Which technology provides a secure communication channel for all traffic at Layer 2 of the OSI model?

Which technology provides a secure communication channel for all traffic at Layer 2 of the OSI model?
A . MACsec
B . IPsec
C . SSL
D . Cisco Trustsec

View Answer

Answer: A

Explanation:

MACsec, defined in 802.1AE, provides MAC-layer encryption over wired networks by using out-ofband methods for encryption keying. The MACsec Key Agreement (MKA) Protocol provides the