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Question:
(a)
i. Explain what is meant by Discretionary Access Control and Mandatory Access Control
ii. Which method would be the most effective to ensure that users do not share files with other users not approved for access?
(b) Outline three main differences between the Liberty Alliance specification and the Microsoft .NET Passport System.
(c) Explain what is meant by the term ‘single sign-on' in the context of access control?
(d) Give three examples of single sign-on technologies.
(e) Compare the relative merits of a network based IDS and a host based IDS.
(f) Explain the main stages in the penetration testing process.
Question: (a) Draw the waveform for an asynchronous transmission with the following specifications: Character "H", one even parity bit, one start bit, one stop bit, and a b
Describe the important features of application layer. The features of the application layer are as follows. 1. Efficient User Interface Design is explained below: Appli
The method used to check errors is checksum . In this method data is treated as a sequence of integers and their arithmetic sum is calculated and the carry bits are added to the
Gateways They transfer packets among network machines that have different protocols (e.g. between a WAN and a LAN). They access a packet formatted for one protocol and change
UDP COMMUNICATION SEMANTICS: UDP needs IP for all delivery, that is, similar best effort delivery as IP. To use UDP, an application have to either be immune to the causes or
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 auth
QUESTION (a) Describe the difference between static routing and dynamic routing algorithms. (b) List four functions that are performed by the Cisco IOS software during b
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
Question: Spreadsheet packages are widely used in Business. a) Explain why spreadsheets are so useful. b) Spreadsheet files are sometimes saved for use by other software
CRC can detect the following errors better than check sums. a) Vertical errors b) Burst errors a) VERTICAL ERRORS: This kind of error happens due to a hardware fai
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