Lite now taking 3 minutes to boot

[arky217]

Well, I found the problem of the long boot time.
When I deleted the partition of another os on the drive,
I also deleted the swap partition which was 12Gb
because I never use more than 2 or 3 Gb of the 12
Gb of ram that I have.

I figured that with 12Gb of ram, the computer would never
use the swap partition.

So, I had to edit /etc/fstab and remove the reference to
that swap partition that I deleted so that the boot up
would not be trying to find a partition that no longer exists.

That changed the boot time from 3 minutes to 20 seconds.

But that raises a question:
If the computer ever did have to use swap, would it just use
a swap file ?
I've read that with Ubuntu 18.04 and its forks, a swap file is
automatically created upon installation.

When installing Lite from scratch, is a swap file created ?

I searched for a file called swapfile and
there is one. Does that mean that if the computer were to need
to use swap, would it automatically use that swap file, or is there
something that needs to be done to activate that swap file ?