Jawaharlal Nehru Technological University Hyderabad 2011-3rd Sem M.C.A Code No: MC306 R06 s- COMPUTER COMMUNICATIONS - Question Paper

1. a) discuss about protocol hierarchies in detail.
b) Compare OSI reference model with TCP/IP reference model.
2. a) discuss about fiber optics transmission media.
b) discuss the stop-and-wait protocol.
3. a) discuss the multiple access protocols.
b) Write about Bluetooth technology briefly.
4. a) discuss the Token Bucket algorithm.
b) Draw and discuss the IPV4 header.
5. a) discuss the TCP transmission policy.
b) Draw the TCP header.
6. a) discuss the HTTP protocol.
b) discuss about video compression.
7. a) discuss the DES algorithm.
b) Write about different operative modes of DES algorithm.
8. a) discuss about the secure sockets layer.
b) discuss about MIME in brief.
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Earning:   Approval pending.