Doubts about "Operation System"

I’m following the tutorial on the website, but when I created the vmware part, here: https://prnt.sc/rfwmbv

I used this link: http://file.autovm.net/vmware/templates/centos_7_64.ova

However, I don’t know the default root password that it is generated from, and this is my doubt, what is the root password?

Default username and password:
root
123QWEqwe

And for windows:
administrator
123QWEqwe

Okay, it worked, thanks.

Well, then I should put this data in “Operation System”, configure the whole machine with a valid IP, update it all? What would this configuration look like now?
or do I not need to do this?