CISA Certified Information Systems Auditor – Question2459

Using the OSI reference model, what layer(s) is/are used to encrypt data?

A. transport layer
B. Session layer
C. Session and transport layers
D. Data link layer

Correct Answer: C

Explanation:

Explanation:
User applications often encrypt and encapsulate data using protocols within the OSI session layer or farther down in the transport layer.