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How does a web cache (proxy server) help satisfy client requests without involving the origin server?
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What role does a web cache play in the client-server communication process?
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Why is web caching important for reducing traffic on an institution’s access link?
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Why might it be more cost-effective to implement a proxy server instead of increasing the bandwidth of a network link?
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What does the term "hit rate" refer to in the context of web caching?
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What is the Domain Name System (DNS) and where does it operate within the Internet infrastructure?
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Why is DNS considered essential for the proper functioning of the Internet?
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What were the drawbacks of the early centralized approach to DNS, where a single server maintained all address translations?
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