Why disk management prevents outages in Linux CLI - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to list all disk partitions on a Linux system.

Linux CLI

lsblk [1]

Drag options to blanks, or click blank then click option'

A-l

B-f

C-m

D-a

Attempts:

3 left

💡 Hint

Common Mistakes

Using options that show tree format instead of list.

Using options that filter output too much.

The lsblk -l command lists all block devices in a list format, showing partitions clearly.

2fill in blank

medium

Complete the command to check disk usage of the root directory.

Linux CLI

df [1] /

Drag options to blanks, or click blank then click option'

A-i

B-a

C-T

D-h

Attempts:

3 left

💡 Hint

Common Mistakes

Using -a which shows all filesystems, not just root.

Using -T which shows filesystem type instead of size.

The df -h / command shows disk usage of the root directory in a human-readable format.

3fill in blank

hard

Fix the error in the command to create a new partition on /dev/sdb using fdisk.

Linux CLI

echo -e 'n\np\n[1]\n\n\nw' | fdisk /dev/sdb

Drag options to blanks, or click blank then click option'

Ap

Bd

C1

Dq

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'p' which prints the partition table instead of creating a new partition.

Using 'd' which deletes a partition.

The n command creates a new partition, and 1 selects partition number 1.

4fill in blank

hard

Fill both blanks to create a mount point and mount the partition /dev/sdb1 to it.

Linux CLI

mkdir [1]
mount [2] /mnt/data

Drag options to blanks, or click blank then click option'

A/mnt/data

B/dev/sdb1

C/mnt/backup

D/dev/sda1

Attempts:

3 left

💡 Hint

Common Mistakes

Mounting the wrong device or to a directory that does not exist.

Creating a directory but mounting a different path.

You create the directory /mnt/data and mount the device /dev/sdb1 there.

5fill in blank

hard

Fill all three blanks to add a new entry to /etc/fstab for automatic mounting of /dev/sdb1 to /mnt/data with ext4 filesystem and default options.

Linux CLI

echo '[1] [2] [3] defaults 0 2' | sudo tee -a /etc/fstab

Drag options to blanks, or click blank then click option'

A/dev/sdb1

B/mnt/data

Cext4

D/mnt/backup

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong device or mount point paths.

Using incorrect filesystem type.

The fstab entry format is: device, mount point, filesystem type, options, dump, pass.

Here, device is /dev/sdb1, mount point is /mnt/data, and filesystem type is ext4.