Which of these represents the Internet Protocol version 6 (IPv6) loopback address?

Which of these represents the Internet Protocol version 6 (IPv6) loopback address?
A . 127.0.0.1
B . 192.168.0.1
C . FEC0:A8C0::AA01
D . ::1

View Answer

Answer: D

Explanation:

The localhost (loopback) address, 0:0:0:0:0:0:0:1, and the IPv6 unspecified address, 0:0:0:0:0:0:0:0, are reduced to ::1 and ::, respectively.