100-150 Question 197
Select 3A user reports that they are unable to access an internal web application hosted on a server. You have confirmed the server is operational and reachable from your own machine. Which of the following steps would you take to diagnose the issue effectively?
- A
Check if the user's computer has the correct IP configuration (e.g., IP address, subnet mask, gateway).
- B
Verify that the DNS server the user is using resolves the web application's hostname correctly.
- C
Inspect the server's firewall and confirm it allows connections from the user's IP address.
- D
Use a network cable tester to determine if the user's Ethernet cable is damaged.
- E
Check if the user can access other internal resources, such as shared drives or other internal websites.
Show answer and explanation
Correct answers: A, B, E
Explanation
Diagnosing connectivity issues requires systematically isolating potential causes. Checking the user's IP configuration verifies their network settings are correct. Verifying DNS resolution ensures hostname mapping is functional. Testing access to other internal resources helps identify whether the issue is limited to the web application or indicative of a broader problem. These steps help pinpoint the root cause effectively.
- A. Correct.
Correct. Incorrect IP configuration on the user's computer can prevent them from reaching the internal web application. Verifying this is a crucial troubleshooting step.
- B. Correct.
Correct. DNS resolution issues can prevent the user from accessing the application using its hostname. Ensuring the DNS server is resolving correctly is vital.
- C. Incorrect.
Incorrect. Since the server is reachable from your machine, its firewall is unlikely to be blocking connections. This step is unnecessary in this scenario.
- D. Incorrect.
Incorrect. While a damaged Ethernet cable could cause connectivity issues, this is not the most logical step given the scenario. The connectivity issue is isolated to a specific application, not the entire network.
- E. Correct.
Correct. Testing access to other internal resources helps determine if the issue is application-specific or network-wide.