20 Correct Answer: A
QUESTION 5 What is the purpose of the file /etc/profile? A. B. C. D.
It contains the welcome message that is displayed after login. It contains security profiles defining which users are allowed to log in. It contains environment variables that are set when a user logs in. It contains default application profiles for users that run an application for the first time.
Correct Answer: C
QUESTION 6 Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.) A. B. C. D. E.
~/.bashconf ~/.bashrc ~/.bashdefaults ~/.bash_etc ~/.bash_profile
Correct Answer: BE
QUESTION 7 What output will the command seq 10 produce? A. B. C. D.
A continuous stream of numbers increasing in increments of 10 until stopped. The numbers 1 through 10 with one number per line. The numbers 0 through 9 with one number per line. The number 10 to standard output.
Correct Answer: B
QUESTION 8 When the command echo $ outputs 1, which of the following statements is true? A. B. C. D.
It is the process ID of the echo command. It is the process ID of the current shell. It is the exit value of the command executed immediately before echo. It is the exit value of the echo command.
Correct Answer: C
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QUESTION 9 After issuing: function myfunction { echo $1 $2 ; } in Bash, which output does: myfunction A B C Produce? A. B. C. D. E.
AB ABC AC BC CBA
Correct Answer: A
QUESTION 10 Which command makes the shell variable named VARIABLE visible to subshells? A. B. C. D. E.
export $VARIABLE export VARIABLE set $VARIABLE set VARIABLE env VARIABLE
Correct Answer: B
QUESTION 11 Which of the following commands puts the output of the command date into the shell variable mydate? A. B. C. D. E.
mydate="$(date)" mydate="exec date" mydate="$((date))" mydate="date" mydate="${date}"
Correct Answer: A
QUESTION 12 What word is missing from the following SQL statement? insert into tablename ________(909, 'text'); (Please specify the missing word using lower-case letters only.) Correct Answer: VALUES, values Guaranteed Success with EnsurePass VCE Software & PDF File
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QUESTION 13 What command displays all aliases defined in the current shell? (Specify the command without any path information) Correct Answer: alias, alias -p
QUESTION 14 Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders? A. B. C. D. E.
SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type; SELECT order_type,COUNT(*) FROM orders GROUP BY order_type; COUNT(SELECT order_type FROM orders); SELECT COUNT(*) FROM orders ORDER BY order_type; SELECT AUTO_COUNT FROM orders COUNT order_type;
Correct Answer: B
QUESTION 15 Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a supplied criteria for the values in the records? A. B. C. D.
CASE FROM WHERE IF
Correct Answer: C
QUESTION 16 How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only? A. B. C. D.
unset -v FOOBAR;./myscript set -a FOOBAR="";./myscript env -u FOOBAR./myscript env -i FOOBAR./myscript
Correct Answer: C
QUESTION 17 Which of the following are requirements in order to run a shell script like a regular command from anywhere in the filesystem? (Choose THREE correct answers.) A. B. C. D. E.
The user issuing the command must be in the group script. The script file must be found in the $PATH. The script file must have the executable permission bit set. The script must begin with a shebang-line (#!) that points to the correct interpreter. The file system on which the script resides must be mounted with the option scripts. Guaranteed Success with EnsurePass VCE Software & PDF File
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Correct Answer: BCD
QUESTION 18 Which of the following commands lists all defined variables and functions within Bash? A. B. C. D.
env set env -a echo $ENV
Correct Answer: B
QUESTION 19 What is the difference between the commands test -e path and test -f path? A. B. C. D.
They are equivalent options with the same behaviour. The -f option tests for a regular file. The -e option tests for an empty file. Both options check the existence of the path. The -f option also confirms that it is a regular file. The -f option tests for a regular file. The -e option tests for an executable file.
Correct Answer: C
QUESTION 20 What output will the following command sequence produce? echo '1 2 3 4 5 6' | while read a b c; do echo result: $c $b $a; done A. B. C. D. E.
result: 3 4 5 6 2 1 result: 1 2 3 4 5 6 result: 6 5 4 result: 6 5 4 3 2 1 result: 3 2 1
Correct Answer: A
QUESTION 21 How is a display manager started? A. B. C. D.
It is started by a user using the command startx. It is started like any other system service by the init system. It is started by inetd when a remote hosts connects to the X11 port. It is started automatically when a X11 user logs in to the system console.
Correct Answer: B
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QUESTION 22 What is the purpose of a screen reader? A. B. C. D.
It reads text displayed on the screen to blind or visually impaired people. It reads the parameters of the attached monitors and creates an appropriate X11 configuration. It displays lines and markers to help people use speed reading techniques. It manages and displays files that contain e-books.
Correct Answer: A
QUESTION 23 For accessibility assistance, which of the following programs is an on-screen keyboard? A. B. C. D.
xkb atkb GOK xOSK
Correct Answer: C
QUESTION 24 What is the default name of the configuration file for the Xorg X11 server? (Specify the file name only without any path.) Correct Answer: xorg.conf
QUESTION 25 Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.) Correct Answer: /usr/bin/xwininfo, xwininfo
QUESTION 26 The X11 configuration file xorg.conf is grouped into sections. How is the content of the section SectionName associated with that section? A. B. C. D. E.
