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Harrison, Ruzzo and Ullman, in their paper "Protection in Operating Systems", have discussed the safety problem.
How do they define ‘safety'?
a) What is the difference between the terms ‘safety' and ‘security'?
b) What is the conclusion of the paper?
c) Does the conclusion derived in this paper contradict the BLP model and its claim to be secure? Justify.
Suppose computers on your home network are connected to a single hub (a), but now you need to expand the network.
It determines new tree topology when switch or cable link failures. Reserved route takes over when device or connection fails. To aggregate ....to gather together Which is better, 10x100Mbps or 1Gbps?
Now that you know more about ConnectSpree's network, you begin drawing a map of its devices and connections, starting with its internal LAN.
Assuming you use a straight-through (not a crossover) cable, what port on hub A will you use to connect it to hub B?
Describe why an application developer might choose to run over TCP rather than UDP. Suppose host A is sending host B a large file over a TCP connection. If the acknowledge number for a segment of this connection is y, then the acknowledge number for ..
Let N users participating in audio/video conference using IP multicasting. Each user is equipped with microphone, a camera, and speakers. How many distinct canonical names are required?
Define and explain the OSI model, TCP/IP protocol, File transfer protocol, or wireless workstation giving examples of its usage and explaining its' background and history
Mobile user A transmits a 1, while Mobile user B transmits a 0. Show sum of the products that results and your calculations.
Write a short description of what they are and include your assessment of whether this activity is something to worry about or not.
Consider the following method for congestion control in a error-free virtual circuit subnet.
Find out whether it's configured to transfer data at 10 Mbps rather than 100 Mbps, as it should be. How could you find this information and change it, if necessary?
Draw a simple graph to show conflict degree. Use channels as colors and show the algorithm step by step to color the graph. Explain what does thismean i.e. what have you constructed?
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