Option 1: HTTP Caching with a Forward Proxy Option 2: CDN using DNS Option 3: CDN using any cast Option 4: CDN based on rewriting HTML URLs   You have been asked to help reduce the costs for networking at an NGO The delivery of online courses has become a tremendous success , but this has led to a significant increase in network costs for the University.   You must select one of the options above to minimize load on the servers. Compare the operation of each option and justify a selection that provides the nest granularity of control over load to the content-servers and a selection that will serve each customer from the closest CDN server

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A: answer is

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