102-500 Exam Questions

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

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 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 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?

When the command echo $$ outputs 12942, what is the meaning of 12942?

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 preloads and manages keys that are used for automatic authentication while logging in to other machines using SSH?

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

Which of the following configuration files should be modified to set default shell variables for all users?

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

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

Which of the following words is used to restrict the records that are returned from a SELECT query based on a supplied criteria for the values in the records?

What benefit does an alias in bash provide?

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:

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

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?

How is a display manager started?

Which of the following commands shows the current color depth of the X Server?

For accessibility assistance, which of the following programs is an on-screen keyboard?

Which of the following are tasks handled by a display manager like XDM or KDM? (Choose two correct answers.)

X is running okay but you're concerned that you may not have the right color depth set. What single command will show you the running color depth while in X?

Your senior administrator asked you to change the default background of his machine, which uses XDM. Which file would you edit to achieve this?

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

Why is the xhost program considered dangerous to use?

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

Which of the following lines is an example of a correct setting for the DISPLAY environment variable?

Which of the following fields are available in both the global /etc/crontab file as well as in user- specific crontab files? (Select TWO correct answers)

Which command can be used to delete a group from a Linux system?

Which of the following commands can remove a user from a group?

Where are user specific crontabs stored?

Which file contains the date of the last change of a user's password?

Each entry in a crontab must end with what character?

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

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 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 regarding the command userdel --force --remove bob? (Choose two correct answers.)

Which of the following fields can be found in the /etc/group file? (Choose THREE correct answers.)

Which configuration file would be edited to change the default options for outbound SSH sessions?

Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?