Publicly Routable IPv6 Addresses

D

The type of IPv6 address that is publicly routable in the same way as IPv4 public addresses is the global unicast address, option D.

IPv6 global unicast addresses are the equivalent of IPv4 public addresses, and they are globally unique addresses that can be used to communicate across the Internet. These addresses are used to identify individual devices on a network and allow them to communicate with other devices on the same network, as well as with devices on other networks across the Internet.

IPv6 global unicast addresses are composed of a 64-bit network prefix and a 64-bit interface identifier, which is typically based on the device's MAC address. This provides a total address space of 2^64 unique addresses, which is significantly larger than the 32-bit address space of IPv4.

Multicast addresses, option A, are used to send traffic to multiple devices simultaneously, whereas unique local addresses, option B, are used for local communication within a specific network or site. Link-local addresses, option C, are used for communication between devices on the same physical network segment and are not routable outside of that segment.

In summary, global unicast addresses are the IPv6 equivalent of IPv4 public addresses and are publicly routable addresses that allow devices to communicate across the Internet.