Cloud+ Exam: Troubleshooting VM Accessibility from Another Network

Possible Problem with VM Accessibility from Another Network

Question

A cloud implementation engineer successfully created a new VM.

However, the engineer notices the new VM is not accessible from another network.

A ping test works from another VM on the same subnet.

Which of the following is the MOST likely problem?

Answers

Explanations

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A. B. C. D.

A.

The problem here is that the new VM created by the cloud implementation engineer is not accessible from another network. The fact that a ping test works from another VM on the same subnet indicates that there might not be any issues with the network interface card (NIC) or network settings of the new VM.

Therefore, the problem could be related to the network infrastructure or configuration, and the MOST likely cause is an incorrect gateway configuration. A gateway is the IP address of a device that connects different networks and enables communication between them. In this case, the new VM might not be able to communicate with other networks because it is not configured with the correct gateway IP address.

The other answer choices could also be possible causes of the problem, but they are less likely than an incorrect gateway configuration. Here's why:

  • Incorrect subnet: If the subnet was incorrect, the new VM would not be able to communicate with any other devices on the same subnet, including the other VM that was used to test the ping. Therefore, this answer choice is less likely than an incorrect gateway configuration.

  • Incorrect host IP address: This answer choice could be a possible cause of the problem if the IP address of the new VM was incorrect or conflicting with another device on the network. However, the fact that the ping test works from another VM on the same subnet indicates that the IP address of the new VM is likely correct. Therefore, this answer choice is less likely than an incorrect gateway configuration.

  • Incorrect VLAN: VLANs are used to segment a network into different virtual LANs for security or performance reasons. If the new VM was not configured with the correct VLAN, it would not be able to communicate with devices on other VLANs. However, the question does not provide any information that suggests that VLANs are being used in this network. Therefore, this answer choice is less likely than an incorrect gateway configuration.