Multiple choice

Which layer of OSI determines the interface of the system with the user?

  1. Network

  2. Application

  3. Data-link

  4. Session
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B Correct answer
Explanation

The Application layer (Layer 7) determines the interface of the system with the user. It provides network services directly to user applications and is the closest layer to the end user. Network layer handles routing, Data-link layer handles node-to-node communication, and Session layer manages session establishment and termination.

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