Isaiec 62443 Cybersecurity Fundamentals Specialist · Free Practice Question Easy
Question 47
What is a key responsibility of the session layer in the OSI model?
- A Encrypting data for secure transmission
- B Routing messages through a network
- C Graceful closing of sessions
- D Error checking and framing
Reveal correct answer
Correct answer: C
Explanation
The session layer (Layer 5 of the OSI model) is responsible for managing and controlling communication sessions between applications, including the graceful closing of sessions. This involves establishing, maintaining, and terminating connections to ensure orderly data exchange, such as resuming interrupted sessions or closing them without data loss. Error checking and framing occur at the data link layer, encryption is typically handled by the presentation or application layers, and routing is a network layer function, making session management the key responsibility.Discussion
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