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A proxy server is used for which of the following?

  • A.To provide security against unauthorized users
  • B.To process client requests for Web pages
  • C.To process client requests for database access
  • D.To provide TCP/IP

Answer: A

Correct answer: To provide security against unauthorized users

A proxy sits between the internal network and the outside, so every request passes through it and can be examined, filtered or refused. It hides the internal addresses and gives one place at which policy is applied - caching and performance are useful side effects rather than the purpose.

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