100-150 Question 199
Select 2A user reports that they are unable to access a web application hosted on a server within your network. You attempt to ping the server's IP address from your local machine but receive no response. Which of the following steps should you take to diagnose the issue? (Choose two.)
- A
Check if the server's firewall is blocking incoming ICMP requests.
- B
Verify that the user's computer has the correct DNS settings configured.
- C
Run a traceroute to check for any network path issues between your machine and the server.
- D
Restart the server to ensure it is functioning properly.
Show answer and explanation
Correct answers: A, C
Explanation
When diagnosing connectivity issues, it is essential to isolate the cause systematically. Checking for firewalls blocking ping requests and using traceroute to identify network path issues are both effective troubleshooting steps for this scenario. Restarting the server and checking DNS settings are less relevant for this specific ping-related issue.
- A. Correct.
Checking the server's firewall is a valid diagnostic step because a firewall may block ICMP requests (used by ping), which would prevent a response to the test.
- B. Incorrect.
While DNS issues could cause problems with accessing a web application, they would not prevent a response to a ping test using the server's IP address.
- C. Correct.
Running a traceroute is an appropriate diagnostic step to identify any network path issues, such as a router or switch blocking or dropping packets.
- D. Incorrect.
Restarting the server without further investigation is not a recommended initial diagnostic step as it could disrupt other services and may not address the root cause.