December 1998
NI222: NETWORKS AND THE INTERNET

QUESTION 3

Total Marks: 20 Marks

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SUGGESTED SOLUTIONS
for Question 3

 
(a) Explain the structure of the FTP application. Include an explanation of the way it uses two separate connections. You may find it helpful to draw a diagram.

 

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(b) What is anonymous FTP?

 

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(c) Explain the differences between connection-oriented and connectionless transport protocols.

 

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(d) FTP uses the TCP service of the transport layer. Is this a connection-oriented, or connectionless protocol ? What features of FTP make this a sensible choice ?

Give an example of an application which might use the other sort of transport protocol.

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