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Bob believes that he has come up with a nifty hash function. He assigns a numeric value VChar to each letter in the alphabet equal to the letter's position in the alphabet, i.e., VA = 1, VB = 2, ..., VZ = 26. For a message, he calculates the hash value H = (VChar 1 x VChar 2 x VChar 3 ...x VChar N) mod(26). Bob uses this function to send a one-word message, LARGE, to his banker Bill, along with his calculated hash value for the message. Alice is able to intercept the message, and generates an alternative message that has a hash value that collides with Bob's original hash value. Show.
Explain how the relative speed of the 100BaseT LANs used at each location compares to accessing the WAN link between the two sites.
When one of these packets arrives to packet switch, what information in packet does switch use to determine link onto which packet is forwarded?
Site networks are connected to form wide area network using frame relay technology. Webservers located at each site provide access to information resources.
Other building a mainframe computer. What is the best way to connect the workstations to the mainframe computer? Explain your reasoning and all the possible solutions you considered.
She has bids from several companies in order to install (1) Wi-Fi, or (2) a switched Ethernet 100 Base T network. She wishes you to provide her some sense of relative performance of the alternatives so that it may be related to the costs of each o..
Define the type of packet filters that you might build to capture traffic destined to you six critical Web servers?
Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on earth. What is the propagation delay of the link?
An entrepreneur is interested in establishing her own world-wide satellite radio infrastructure and has requested your help. Describe and justify the infrastructure that you would develop.
Discuss the role of Technology in improving the relationship building process Do you think that the setting of a PR department may be helpful for the ISP provider? Why?
Let N users participating in audio/video conference by using IP multicasting. How many distinct SSRCs are required?
Create variant of Kerberos in which the workstation generates TGT. TGT will be encrypted with user's master key rather than KDC's master key.
Assuming that it is possible to protect the repository from attack, what are the disadvantages of this approach?
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