The first part is already outdated. A lot depends on the browser. Chrome will look up stuff as you type it, and by the time you press <enter>, the DNS lookup will likely have happened already. And, likely, the actual request to the page.
It's probably even more complicated than that, I believe "google.com" is a very special case in Chrome.
It's probably even more complicated than that, I believe "google.com" is a very special case in Chrome.