Question

True or False: Usernames are unique for every domain, meaning no two people can have the same username on the same domain at once.

Answer 1

So following your logic and common sense true.

Answer 2

False. Usernames can be the same across different domains, but they need to be unique within the same domain. For example, two people can have the same username on different email platforms (e.g., [email protected] and [email protected]), but within a specific email platform, usernames need to be unique (e.g., [email protected] cannot be used by two different individuals simultaneously on the Gmail platform).

Answer 3

Yes, following the logic and principles of most systems, it is true that usernames are typically unique within a specific domain or platform.