Answer to Question #262484 in Computer Networks for Xryzier

Question

Questions:

1.What is the importance of knowing the OSI layers?

2.Cite situation in which you can apply the knowledge of the different OSI layers.

Answer 1

The importance of knowing the OSI reference model is to enable a user understand the relationship between the different layers enabling networking communication. The protocols employed at each layer enables us to understand how different devices communicate with each other despite being from different vendors without friction.

One situation where I can apply OSI knowledge is when am troubleshooting for network connectivity issues. e.g. if a user has a problem accessing the web I can ping the website at hand. if the ping command replies doesn't lose packets then the problem might be at layer2 and not layer 3. Otherwise if packets are lost then I can run tracert to see where along the route is the problem.