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Windows® Internals, Sixth Edition, Part 1 by David A. Solomon Mark E. Russinovich and Alex Ionescu

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BranchCache

BranchCache is a generalized content-caching mechanism designed to reduce network bandwidth, especially over WANs. The name BranchCache comes from the concept of branch offices within a company connecting to the company’s centralized servers via WAN links, which are typically hundreds of times slower than LAN links and caching content used by computers in the branch office within that branch office. Moving the content cache to the branch office drastically reduces the time to access the content because the data does not have to traverse the WAN.

Unlike Offline Files, which caches only files, BranchCache caches content, which is anything that can be identified by a URL, such as files, web pages, an HTTP video stream, or even a blob accessed ...

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