100-140 Question 186
Select 3A user reports that they are unable to access the internet on their laptop. You are tasked with examining the end-device connectivity to the network. Which of the following actions should you perform to identify the issue?
- A
Check if the laptop is connected to the correct Wi-Fi network.
- B
Verify that the laptop has a valid IP address assigned.
- C
Restart the wireless router without checking the laptop's network settings.
- D
Use the 'ping' command to test connectivity to the default gateway.
- E
Ensure that the laptop's firewall is disabled.
Show answer and explanation
Correct answers: A, B, D
Explanation
To troubleshoot basic end-device connectivity issues, it is important to verify the device's network connection (e.g., correct Wi-Fi network), check for a valid IP address, and test connectivity using tools like the 'ping' command. Restarting the wireless router or disabling the firewall should only be considered if other steps indicate these actions are necessary.
- A. Correct.
Correct. Ensuring the laptop is connected to the correct Wi-Fi network is a fundamental step in troubleshooting basic network connectivity.
- B. Correct.
Correct. Verifying that the laptop has a valid IP address is crucial to ensure it can communicate with the network.
- C. Incorrect.
Incorrect. Restarting the wireless router without investigating the laptop's network settings may be unnecessary and does not directly address the root cause.
- D. Correct.
Correct. Using the 'ping' command to test connectivity to the default gateway helps determine if the device can communicate with the local network.
- E. Incorrect.
Incorrect. Disabling the firewall is not a recommended troubleshooting step unless there is evidence that it is causing the issue, which is not indicated here.