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9. What HTTP messages are exchanged in download-ing,  lling, and uploading a Web orm?

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10. What does connection persistence mean in HTTP 1.1?

11. Forward-caching vs. reverse-caching? (Compare theirlocation and cache content.)

12. How does an HTTP proxy intercept HTTP requestsdestined or HTTP servers?

13. What does an HTTP caching proxy do i it has a cachemiss? How many TCP connections does it establishor a speci c client?

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