A company previously migrated its data warehouse solution to AWS. The company also has an AWS Direct Connect connection. Corporate office users query the data warehouse using a visualization tool. The average size of a query returned by the data warehouse is 50 MB and each webpage sent by the visualization tool is approximately 500 KB. Result sets returned by the data warehouse are not cached. Which solution provides the LOWEST data transfer egress cost for the company?

Hosting the visualization tool in the same AWS Region as the data warehouse minimizes egress costs because data transfer between services within the same AWS Region is free. Accessing the visualization tool over a Direct Connect connection at a location in the same Region ensures that the larger data warehouse query results (50 MB) do not incur internet egress charges when traveling to the corporate office, as Direct Connect egress is significantly cheaper than internet egress. Hosting the tool on-premises and querying over the internet would incur high internet egress costs for the 50 MB query results. Hosting the tool in AWS and accessing it over the internet would incur internet egress costs for the 500 KB webpages, plus the 50 MB query results if the tool is just a proxy. Hosting the tool on-premises and querying over Direct Connect would still incur Direct Connect egress costs for the 50 MB query results, which, while cheaper than internet egress, is not free like intra-Region transfer.