VCP-VMC 2024 Question 196
Single answerA VMware Cloud Administrator is troubleshooting a connectivity issue between a Virtual Machine (VM) in a VMware Cloud environment and an external application. The VM is connected to a logical network in VMware Cloud on AWS. The administrator has verified that the VM has the correct IP configuration and can ping other VMs on the same logical network. However, the VM cannot communicate with the external application. Which step should the administrator take next to resolve the issue?
- A
Verify that the required firewall rules are configured in the VMware Cloud on AWS console to allow traffic to the external application.
- B
Check if the logical network is associated with an incorrect or missing Tier-0 Gateway in the VMware Cloud on AWS configuration.
- C
Ensure that the NSX Edge Cluster has sufficient resources for routing the traffic to the external application.
- D
Confirm that the external application is running and accessible from a non-VMware Cloud environment to rule out application-side issues.
Show answer and explanation
Correct answer: A
Explanation
In VMware Cloud on AWS, network traffic between VMs and external entities is controlled by firewall rules configured in the VMware Cloud Console. Even if the VM has the correct IP configuration and can communicate within the logical network, traffic to an external application may be blocked if firewall rules are not properly defined. Verifying and adjusting these rules is the most logical next step in troubleshooting.
- A. Correct.
Correct. Firewall rules in VMware Cloud on AWS control traffic flow. If the rules do not explicitly allow traffic between the VM and the external application, the connection will fail.
- B. Incorrect.
Incorrect. While a missing or misconfigured Tier-0 Gateway could cause connectivity issues, the problem is more likely related to firewall rules in this scenario since the VM can communicate within the logical network.
- C. Incorrect.
Incorrect. The NSX Edge Cluster's resource availability typically impacts performance or scalability rather than basic connectivity to an external application.
- D. Incorrect.
Incorrect. Verifying the external application's availability is a valid troubleshooting step, but the question focuses on the VMware Cloud configuration, and the issue is more likely related to network rules or routing.