Distinguish between flow control and congestion control, Computer Networking

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Question:

(a) Distinguish between Flow Control and Congestion Control.

(b) Explain clearly how a URL is resolved by a computer.

(d) Compare and contrast POP and IMAP.

(e) With the aid of a diagram, describe the role of the User Agent (UA), the Mail Transfer Agent (MTA) and the SMTP server in the Simple Mail Transfer Protocol (SMTP).

(f) How does ATM provide Quality of Service?

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