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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
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
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