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AWS Certified Solutions Architect - Professional · AWS
Select one answer.
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There are many misleading explanations here. You cannot attath ElasticIP to Internet Gateway which use instance public ip for NAT. - https://docs.aws.amazon.com/vpc/latest/userguide/vpc-igw-internet-access.html#ip-addresses-and-nat But NAT can be used with Elastic IP for fixed outbound ip. That's difference. - https://docs.aws.amazon.com/ko_kr/vpc/latest/userguide/nat-gateway-scenarios.html#private-nat-allowed-range
A. Deploy a NAT gateway. Associate an Elastic IP address with the NAT gateway. Configure the VPC to use the NAT gateway.
A is correct, NAT not only provides the internet outbound , but also provides single public IP address, So Selected Answer: A