Which of the following statements are true about an IPv6 network?
Each correct answer represents a complete solution. Choose all that apply.

A.
It uses 128-bit addresses.

B.
It uses longer subnet masks than those used in IPv4.

C.
It increases the number of available IP addresses.

D.
For interoperability, IPv4 addresses use the last 32 bits of IPv6 addresses.

E.
It provides improved authentication and security.