Which statement about MACsec is true?
A. MACsec provides Layer 2 hop-by-hop encryption, based on the 802.1AE standard.
B. Cisco AnyConnect Release 3.0 supports both roles: supplicant and authenticator.
C. 802.1X protection includes the CMD field, which is used to carry the security group tag value.
D. MACsec does not work between any MACsec-capable supplicant and authenticator.
