2V0-41.24 Question 449
Select 3An administrator is deploying NSX in their environment and notices that the NSX Manager is not able to communicate with the vCenter Server. They verify that the NSX Manager has a valid IP address, subnet mask, and default gateway. However, the connection test to the vCenter Server fails. Which of the following troubleshooting steps should the administrator perform to resolve the issue?
- A
Verify that the vCenter Server credentials entered in the NSX Manager are correct.
- B
Check if the firewall allows communication between the NSX Manager and the vCenter Server on port 443.
- C
Ensure that the NSX Manager and vCenter Server are in the same datacenter object in vSphere.
- D
Test DNS resolution to ensure that the NSX Manager can resolve the hostname of the vCenter Server.
- E
Reinstall the NSX Manager appliance with a different IP address.
Show answer and explanation
Correct answers: A, B, D
Explanation
To troubleshoot NSX Manager's inability to communicate with vCenter Server, the administrator should verify the vCenter Server credentials, ensure that port 443 is not blocked by a firewall, and confirm that DNS resolution works correctly for the vCenter Server's hostname. These steps address the most common causes of communication issues. Reinstalling the NSX Manager or checking for datacenter placement is not relevant in this scenario.
- A. Correct.
This is correct. Incorrect vCenter Server credentials in NSX Manager can prevent successful communication. Verifying the credentials ensures proper authentication.
- B. Correct.
This is correct. NSX Manager communicates with vCenter Server over port 443. A firewall blocking this port could cause communication failures.
- C. Incorrect.
This is incorrect. The NSX Manager and vCenter Server do not need to be in the same datacenter object. This step is not relevant for troubleshooting this issue.
- D. Correct.
This is correct. If the NSX Manager cannot resolve the vCenter Server's hostname, communication will fail. Testing and correcting DNS resolution is a necessary step.
- E. Incorrect.
This is incorrect. Reinstalling the NSX Manager with a different IP address is unnecessary unless there is a proven IP conflict or misconfiguration, which is not indicated here.