Question

You are informed that all the users within the network are unable to access the Internet. You decide to start troubleshooting from the Physical layer of the OSI model. Which of the following approaches would you use to troubleshoot this problem?
Random layer approach

Divide and conquer approach

Bottom up approach

Top down approach

Answer 1

Answer: Bottom up approach

Explanation:

We should start from the bottom i.e.starting from the physical layer by inspecting the lan, switches, router and also as we move up the level we also need to check the software application and the various routing protocols at each successive levels.

Hence, we use bottom up approach.