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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?
(c) Describe how access control is implemented on windows XP.
(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.
What is information security Information security protects information (and facilities and systems which store, use and transmit it) from a broad range of threats, in order to p
crack the secret message and explain how the code works. The clue is that it has something to do with the computer keyboard. J-Q-H-6 Q-E-F-Q-H-D-3-W 8-H 5-Y-3 7-W-3 9-R--D-9-J
GROWTH OF LAN TECHNOLOGY The production of shared communication channels (LANs) started in 1960s and early 1970. The basic idea behind was to reduce the number of connectio
QUESTION: (a) Ethernet has grown in popularity in the recent years and is now used in LANs. Give three reasons for the success behind Ethernet. (b) Ethernet uses the CSMA/CD
Example 3: Logic bombs In the year 2000, Timothy Lloyd was found responsible of causing $10 million and $12 million of damage to Omega Engineering, an American company specializ
(a) Describe the concept of zero knowledge proofs. Give a practical example. (b) Explain how a one way hash function works. (c) What are message authentication codes? (d)
How much would it cost to have a project completed by tomorrow night?
Assume that a security model is needed for the protection of information in your class. Using the CNSS model, examine each of the cells and write a brief statement on how you would
DIRECT INDEXING It is less usually known method. It is possible only is cases where protocols address are given from a compact range. In the diagram below an example of direct
Question: (a) A string of ciphertext was enciphered using an a±ne transformation of single letters in a 28-letter alphabet consisting of A to Z, a blank and a?, where A to Z ha
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