A city’s open-data portal serves popular CSV and GeoJSON files from an S3 origin to thousands of citizens. Origin egress cost is rising. Which design improves performance and reduces transfer cost?
Select an answer to reveal the explanation.
Short Explanation
Popular open-data files should hitch a ride at the edge—CloudFront caches the hits so S3 isn’t paying taxi fare on every download. Turning off cache or shipping the whole bucket to every laptop is the opposite of thrifty.
Full Explanation
CloudFront edge caching reduces repeated origin bytes out of S3 while improving latency for widely consumed open data. Cross-Region replication hops, no-cache policies, and wholesale client sync patterns increase transfer and operational cost without addressing hot-object read patterns.