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which layer of the OSI model?

Secure Electronic Transaction (SET) and Secure HTTP (S-HTTP) operate at which layer of the OSI model?

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A.
Application Layer.

B.
Transport Layer.

C.
Session Layer.

D.
Network Layer.

Explanation:
Both SET and S-HTTP provides application layer security.
Incorrect Answers:
B: SET and S-HTTP work at the application layer, not at the transportation layer.
C: SET and S-HTTP work at the session layer, not at the transportation layer.
D: SET and S-HTTP work at the network layer, not at the transportation layer.References:
Stewart, James M., Ed Tittel, and Mike Chapple, CISSP: Certified Information Systems Security Professional
Study Guide, 5th Edition, Sybex, Indianapolis, 2011, p. 856


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