Practice Test 2 | Google Cloud Certified Professional Cloud Architect | Dumps | Mock Test
You can SSH into an instance from another instance in the same VPC by its internal IP address, but not its external IP address. What is the possible reason for this scenario?
A. The outgoing instance does not have correct permission granted to its service account.
B. The internal IP address is disabled.
C. The SSH firewall rule is restricted only to the internal VPC.
D. The receiving instance has an ephemeral address instead of a reserved address.
Correct Answer – C
The firewall rule to allow SSH is restricted to the internal VPC
Instances can have both Internal and External IP addresses. When connecting to another instance by its external address, you’re going out of your internal network to the external Internet and coming back to access the instance by its external address. If traffic is restricted to the local VPC, it will reject this attempt as it is coming from an external source.
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