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Question:
(a) What do you meant by the term diffusion and confusion? Explain how diffusion and confusion can be implemented.
(b) Distinguish between authorisation and authentication.
(c) The Access Control Matrix is not implemented in practice. Why? How is it implemented.
(d) Explain the principle of complete mediation and principle of least privilege.
(e) What do you meant by the term "Timely revocation of trust"? Give example of a where it might be used.
(f) People normally tend to write their password down. Explain a mechanism that will be used to prevent people snooping around to get the written password.
(g) Password transmitted on the network will be captured and re-used by an attacker. Describe how the server can detect that a password has been captured and is being used by an attacker and not by the legitimate user.
(h) Give reasons why biometrics is not as popular as password based systems.
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 w
Network diagram for a mediacal care
(a) Describe briefly the difference between flow control and congestion control in relation to a connection-oriented protocol such as TCP. (b) What is the initial rate of data
RISK ASSESSMENT Risk assessment is a step in a risk management technique. Risk assessment is the determination of quantitative or qualitative value of risk related to a concrete
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FRAGMENT IDENTIFICATION: IDENT field in every fragment matches IDENT field in real datagram. Fragments from different datagrams may arrive out of order and still be saved out.
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Consider the following case study: In order to avoid criticisms of their existing manned road-toll payment system on its private road, WS-Pass has decided to adopt an automated
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