Palo Alto Networks (PANW) Certified Cybersecurity Entry-level Technician (PCCET) Practice Exam

Which option shows the ISO layers in the correct order (bottom layer to top)?

1. Physical, Transport, Network, Session, Data link, Presentation, Application

2. Physical, Data link, Network, Application, Presentation, Transport, Session

3. Physical, Data link, Transport, Session, Presentation, Network, Application

4. Physical, Data link, Network, Transport, Session, Presentation, Application

The correct answer is: Physical, Data link, Network, Transport, Session, Presentation, Application

The correct option presents the ISO (International Organization for Standardization) layers in the accurate sequence from the bottom layer to the top. The model consists of seven layers, which are arranged in the following order: 1. **Physical**: This is the lowest layer and deals with the physical connection between devices, including the hardware aspects of the network. 2. **Data Link**: This layer is responsible for node-to-node data transfer and error correction between adjacent nodes. 3. **Network**: This layer handles the routing of data packets across the network, enabling devices to communicate with one another even if they are not on the same local network. 4. **Transport**: The transport layer provides end-to-end communication services for applications, establishing connections and ensuring that messages are delivered accurately and in sequence. 5. **Session**: This layer manages sessions between applications, maintaining connections and controlling the dialogue between the applications. 6. **Presentation**: This layer is responsible for translating, encrypting, and compressing data for the application layer. It ensures that data is in a usable format for the receiving application. 7. **Application**: The top layer where user applications and network services reside, providing functionalities directly to end-user applications. This order is