Is must set Wildcard DNS for multi domains plugins?

Hi There,

Wildcard DNS allows all subdomains to share the same set of files, which may be necessary for a multisite web application or if you want the subdomains to show the same content as the main site.

An example of Wildcard DNS would be if a site visitor tries to use a subdomain such as example.domain.com. It would work the same as if the visitor had gone to the designated domain, http://domain.com/

But if I want to end uesr have own subdomains example.domain.com and let the visitor go to same webpage example.domain.com not go to http://domain.com/

I still need set Wildcard DNS for addon domains not?

All other domains in the mail sites (multi domains plugins), I want to different domains go to the different webpage. How I set up?

Is domain mapping plugins?

Thanks!