Talk:Web Science/Part1: Foundations of the web/Domain Name System/Terminology/quiz

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I have an issue with question 4.

I understood fqdn as one that resolves to a host, but this answer is not an option. (even for the given ones I do not see the difference between a path from root to node vs node to root as these are isomorphic) --SteffenStaab (discusscontribs) 08:38, 27 October 2013 (UTC)

The answer to question 2 implies that the root has a parent.[edit]

The answer to question #2 says that every domain is a subdomain of its parent. What is the root's parent? Is the root a subdomain? --2606:6000:CD00:A000:84AC:566A:DFC5:7F36 (discuss) 13:42, 2 May 2016 (UTC)