FeC0::9C5A is a valid Site-Local IPv6 address.

• A. True
• B. False
• C. Not a valid address
• D. It is an IPv4 address

Answer: (A)

Site-local IPv6 addresses use the FEC0::/10 prefix. The address FeC0::9C5A begins with FEC0, placing it in that site-local range, and its shorthand with a double colon is a valid IPv6 representation where the :: hides one or more zero blocks. So it is a valid Site-Local IPv6 address. Note that site-local addresses have been deprecated in favor of Unique Local Addresses (ULA) with the FC00::/7 prefix in modern networks, but that doesn’t affect the validity of this address as a site-local address. Also, this is not an IPv4 address.