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two hosts, A and B, are separated by 20,000 kilometers and are connected by a link of R=2 Mbps, and there are 4 routers between A and B. Suppose the propagation speed over the link is 2.5*108 meters/sec, average queueing time is 2ms,
processing 3ms on each router. Consider sending a file of 800,000 bits from Host A to Host B. Suppose the file is sent continuously as one large message. How much time for B to receive the whole file after A sent out the first bit?( A little bit explanations please, formulas etc)
What kind of network crimes may use P2P networks? Find the most challenging crimes that could be based on P2P networks and write a report on how to do forensic investigations on these crimes.
How could the articles or recommendations at the CFO site help your efforts? Are these subjects where we should be looking to for future investments?
Suppose the role of IT consultant to new nonprofit organization, Free Flu, which gives flu shots to elderly. Distinguish between any Web pages or Web servers you would use for this task.
Describe the differences between data, voice, and video signals in 200 to 300 words. Write a explanation comparing differences between PBX and VoIP.
Look for the information security body of knowledge(CBK). When you review list of 10 areas in CBK, is policy listed? why do you think this is so?
Write one-page proposal of how company can manage SNMP from corporate location. Include details on versions, basic operations, and MIBs. Describe the benefits of this kind of centralized monitoring.
Assume two hosts, A and B, are separated by 10,000 kilometers and are connected by direct link of R =1 Mbps. Assume propagation speed over link is 2.5?108 meters/sec .How long does it take to send file, suppose it is sent continuously?
Consider transferring a large file of L bytes from Host A to Host B. Assume a MSS of 1460 bytes. What is the maximum value of L such that the TCP sequence numbers are not exhausted?
A large environmental organization that provides services suchs as water quality monitoring and geological surveys to businesses and government agencies across the nation, needs help designing its corporate WAN
Write down types kinds of business applications would you deem significant in networked business office? What kinds of network servers and resources would be essential to run these business applications?
Can you run an ordinary TCP connection through the guard to pass it through the guard? Explain why/why not, and if not, what protocol can you use to move the data?
Assume Host A wishes to send large file to Host B. Path from Host A to Host B has three links, of rates R1=500kbps, R2=2Mbps, and R3=1Mbps. Suppose no other traffic in network, Determine the throughput for file transfer.
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