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You are a network administrator, and your employer just doubled in size by acquiring your number one competitor in the same city. There are now two corporate buildings, on opposite sides of the city. Both will be used, and need to be tied together with a network. Management's vision is that each site can be a disaster-recovery site for the other, so that if one goes up in flames, the other site can run the company. Assume that the server administrators will address the need for redundant systems, and will manage backups and data replication as needed. To supply connectivity, what network connectivity do you propose between the sites? How will this support the disaster-recovery vision and the need to replicate data between the sites?
(Multiplexers) Assume a dual-railed system, where you have access to any vari- able and its complement. Implement the following four-input Boolean function as indicated in each of the following subsections.
It shows a CDMA example that supports two senders. Suppose that the receiver wanted to receive the data being sent by sender
Suppose you are designing the application-layer protocol for streaming video. How would you deal with unreliability of Internet Protocol?
Analyze the result we obtained regarding the HTTP page response time. Collect four other statistics, of your choice, and rerun the simulation of the Simple and the Busy network scenarios.
Design the network for new building and define the subnet and define the topology that will be used.
Illustrate how many protocols and protocol implementations are required to permit all nodes to communicate?
Compute the total time required to transfer a 1000KB file on a 1Mbps link with an RTD of 100msec ans a packet size of 1 KB in the following cases.a).
Write client and server, Java Swing application using socket connections which permits the client to specify filename to server in Textfield and server send contents of text file back to client if it exists.
Compare the time for a query and response for a complete DNS query and response (to all required nameservers) if M=1, M=2, and M=3.
Richard Sclove argues that we must do more to acknowledge technoogy's 'polypotency.' What does this term mean, why does Sclove think that it is significant to acknowledge this characteristic of technology?
List and discuss the four broad classes of services that a transport protocol can provide. For each of the service classes, indicate if either UDP or TCP (or both) provides such a service.
Write down the advantages of some of the current technologies including VoIP, Unified Communications, Virtual Private Networks.
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