102-400 Exam Questions

Which configuration file would be edited to change default options for the OpenSSH server?

Which of the following find commands will print out a list of files owned by root and with the SUID bit set in /usr?

Which command makes the shell variable named VARIABLE visible to subshells?

What output will the command seq 10 produce?

After issuing: function myfunction { echo $1 $2 ; } in Bash, which output does: myfunction A B C Produce?

Which of the following commands puts the output of the command date into the shell variable mydate?

Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)

What is the difference between the commands test -e path and test -f path?

How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only?

To prevent a specific user from scheduling tasks with at, what should the administrator do?

Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?

Which of the following files assigns a user to its primary group?

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)?

Which commands can be used to change a user's account aging information? (Choose THREE correct answers.)

What is NOT contained in the locale setting of the operating system?

What is true about the file /etc/localtime?

What output will the following command produce? seq 1 5 20

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?

Which of the following commands lists all defined variables and functions within Bash?

Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?

What is the purpose of the file /etc/profile?

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.)

Which file used by XDM specifies the default wallpaper?

The X11 configuration file xorg.conf is grouped into sections. How is the content of the section SectionName associated with that section?

Which of the following commands preloads and manages keys that are used for automatic authentication while logging in to other machines using SSH?

What is a purpose of an SSH host key?

Which of the following commands can be used to limit the amount of memory a user may use?

Which of the following commands connects to the remote host example.com which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.)

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

When the command echo $ outputs 1, which of the following statements is true?

Which of the following tasks can be accomplished using the command date? (Choose TWO correct answers.)

Which of the following are syslog facilities? (Choose TWO correct answers.)

What is the purpose of the command mailq?

Which file inside the CUPS configuration directory contains the definition of the printers?

What is true regarding the command sendmail?

You are looking into a new script you received from your senior administrator. In the very first line you notice a #! followed by a file path. This indicates that:

Which of the following is the best way to list all defined shell variables?

Which command will print the exit value of the previous command to the screen in bash?

Within smb. conf, which security setting will NOT require that a client connect using a valid usernarne and password before connecting to a shared resource?

Which of the following lines would you find in the file /etc/nsswitch.conf?

Which command is used to display user resource limits?

Your department decided to change the Gnome Display Manager's greeting. What configuration file should you edit?

You want to make the directory /home/tess available via NFS. Which option do you have to use to grant read permission for the root user on the NFS mounted file system?

Which command allows you to make a shell variable visible to subshells?

Which of the following SQL statements will select the fields name and address from the contacts table?

What benefit does an alias in bash provide?

What keyword is missing from this code sample of a shell script? ____ i in *.txt; do echo $i done

What is the purpose of the Sticky Keys feature in X?

On a system running the KDE Display Manager, when is the /etc/kde4/kdm/Xreset script automatically executed?

Why is the xhost program considered dangerous to use?