Which three are characteristics of IPv6? (Choose three.) Select 3 response(s).
A. An IPv6 address is 128 bits long.
B. An IPv6 header is 20 bits long.
C. An IPv6 header contains the next header field.
D. An IPv6 header contains the protocol field.
E. IPv6 routers send RA messages.
F. An IPv6 header contains the header checksum field.
https://www.cisco.com/en/US/technologies/tk648/tk872/technologies_white_paper0900aecd8054d37d.html
Unlike IPV4, IPV6 header not have a chacksum field, the application is verify checksum in IPV6.
The corretc is A C E
RA means routing advertisement
Routers sends this kind of messages