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

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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?

14. Active mode vs. passive mode in FTP? (Describerom whose perspective is the mode and how the dataconnection is established.)

15. Control and data connections in FTP? (Explain whywe need two connections.)