Explanation:
Deploying a single NAT gateway in one Availability Zone and routing traffic from all subnets through it is more cost-effective than deploying a NAT gateway in each subnet or using multiple NAT instances, as it reduces the number of gateways needed while still providing necessary internet access.
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A startup is deploying a web application that requires frequent access to the internet but has a limited budget. What is the most cost-effective way to configure NAT for their single VPC?
A
Deploy a NAT gateway in each subnet.
B
Deploy a single NAT gateway in one Availability Zone and route traffic from all subnets.
C
Use a NAT instance instead of a NAT gateway.
D
Avoid using any NAT service to reduce costs.