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Cisco Networking Simplified, Second Edition by Paul Della Maggiora, Neil Anderson, Jim Doherty

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Chapter . Caching

Moving Content Close to the User

Since the 1990s, the World Wide Web has taken off as fast as air conditioning. The Internet boom has created challenges for network engineers, including congestion, inconsistent quality and reliability, and cost-efficient scalability.

Examples of these problems include the following:

  • Not being able to access a news website during a huge news event because the web servers are unable to handle the enormous number of simultaneous users

  • Trying to view web pages located in another country

  • A company with international presence trying to localize its web pages for each country

Network caching provides a means to localize network content closer to the requester. Caching addresses the preceding problems by accelerating ...

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