Q1. Which partition holds user home directories?
- A./
- B./home✓ Correct
- C./var
- D./usr
Explanation: /home is the standard mount point for user directories. Learn more.
CompTIA Linux+ Practice Questions: Storage
25 free, exam-style CompTIA Linux+ (XK0-006) practice questions covering Storage. Each question shows the correct answer and a clear explanation. Ready for the real thing? Take the full timed quiz below.
Q2. What is the purpose of /etc/fstab?
- A.Define filesystems to mount at boot✓ Correct
- B.Store user passwords
- C.Configure firewall rules
- D.List cron jobs
Explanation: fstab contains static filesystem mount information. Learn more.
Q3. Which command creates a LVM physical volume?
- A.pvcreate✓ Correct
- B.vgcreate
- C.lvcreate
- D.mkfs.lvm
Explanation: pvcreate initializes disks/physical partitions for LVM. Learn more.
Q4. What command encrypts a partition with LUKS?
- A.cryptsetup luksFormat✓ Correct
- B.luksCreate
- C.mkfs.luks
- D.encryptfs
Explanation: luksFormat initializes LUKS encryption on a block device. Learn more.
Q5. Which RAID level provides striping with double parity?
- A.RAID 0
- B.RAID 5
- C.RAID 6✓ Correct
- D.RAID 10
Explanation: RAID 6 uses two parity blocks per stripe for fault tolerance. Learn more.
Q6. What command creates a logical volume in LVM?
- A.lvcreate✓ Correct
- B.vgcreate
- C.pvcreate
- D.mkfs.lvm
Explanation: lvcreate creates logical volumes from volume groups. Learn more.
Q7. What command converts a disk to GPT partitioning?
- A.fdisk
- B.parted
- C.gdisk✓ Correct
- D.mkfs.gpt
Explanation: gdisk handles GPT partitioning (fdisk for MBR). Learn more.
Q8. What command displays disk space usage by filesystem?
- A.df✓ Correct
- B.du
- C.free
- D.lsblk
Explanation: df shows mounted filesystems' disk usage. Learn more.
Q9. What command checks filesystem errors?
- A.fsck✓ Correct
- B.chkdsk
- C.diskpart
- D.badblocks
Explanation: fsck checks and repairs Linux filesystems. Learn more.
Q10. Which directory holds temporary mount points?
- A./mnt
- B./media
- C./tmp
- D./run✓ Correct
Explanation: /run contains volatile runtime data including mounts. Learn more.
Q11. Which command shows disk partition table?
- A.fdisk -l
- B.lsblk
- C.parted -l
- D.All of the above✓ Correct
Explanation: All commands display partition information. Learn more.
Q12. What command lists block devices?
- A.lsblk
- B.blkid
- C.fdisk -l
- D.All of the above✓ Correct
Explanation: All commands display block device information. Learn more.
Q13. What does 'dd if=/dev/zero of=/swapfile bs=1M count=2048' do?
- A.Create 2GB swap file✓ Correct
- B.Wipe disk securely
- C.Backup partition table
- D.Test disk speed
Explanation: Creates 2048x1MB blocks = 2GB swap file. Learn more.
Q14. What command repairs XFS filesystems?
- A.xfs_repair✓ Correct
- B.fsck.xfs
- C.xfsadmin --fix
- D.xfs_check
Explanation: xfs_repair checks/repairs XFS filesystems. Learn more.
Q15. What does 'lvconvert --merge' do in LVM?
- A.Merge two logical volumes
- B.Activate a snapshot✓ Correct
- C.Convert linear to striped volume
- D.Repair broken mirror
Explanation: Merges snapshot into origin volume. Learn more.
Q16. Which command creates a GPT partition table?
- A.fdisk
- B.parted
- C.gdisk✓ Correct
- D.cfdisk
Explanation: gdisk handles GPT partitioning. Learn more.
Q17. What is the purpose of 'swapoff -a'?
- A.Disable all swap spaces✓ Correct
- B.Show swap usage
- C.Encrypt swap
- D.Create swap file
Explanation: Disables swap devices/files temporarily. Learn more.
Q18. Which command creates a Btrfs subvolume?
- A.btrfs subvolume create✓ Correct
- B.mkfs.btrfs -S
- C.btrfs volume add
- D.subvolmkfs btrfs
Explanation: Creates new subvolume in Btrfs filesystem. Learn more.
Q19. Which file usually defines persistent filesystem mounts?
- A./etc/fstab✓ Correct
- B./etc/hosts
- C./etc/resolv.conf
- D./etc/shells
Explanation: /etc/fstab contains filesystem mount definitions used during boot and by mount commands. Learn more.
Q20. Which command displays block devices in a tree format?
- A.lsblk✓ Correct
- B.lsmod
- C.lsof -i
- D.lastlog
Explanation: lsblk lists block devices such as disks, partitions, and logical volumes. Learn more.
Q21. Which command shows filesystem disk usage by mounted filesystem?
- A.df -h✓ Correct
- B.du -sh /proc
- C.chmod -R
- D.passwd -l
Explanation: df -h reports available and used space for mounted filesystems. Learn more.
Q22. Which command creates an ext4 filesystem on a partition?
- A.mkfs.ext4 /dev/sdb1✓ Correct
- B.mount.ext4 /dev/sdb1
- C.lsblk.ext4 /dev/sdb1
- D.chmod.ext4 /dev/sdb1
Explanation: mkfs.ext4 formats a block device with an ext4 filesystem. Learn more.
Q23. Which LVM command moves allocated physical extents away from a disk before that disk is removed from a volume group?
- A.pvscan --detach DEVICE
- B.vgchange --migrate DEVICE
- C.pvmove DEVICE✓ Correct
- D.lvconvert --eject DEVICE
Explanation: pvmove relocates allocated extents from one physical volume to other available physical volumes in the same volume group. Learn more.
Q24. Which LVM command extends a logical volume and resizes its filesystem in the same operation?
- A.pvresize -m
- B.lvextend -r✓ Correct
- C.vgchange -s
- D.lvs --growfs
Explanation: The -r option tells lvextend to invoke the appropriate filesystem resize helper after increasing the logical volume. Learn more.
Q25. After extending the underlying logical volume, which command grows a mounted XFS filesystem?
- A.resize2fs MOUNT_POINT
- B.xfs_repair --grow MOUNT_POINT
- C.xfs_growfs MOUNT_POINT✓ Correct
- D.mount --extend MOUNT_POINT
Explanation: xfs_growfs expands an XFS filesystem online and is normally given the filesystem's mount point. Learn more.