The OSI Model

Question 1

The OSI Model

Answer 1

The OSI (Open Systems Interconnection)
model is a conceptual framework that standardizes the functions of a communication system into seven distinct layers. When you load a simple webpage over the internet, each layer plays a role in delivering the content to your device.
The OSI model can get really complex, so at the very least, just do your best to memorize the order and gain a very basic understanding of the layers.

Question 2

OSI Model and Interviewing

Answer 2

1. What is the OSI model and why is it important in networking?
2. Can you briefly describe the purpose of each layer in the OSl model?
3. How do the Transport Layer and Network Laver differ in their responsibilities?
4. What are some common protocols associated with the Application Layer, and what are their primary functions?
5. Can you explain how data encapsulation works in the context of the OS model?
6. What is the role of the Physical Layer in data transmission, and what are some examples of
   Physical Layer technologies?
7. How does the Data Link Layer ensure reliable and error-free communication between devices on a local network?
8. In the OSI model, which layer is responsible for routing data between devices on different networks, and what is an example of a related protocol?
9. Can you describe how the Session Layer manages connections between devices during communication?
10. Why is the Presentation Layer important for ensuring proper data formatting and compatibility between different systems?

Question 3

The OSI Model Order

Answer 3

7. Application
8. Presentation
9. Session
10. Transport
11. Network
12. Data Link
13. Physical