LFCS Linux Storage Administration Quiz

1. Which command displays the current disk usage per directory?

Du -h

Df -h

Ls -la

Stat /directory

2. What is the primary advantage of using LVM over traditional partitioning?

Faster read/write speeds

Ability to resize volumes without unmounting

Better security and encryption

Improved data redundancy

3. Which command identifies the UUID of a filesystem?

Blkid

Uuidgen

Ls -uuid /dev

Getfs /dev/sda1

4. What is the significance of the 'defaults' option in /etc/fstab?

Applies rw, suid, dev, exec, auto, nouser, async

Mounts filesystem read-only

Disables all mount options

Sets maximum file size limit

5. Which utility is used to create and manage RAID arrays on Linux?

Mdadm

Raidctl

Lvm

Fdisk

6. How do you extend a logical volume by 2GB using LVM?

Lvextend -L +2G /dev/vg_name/lv_name

Lvincrease -2G /dev/vg_name/lv_name

Lvresize --size +2G /dev/vg_name/lv_name

Lvgrow +2G lv_name

7. Which command lists all available block devices and their mount points?

Lsblk

Blkid

Fdisk -l

Mount | grep /dev

8. What does the 'noatime' option in fstab prevent?

Write operations to disk

Reading file access times

Recording file access time metadata

Mounting at boot

9. Which command resizes an ext4 filesystem to use all available space?

Resize2fs /dev/sda1

Fsck -R /dev/sda1

Parted resize /dev/sda1

Extresize /dev/sda1

10. What is the purpose of the /etc/fstab file's last column (pass number)?

Defines mount order at boot

Determines fsck check order

Sets filesystem priority

Controls user access level

11. Which command displays partition information and disk usage on a Linux system?

Fdisk -l

Lsblk

Parted -l

All of the above

12. How do you create a new logical volume in LVM?

Lvcreate -L 5G -n lv_name vg_name

Lvmcreate -s 5G lv_name

Pvcreate /dev/sda1

Vgcreate vg_name /dev/sda1

13. Which LVM component represents a physical storage device?

Logical Volume

Physical Volume

Volume Group

Extent

14. What does 'fsck' stand for in Linux filesystem maintenance?

Filesystem check

Fast system check

File system consistency check

Format system check

15. Which command safely unmounts a filesystem and checks if it's in use?

Umount /mnt/data

Umount -l /mnt/data

Umount -f /mnt/data

Unmount /mnt/data

16. What is the correct syntax to mount a filesystem at boot time?

Add entry to /etc/mount.conf

Add entry to /etc/fstab

Run mount -p /dev/sda1 /mnt

Add entry to /etc/mtab

17. Which command creates a new partition on a disk using the fdisk utility?

Fdisk /dev/sda then press 'n'

Mkpart /dev/sda

Partition create /dev/sda

Fdisk -c /dev/sda

18. What does LVM stand for in Linux storage management?

Linear Volume Manager

Logical Volume Manager

Large Virtual Memory

Local Volume Maintenance

19. Which filesystem is the default for most modern Linux distributions?

Ext3

Ext4

Btrfs

XFS

20. What is the primary purpose of the inode in a Linux filesystem?

Store file data blocks

Store file metadata and point to data blocks

Manage disk partitions

Control user permissions only