diff --git a/data/lpic1from_ad_101_500.csv b/data/lpic1from_ad_101_500.csv
index 6e12ca3..103d3e2 100644
--- a/data/lpic1from_ad_101_500.csv
+++ b/data/lpic1from_ad_101_500.csv
@@ -3,13 +3,10 @@
 "101-500","3","Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination?","/etc/keys","/proc/keys","/etc/inittab","/proc/inittab","/etc/reboot"
 "101-500","1 3","Which of the following commands reboots the system when using SysV init? (Choose TWO correct answers.)","shutdown -r now","shutdown -r 'rebooting',"telinit 6","telinit 0","shutdown -k now 'rebooting'"
 "101-500","3 4","Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct answers.)","shutdown -R 1 now","shutdown -single now","init 1","telinit 1","runlevel 1"
-"101-500","1","Which command displays the contents of the Kernel Ring Buffer on the command line? (Provide only the command name without any options or path information)","Mastered","Not Mastered","","",""
 "101-500","5","Which of the following options for the kernel's command line changes the systemd boot target to rescue.target instead of the default target?","systemd.target=rescue.target","systemd.runlevel=rescue.target","systemd.service=rescue.target","systemd.default=rescue.target","systemd.unit=rescue.target"
 "101-500","2 4","What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct answers.)","Entries for all possible devices get created on boot even if those devices are not connected.","Additional rules for udev can be created by adding them to /etc/udev/rules.d/.","When using udev, it is not possible to create block orcharacter devices in /dev/ using mknod.","The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup.","The content of /dev/ is stored in /etc/udev/dev and is restored during system startup."
-"101-500","1","What is the name of the main configuration file for GNU GRUB? (Specify the file name only without any path.)","Mastered","Not Mastered","","",""
 "101-500","3","To what environment variable will you assign or append a value if you need to tell the dynamic linker to look in a build directory for some of a program's shared
 libraries?","LD_LOAD_PATH","LD_LIB_PATH","LD_LIBRARY_PATH","LD_SHARE_PATH","LD_RUN_PATH"
-"101-500","1","To prevent users from being able to fill up the / partition, the ______ directory should be on a separate partition if possible because it is world writeable.","Mastered","Not Mastered","","",""
 "101-500","1 2 4","When using rpm --verify to check files created during the installation of RPM packages, which of the following information is taken into consideration? (Choose
 THREE correct answers.)","Timestamps","MD5 checksums","Inodes","File sizes","GnuPG signatures"
 "101-500","2","Which of the following commands can be used to perform a full text search on all available packages on a Debian system?","apt","apt-cache","apt-get","apt-search","dpkg"