Discussion 9

discussion_instructions.docx

Home >Information Systems homework help >Discussion 9

Instructions: Do not combine topics. Answer each letter separately. All answers must be at least five (5) sentences. Label each answer individually. Include any references.

1) " "Security Models and Cloud Operations" Please respond to the following:

• A) Find at least two (2) articles describing an industry using three (3) different security models. Also, read the National Cybersecurity Center Policy Capture, located at http://www.whitehouse.gov/files/documents/cyber/CybersecurityCentersGraphic.pdf. Note: Wikipedia and similar Websites do not qualify as quality resources. Analyze the industry researched for each security model would be most applicable, and explain why you believe that to be the case. Identify the security models from your findings.

• B) Find one (1) real-world example of where a corporation has deployed a part of its operations to the cloud and addressed organization security along the way. Also, reference the US Government Cloud Computing Technology Roadmap Volume II, located athttp://www.nist.gov/itl/cloud/upload/SP_500_293_volumeII.pdf. and ascertain the primary way in which the organization that you researched was able to leverage a cloud solution while overcoming its security concerns. Discuss whether or not you believe that the security concerns surrounding cloud operations are warranted. Justify your answers with real-world examples from applicable situations, where appropriate.

2) Digital Transmission. Please respond to the following:

· A) Compare and contrast the data communication technologies of guided media and unguided media. This should include transmission media, data link control protocols, and multiplexing.

· B) Compare digital transmission to analog transmission to determine the advantages of digital transmission. Provide at least one example to support your response.

3) T-1 Lines. Please respond to the following:

· A) From the e-Activity, analyze the multiplexing techniques of DSL and cable modem Internet and suggest the one you prefer. Explain your decision.

· B) Research the Internet for an article, publication, or online document written in the last 12 months that describes how DSL and cable modems use multiplexing. Compare and contrast the use of leased lines in a WAN or LAN setting. Then recommend what you would use if you were a CIO. Support your response with evidence or examples.