What is your understanding of operating systems vulnerabilities and hardening practices?

In a 2-3 page paper, complete the following:
Compare the differences between MAC and H-MAC.
Explain why using H-MAC is more secure than MAC?
Be prepared to fully support your argument.
Give examples of commonly used MACs and H-MACs.
The paper should be written using the APA writing style.

a conversation has ended, no posts to the DB will be accepted after the end of each unit.
What is your understanding of operating systems vulnerabilities and hardening practices?
How should one go about in hardening operating systems and applications, such as a Web Sever? (For hardening of operating systems, you should choose one operating system. For example, you could choose, Windows, Unix, Mac, etc).
Do you think one system is really better than the others or, it is personal preference? Explain your answer.
What are some reasons why an organization would choose one operating system over another? Explain in terms of systems security.

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