Amazon
SOA-C02 · Question #251
A SysOps administrator migrates NAT instances to NAT gateways. After the migration, an application that is hosted on Amazon EC2 instances in a private subnet cannot access the internet. Which of the f
The correct answer is A. The application is using a protocol that the NAT gateway does not support. D. The NAT gateway is not in the Available state.. https://docs.aws.amazon.com/vpc/latest/userguide/nat-gateway-troubleshooting.html#nat- gateway-troubleshooting-no-internet-connection
Submitted by satoshi_tk· Mar 30, 2026Networking and Content Delivery
Question
A SysOps administrator migrates NAT instances to NAT gateways. After the migration, an application that is hosted on Amazon EC2 instances in a private subnet cannot access the internet. Which of the following are possible reasons for this problem? (Choose two.)
Options
- AThe application is using a protocol that the NAT gateway does not support.
- BThe NAT gateway is not in a security group.
- CThe NAT gateway is in an unsupported Availability Zone.
- DThe NAT gateway is not in the Available state.
- EThe port forwarding settings do not allow access to internal services from the internet.
How the community answered
(32 responses)- A84% (27)
- B6% (2)
- C3% (1)
- E6% (2)
Explanation
https://docs.aws.amazon.com/vpc/latest/userguide/nat-gateway-troubleshooting.html#nat- gateway-troubleshooting-no-internet-connection
Topics
#NAT gateway#protocol support#VPC connectivity#private subnet
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