A user is unable to connect to the Internet. The network administrator decides to use the top-down troubleshooting approach. Which action should the administrator perform first?
- Run the tracert command to identify the faulty device.
- Check the patch cable connection from the PC to the wall.
- Enter an IP address in the address bar of the web browser to determine if DNS has failed.
- Run the ipconfig command to verify the IP address, subnet mask, and gateway on the PC.
Explanation: The top-down troubleshooting method starts with the applications and moves down through the layers of the OSI model until the cause of the problem is identified. Using a web brwoser to test DNS resolution is a troubleshooting step at the application layer.
Exam with this question: Module 8.6.3 Troubleshoot Common Network Problems Quiz
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