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a) A host is sending a HTTP request to a HTTP server. In the table below, propose a correct set of source and destination port numbers for segments sent from host to server and from server to host resulting from this request.
Segment Source port number Destination port number
from host to server
from server to host
b) List all application layer and transport layer protocols that will be used by a host to download a web page from a server. Assume that the IP address of the server is not known to the host.
Note: the number of cells in the table does not have to match the number of protocols you will list.
Application protocols Transport protocols
Question : a) Give three examples of vulnerable services which are among the overwhelming majority of successful attacks. b) Name the five outside sources which can be the
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Question 3:4 By experimentation, work out the lowest SNR, under which 4 users can si- multaneously communicate, without error, via this system. For SNR, simply report the largest v
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Consider a simple wireless data link using channel bandwidth of 40 kHz. The transmit power level is 20 dBm, the link attenuation is 40 dB and the SNRdB at the receiver is 20 dB.
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Briefly write functionalities of different OSI layers? The OSI Reference Model includes seven layers. Basic functionality of each of them is as follows: 1. Physical Layer:
What is a difference between a domain and workgroup?
TPC and UDP are 2 layer of Transport protocols.
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