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Describe at least three different networks (computer or data communications) which you access or interact with on an average day.
Binary data codes like EBCDIC, ASCII, or Unicode are often presented using hexadecimal notation rather than a long list of 0's and 1's. Likewise other items requiring long sequences of 0's and 1's like IP addresses to identify network location are generally presented in non- binary formats as well. Describe the relationship between a hexadecimal character and its associated binary. Describe the relationship between one octet of an IP address and its associated binary. Explain why these notations are often utilized rather than the full binary. A company noting the success of 24-bit digital audio technologies compared to earlier 16-bit digital audio technologies has decided to work on developing a 28-bit digital audio technology. Describe the type of signal conversion being utilized and what the difference in bits means. Discuss whether or not you believe this company has a good plan.
During the class, you will be characterizing a network in your home, office, or community. You need to choose that network now. At the end of the course, your final project will be a proposal for revising the infrastructure for that network. The chosen network should include at least three computers and should have access to the internet. You should have access to all aspects of the chosen network including the networking devices (modems, routers, switches, etc), the media (wires or wireless), and at least one of the computers.
You are the Information Security Officer at a medium-sized company (1,500 employees). The CIO has asked you to explain why you recommend it is so important to secure your Windows.
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.
As security manager at XYZ Corporation, you are responsible for managing intrusion detection environment. If you were given the ability to build the environment from scratch, would you use network based IDS, host based IDS, or a combination?
Suppose a future where security countermeasures against DoS attacks are much more widely implemented than at present.
How could you interconnect the two areas? Assuring that the network has immunity from the interference; re-evaluate your choice explaining the best medium(s) to utilize.
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.
Analyze the advantages and disadvantages of using mobile computing technology to monitor patients.
The following are the four main wireless technologies used to access various network resources: Radio wave, Infrared. Explain three advantages and three disadvantages of each of these wireless technologies.
A consulting firm has narrowed the choice of programming language to Java and C#. Which language do you think would be more appropriate for this application and why?
Explain authentication and authorization. Which depends on the other? How and why are these processes more complex in a modern networked organization.
If IPSec gives security at network layer, why is it that security mechanisms are still require at layers above IP?
Describe what types of problems could result from having a mix statically and dynamically assigned addresses on the same network.
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