Question: Add a 756M swap space and make sure it remains persistent after reboot.

Solution:

lsblk 

fdisk /dev/nvme0n1

lsblk 

mkswap /dev/nvme0n1p4

vim /etc/fstab 
    /dev/nvme0n1p4	swap	swap	defaults	0 0
    
mount -a

# Check existing swap
free -m

swapon -a

# After swapon we should now see extended swap
free -m

# Reboot to verify
reboot
