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4.3. Troubleshooting Networks
š” First Principle: To troubleshoot a network, you must use a layered, logical process of deduction to determine if the issue is local to the device, on the LAN, or beyond the gateway to the internet.
Scenario: A user cannot connect to the internet. You need to determine the scope of the problem: is it just their computer, the entire office, or an issue with the ISP?
Network issues can be complex because they involve many interconnected systems.