domain without host or without parking

[eddielkk]

well, in this case, the domain suppose to remain in the main domain registrar server where their defaults settings path to. You can use whois to see where the domain located before you do any DNS settings.

Dude, then what will show up in our web browser if we type the domain name?
Moreover, if what you said is true, then I wonder why people parking their domains by spending domain. Why they don't let it to be the host server itself?

What it will shows on your browser depends on the domain registrar defaults settings, it can be totally no page found, or a simple rediection pages, saying that those domain is not ready or something.