Which of the following IPv6 addresses appears to be a unique local unicast address? (Choose two)

(A) 1234:5:6:7::8
(B) FE80::1234:56FF:FF00:1234
(C) FDAD::2
(D) FF00::1
(E) FDBB::2
(F) FF80::1234

C and E are the correct answers.

Unique local IPv6 addresses have a similar function as IPv4 private addresses. They are not allocated by an address registry and are not meant to be routed outside their domain. Unique local IPv6 addresses begin with FD00::/8.

A unique local IPv6 address is constructed by appending a randomly-generated 40-bit hexadecimal string to the FD00::/8 prefix. The subnet field and interface ID are created in the same way as with global IPv6 addresses.

Unique local addresses begin with FD in the first two digits. So, the correct answers are:
1. FDAD::2
2. FDBB::2