Describe how access control is implemented, Computer Network Security

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Question:

(a) How can you prevent someone from accessing your computer when you leave your office for some time?

(b) What is the difference between a classic login and a welcome login in Windows XP professional? Which one is more secure?

(d) How can you protect files on Windows XP computer such that they can be read only by yourself?

(e) List the 6 settings that can be configured for the password policy in Windows XP.

(f) What is the use of cookies? Can they contain viruses? What serious threat can cookies prove to security?

(g) Describe how and where a secret key can be securely stored, assuming Windows XP operating system.

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