It is placed in curly brackets as in Section SectionName { ... }. It is placed between a line containing Section "SectionName" and a line containing EndSection. It is placed between the tags <Section name="SectionName"> and </Section> It is placed after the row [SectionName]. It is placed after an initial unindented Section "SectionName" and must be indented by exactly one tab character.
Correct Answer: B
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QUESTION 27 Which of the following are tasks handled by a display manager like XDM or KDM? (Choose TWO correct answers.) A. B. C. D. E.
Start and prepare the desktop environment for the user. Configure additional devices like new monitors or projectors when they are attached. Handle the login of a user. Lock the screen when the user was inactive for a configurable amount of time. Create an X11 configuration file for the current graphic devices and monitors.
Correct Answer: AC
QUESTION 28 Which file used by XDM specifies the default wallpaper? A. B. C. D.
/etc/X11/xdm/Xsetup /etc/X11/xdm.conf /etc/X11/xdm/Defaults /etc/X11/defaults.conf
Correct Answer: A
QUESTION 29 Which of the following commands shows the current color depth of the X Server? A. B. C. D. E.
xcd xcdepth xwininfo xcolordepth cat /etc/X11
Correct Answer: C
QUESTION 30 What is the name of the simple graphical login manager that comes with a vanilla X11 installation? (Specify ONLY the command without any path or parameters.) Correct Answer: xdm
QUESTION 31 Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.) Correct Answer: groupadd, /usr/sbin/groupadd
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QUESTION 32 Which of the following commands can remove a user from a group? A. B. C. D. E.
grouprm groupmod passwd usergroups usermod
Correct Answer: E
QUESTION 33 Which of the following steps prevents a user from obtaining an interactive login session? A. B. C. D. E.
Run the command chsh -s /bin/false with the user name. Set the UID for the user to 0. Remove the user from the group staff. Add the user to /etc/noaccess. Create a .nologin file in the user's home directory.
Correct Answer: A
QUESTION 34 Which file contains the date of the last change of a user's password? A. B. C. D. E.
/etc/gshadow /etc/passwd /etc/pwdlog /etc/shadow /var/log/shadow
Correct Answer: D
QUESTION 35 Which command can be used to delete a group from a Linux system? A. B. C. D.
groupdel groupmod groups groupedit
Correct Answer: A
QUESTION 36 What is NOT contained in the locale setting of the operating system? A. currency symbol B. language Guaranteed Success with EnsurePass VCE Software & PDF File
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C. timezone D. thousands separator Correct Answer: C
QUESTION 37 The system's timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information) Correct Answer: /usr/share/zoneinfo/
QUESTION 38 Which commands can be used to change a user's account aging information? (Choose THREE correct answers.) A. B. C. D. E.
usermod passwd chattr chage chsh
Correct Answer: ABD
QUESTION 39 Which of the following fields are available in both the global /etc/crontab file as well as in userspecific crontab files? (Select TWO correct answers) A. B. C. D.
Year Minute Username Command
Correct Answer: BD
QUESTION 40 In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true? A. B. C. D.
Without additional configuration, no users may have user specific crontabs. Without additional configuration, all users may have user specific crontabs. The cron daemon will refuse to start and report missing files in the system's logfile. When a user creates a user specific crontab the system administrator must approve it explicitly.
Correct Answer: A
QUESTION 41 Which of the following files assigns a user to its primary group? A. /etc/pgroup Guaranteed Success with EnsurePass VCE Software & PDF File
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B. C. D. E.
/etc/shadow /etc/group /etc/passwd /etc/gshadow
Correct Answer: D
QUESTION 42 What is the purpose of the iconv command? A. It converts bitmap images from one format to another such as PNG to JPEG. B. It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS). C. It displays additional meta information from icon files ending in .ico. D. It changes the mode of an inode in the ext4 file system. E. It converts files from one character encoding to another. Correct Answer: E
QUESTION 43 Which of the following commands should be added to /etc/bash_profile in order to change the language of messages for an internationalized program to Portuguese (pt)? A. B. C. D. E.
export LANGUAGE="pt" export MESSAGE="pt" export UI_MESSAGES="pt" export LC_MESSAGES="pt" export ALL_MESSAGES="pt"
Correct Answer: D
QUESTION 44 To prevent a specific user from scheduling tasks with at, what should the administrator do? A. B. C. D. E.
Add the specific user to /etc/at.allow file. Add the specific user to [deny] section in the /etc/atd.conf file. Add the specific user to /etc/at.deny file. Add the specific user to nojobs group. Run the following: atd --deny [user].
Correct Answer: C
QUESTION 45 Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow? A. * B. Guaranteed Success with EnsurePass VCE Software & PDF File
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