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Question
Why use Request Dispatcher to forward a request to another resource, instead of using a sendRedirect?
Options:
A .  Redirects are no longer supported in the current servlet API
B .  Redirects are not a cross-platform portable mechanism
C .  The RequestDispatcher does not use the reflection API
D .  The RequestDispatcher does not require a round trip to the client, and thus is more efficient and allows the server to maintain request state
Answer: Option D





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