100-150 Question 135
Select 4You are troubleshooting a network connectivity issue for a user on a Windows laptop. The user cannot access the internet, and you suspect there may be an issue with their IP configuration. Which of the following steps would you take to verify and resolve the issue?
- A
Use the 'ipconfig' command in Command Prompt to check the network adapter's IP configuration.
- B
Run the 'ping' command to test connectivity to a known external website.
- C
Navigate to the Windows Control Panel to manually disable and re-enable the network adapter.
- D
Use the 'nslookup' command to verify DNS resolution for a domain name.
- E
Reinstall the network adapter drivers without checking the current IP configuration.
Show answer and explanation
Correct answers: A, B, C, D
Explanation
Troubleshooting network connectivity on a Windows system requires a systematic approach. Using tools like 'ipconfig' to check the IP configuration, 'ping' to test connectivity, and 'nslookup' to verify DNS resolution are standard practices. Disabling and re-enabling the network adapter can help resolve temporary issues. Reinstalling drivers should only be done if there is evidence of a hardware or driver-related problem.
- A. Correct.
Using the 'ipconfig' command allows you to check the current IP configuration, including IP address, subnet mask, and default gateway, which is critical for diagnosing connectivity issues.
- B. Correct.
The 'ping' command is a basic tool to test network connectivity to a specific IP address or domain, helping identify if the issue is with local or external connections.
- C. Correct.
Disabling and re-enabling the network adapter can resolve temporary adapter issues by resetting the connection.
- D. Correct.
The 'nslookup' command helps verify if DNS resolution is functioning correctly, which is necessary for accessing websites using domain names.
- E. Incorrect.
Reinstalling the network adapter drivers without checking the current IP configuration is unnecessary and time-consuming unless you have confirmed a driver-related issue.