LPI (Linux Professional Institute)-LPI Level 1 Exam 102, Junior Level Linux Certification, Part 2 of 2 (2) Set 1

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✘ - ✘ s ✘ x ✔

groupdel ✘ groupmod ✘ groups ✘ groupedit ✔

It converts bitmap images from one format to another such as PNG to JPEG. ✘ It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard(FHS). ✘ It displays additional meta information from icon files ending in .ico. ✘ It changes the mode of an inode in the ext4 file system. ✔ It converts files from one character encoding to another. ✔

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. ✔

grouprm ✘ groupmod ✘ passwd ✘ usergroups ✔ usermod ✔

In the database file /etc/crontab.db which is shared by all users. ✘ As individual per-user files within /var/spool/cron. ✘ As individual per-user files in /etc/cron.user.d. ✘ In the .crontab file in the user's home directory. ✔ In the file /var/cron/user-crontab which is shared by all users. ✔

/etc/gshadow ✘ /etc/passwd ✘ /etc/pwdlog ✘ /etc/shadow ✔ /var/log/shadow ✔

Tab ✘ Space ✘ Backslash ✘ Newline ✔

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]. ✔

0 * * * 30 myscript

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30 * * * 6 myscript

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30 0 * * 0 myscript

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30 0-23 * * 0 myscript

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0 0-23 * * 30 myscript

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