LPI 101-500

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1.- Which kernel parameter controls the console verbosity at boot (quiet vs verbose)?

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2.- To view the system’s last reboot reason via systemd, which command helps?

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3.- Which tool on Debian/Ubuntu lists kernel packages installed so you can match /lib/modules folders?

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4.- Which systemd directive makes a unit start automatically at boot?

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5.- When troubleshooting a failed boot, which of these is the most useful first step?

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6.- Which command will list active targets and their dependencies?

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7.- How do you instruct GRUB to boot a kernel with a different root device only for this boot?

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8.- Which file may be used to blacklist an initramfs hook or module in dracut?

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9.- What command returns the current and previous runlevels on a SysV system?

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10.- Which is the safe sequence to shutdown the machine and power off using SysV utilities?

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11.- Which command is used to list all partitions on all disks?

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12.- Which tool is used to create or modify GPT partition tables?

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13.- Which command displays information about block devices in a tree structure?

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14.- What is the maximum number of primary partitions allowed in an MBR disk?

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15.- Which partition type is used to contain logical partitions in MBR?

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16.- Which utility displays filesystem UUIDs and types?

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17.- What is the purpose of the mkswap command?

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18.- Which command activates all swap areas listed in /etc/fstab?

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19.- Which tool can resize partitions interactively on a running system?

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20.- What command displays the total swap usage?

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21.- Which LVM command creates a physical volume?

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22.- Which file contains partition information for traditional systems?

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23.- Which command initializes a volume group in LVM?

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24.- Which tool is used to create logical volumes?

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25.- Which command extends an existing logical volume?

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26.- Which file defines partitions mounted automatically at boot?

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27.- What is the function of vgextend?

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28.- Which command displays all existing volume groups?

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29.- What command is used to create a GPT partition table?

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30.- Which tool is used to create a new filesystem on a partition?

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31.- Which command can display filesystem usage and available space?

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32.- What is the name of the metadata area in an LVM physical volume?

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33.- What is the smallest unit of allocation in LVM?

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34.- Which tool displays UUIDs for swap and partitions?

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35.- Which command creates a swap file of 1 GB size?

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36.- Which command displays detailed information about logical volumes?

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37.- Which command creates a snapshot of a logical volume?

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38.- What is the main purpose of an LVM snapshot?

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39.- Which command removes a logical volume?

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40.- To resize a filesystem after extending an LVM volume, which command is used for ext4 filesystems?

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41.- What must be done before reducing a logical volume’s size?

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42.- Which LVM command deactivates a volume group?

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43.- What is the default size unit for LVM extents?

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44.- Which command creates a new swap area on an existing partition?

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45.- How can you permanently enable a swap file?

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46.- Which command shows all currently active swap areas?

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47.- Which filesystem type is used for Linux swap space?

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48.- What happens when physical memory is exhausted and no swap is available?

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49.- Which command converts an MBR disk to GPT safely (non-destructive)?

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50.- Which partition flag marks a partition as bootable in MBR?

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51.- How can you view partition table type (MBR or GPT)?

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52.- Which tool is preferred for managing GPT disks interactively?

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53.- What is the purpose of the /etc/lvm/backup/ directory?

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54.- Which command shows the mapping between logical and physical extents?

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55.- Which LVM command removes a volume group?

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56.- Which command initializes a disk as an LVM physical volume?

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47.- Which command lists all volume groups on the system?

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58.- How can you identify all physical volumes currently present?

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49.- Which command enables you to label a partition manually?

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60.- Which command verifies the integrity of an ext4 filesystem?