Yes, country code top-level domains are assigned based on ISO-3166 country codes, which are protected globally. (Except that the United Kingdom uses .uk instead of its ISO-3166 code of .gb; however, the ISO has agreed not to assign UK as an ISO-3166 code.)
There are different kinds of classification. Starting from Toplevel-Domain-Classification to models based on the content or function. See http://dictionary.bnet.com/definition/web+site+classification.html for more.
it is amazon
unique addresses that are public domain addresses
For all intents and purposes, a domain name is not contained within a country. The Internet is international, and all DNS servers are designed to relay the correct information globally through a relay of trusted networks.Furthermore, the correct operation of the Internet depends on a domain name having just one DNS file (this file may contain multiple IP addresses and aliases, however). Attempts to subvert the global DNS directory is known as DNS poisoning, and is carefully guarded against by technical measures built into bind and Active Directory. These include trusted security keys and known DNS route maps. In this sense, there is a global consensus towards protecting each domain name's IP addresses and aliases, and the software and protocols of DNS are the technical guardians of a domain name. Please note that while your domain name is protected globally, pockets of the Internet, notably corporate networks, may choose to filter domain names; many do so as a means of reducing the abuse of corpotate networks for non-business purposes.
The original work painted by DaVinci has been in the Public Domain for centuries. A pure photograph of it with nothing more will probably also be considered in the public domain, but that depends on the country if there is an issue over it. A new painting of it where someone did their own interpretation would be protected.
No; it will be protected through 2034.
It varies from country to country. For life+50 countries such as Canada, it is in the public domain. For life+70 countries, it may be protected, but it's frustratingly difficult to determine.In the US, for example, it may be protected in Alaska, Arizona, California, Hawaii, Idaho, Montana, Nevada, Oregon, Washington, Guam, and the Northern Mariana Islands, but in the public domain everywhere else.Later translations, such as the Glocken Verlag English versions from the 1950s, would be protected. Certain performances and recordings are protected as well.
Works no longer protected by copyright are said to be in the public domain.
There are roughly 280 domain suffixes, including the ones that are saved for special use (Which are the ones normal webmasters can not register with).
No; recordings by SICSbeats are protected by copyright.
Public domain software
No; it will be protected through 2024.