Sarah bought new sneakers from her favorite store online. What layer of the OSI framework synchronizes the communication between Sarah and the business so that the transaction can happen smoothly?
1. Physical
2. Presentation
3. Data link
4. Session
4. Session
The layer of the OSI framework that synchronizes the communication between Sarah and the business so that the transaction can happen smoothly is the session layer, which is option number 4.
The layer of the OSI framework that synchronizes the communication between Sarah and the business so that the transaction can happen smoothly is the Session layer. The Session layer is responsible for establishing, managing, and terminating sessions between applications. It provides services like session establishment, maintenance, and termination, as well as managing synchronization between multiple applications.
To determine this answer, you can remember the purpose and function of each layer in the OSI framework.
1. The Physical layer is responsible for the actual physical transmission of bits over a communication channel, such as cables or wireless signals. It deals with hardware-related aspects but does not help in synchronizing the communication between Sarah and the business.
2. The Presentation layer is responsible for data conversion, compression, and encryption. It ensures that data is properly formatted and presented to the application layer. It does not directly deal with session synchronization.
3. The Data Link layer deals with error detection and correction, as well as organizing and synchronizing data into frames for transmission. While it handles some synchronization-related tasks, such as flow control and error detection, it does not specifically address session establishment and management between applications.
4. The Session layer, on the other hand, focuses on setting up, coordinating, and terminating sessions or connections between applications. It provides synchronization points in the data flow and handles session-related tasks like session establishment, maintenance, and termination.
Therefore, the correct answer is 4. Session layer.