Isaiec 62443 Cybersecurity Fundamentals Specialist · Free Practice Question Easy
Question 10
Which one is the missing layer in the Open Systems Interconnection (OSI) model shown below?
- A Session
- B Transport
- C Control
- D User
Reveal correct answer
Correct answer: A
Explanation
As you can see in the figure, the missing layer in the OSI model is the Session Layer.Session layer is responsible for managing and controlling the dialogues (sessions) between two computers. It establishes, maintains, and terminates connections between applications.Discussion
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