Your company runs an online gaming service. Users connect to your game server to play the game. The game makes extensive use of geographic data; to load the data, the Game server loads ('queries') the data from the Geo Server. The Geo Server stores its data on the SAN. The Game server is very fast, but querying the Geo Server is quite slow. However, the Game server often uses the same geographic data repeatedly, so many of the queries to the Geo server are identical.

Explain how caching can be used in this situation to reduce the time it takes to access and analyze (some) data sets. In your answer, be specific about what structures/devices/setup/etc. might be needed and where, and how the system operates..