102-500 exam

Which of the following lines is an example of a correct setting for the DISPLAY environment variable?A . hostname:displaynameB . hostname:displaynumberC . hostname/displaynameD . hostname/displaynumberE . hostnameView AnswerAnswer: B Explanation: The correct format for the DISPLAY environment variable is hostname:displaynumber.screennumber, where hostname is the name of the computer where the...

Which of the following can the chage command NOT change?A . The number of days since January 1, 1970 after which the user's account will no longer be accessible.B . The number of days since January 1, 1970 after which the password can change.C . The number of days since...

What is the default name of the configuration file for the Xorg X11 server? (Specify the file name only without any path.)View AnswerAnswer: xorg.conf Explanation: The default name of the configuration file for the Xorg X11 server is xorg.conf. This file is used to store initial setup for X, such...

What is true about the file /etc/localtime?A . It is a plain text file containing a string such as Europe/BerlinB . It is created and maintained by the NTP service based on the location of the system’s IP address.C . It is a symlink to /sys/device/clock/ltime and always contains the...

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 . The user issuing the command must be in the group script.B . The script file must be found in the $PATH.C . The...

Which TWO statements about crontab are true? A. Every user may have their own crontab. B. Changing a crontab requires a reload/restart of the cron daemon. C. The cron daemon reloads crontab files automatically when necessary. D. hourly is the same as "0 * * * *". E. A cron...

Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)A . ~/.bashconfB . ~/.bashrcC . ~/.bashdefaultsD . ~/.bash_etcE . ~/.bash_profileView AnswerAnswer: B, E Explanation: The Bash shell can be configured by various files that affect its behavior, such as setting environment variables,...

What is the main difference between the batch and at commands?A . The batch command will run multiple times.The at command will only run once.B . The batch command will run when system load is low. The at command runs at a specific time.C . The at command reads commands...

For accessibility assistance, which of the following programs is an on-screen keyboard? A. xkb B. atkb C. GOK D. xOSKView AnswerAnswer: C Explanation: GOK stands for GNOME On-screen Keyboard, and it is a program that provides a virtual keyboard for users who have difficulty using a physical keyboard. GOK is...

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.)View AnswerAnswer: xdm Explanation: The name of the simple graphical login manager that comes with a vanilla X11 installation is xdm. XDM is the traditional...