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"IT and technical organizations often assume that they can build a system or application in-house, in lieu of packaged products, either commercial or open source. Support can be a very expensive proposition -- often many times more than the cost of the product in the first place.
Does this mean it is better to build it yourself? What should one do?"
What were the most important things Cisco managers did right, i.e., where had the ERP team been "smart'? How did Cisco manage unanticipated problems?
As the data center manager for your organization, you have been asked by the CIO to provide a short presentation on the advantages and disadvantages of replacing old servers with new servers.
For the purposes of this question you do not need to know about the token access method. You just want to explain the features and benefits of CSMA/CD.
Assume that N Ethernet stations, all trying to send at same time, need N/2 slot times to sort out who transmits next. Describe available bandwidth as function of N.
Make a list describing different common types of server applications. Show which of these applications you would combine together on a single server.
Research three recent information security breaches. Do main targets seem to be larger or smaller companies? Is there a particular industry which seems predominately targeted?
Research to see how the Internet is put together. What are some key pieces of the basic architecture of the Internet?
Derive a general expression for the width of a bit in terms of the propagation speed s, the transmission rate R, and the length of the link m.
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.
Describe some of the advantages of having a componentized system. For example, what happens if the microwave breaks?
Using Ethernet Network Interface Cards or NICs, diagram simplest connection between two computers which will allow for communications and resource sharing.
Suppose two hosts, A and B, are separated by 20,000 kilometers and are connected by a direct link of R =2 Mbps. Compute the bandwidth-delay product, R?tprop.
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