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Cloud · Flashcard

Instances pull terabytes per month from S3 through a NAT gateway. What removes most of that charge?

Why this is the answer

NAT gateways bill per hour and per gigabyte processed, so routing S3 traffic through one is paying to reach a service that is already inside AWS; a gateway endpoint sends it via the VPC route table at no endpoint charge. NAT gateways have no size tiers, Transfer Acceleration is a paid upload optimisation, and moving the bucket to another Region introduces cross-Region transfer charges instead.

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