102-500 exam

What benefit does an alias in bash provide?A . It provides faster lookups for commands in the system directory.B . It creates a local copy of a file from another directory.C . It hides what command you are running from others.D . It allows a string to be substituted for...

Topic 1, Shells, Scripting and Data Management 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; doneA . result: 3 4 5 6 2 1B . result: 1 2 3 4 5...

What is the purpose of the Sticky Keys feature in X?A . To assist users who have difficulty holding down multiple keys at onceB . To prevent repeated input of a single character if the key is held downC . To ignore brief keystrokes according to a specified time limitD...

The X11 configuration file xorg.conf is grouped into sections. How is the content of the section SectionName associated with that section?A . It is placed in curly brackets as in Section SectionName { ... }.B . It is placed between a line containing Section "SectionName" and a line containing EndSection.C...

Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)View AnswerAnswer: groupadd, /usr/sbin/groupadd Explanation: The groupadd command is used to add an empty group to the system. It takes the name of the group as an argument and creates...

Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)View AnswerAnswer: /etc/at.deny Explanation: The /etc/at.deny file specifies the user accounts that can NOT submit jobs via at or batch. The format of the file is a list of usernames,...

Which of the following SQL statements will select the fields name and address from the contacts table?A . SELECT (name, address) FROM contacts;B . SELECT (name address) FROM contacts;C . SELECT name, address FROM contacts;D . SELECT name address FROM contacts;View AnswerAnswer: C Explanation: The correct syntax for selecting specific...

Which crontab entry could be used to set the system time at regular intervals?A . 1 0 * * * date $d $t $24B . 1 0 * * * ntpdate ntp1.digex.netC . 1 0 * * * date ntp1.digex.netD . 1 0 * * * runcron date ntp1.digex.netE ....

What is NOT contained in the locale setting of the operating system?A . currency symbolB . languageC . timezoneD . thousands separatorView AnswerAnswer: C Explanation: The locale setting of the operating system is a set of environmental variables that defines the language, country, and character encoding settings (or any other...