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QUESTION
(a) Using the Luhn 10 check formula verify whether the following account number is compliant: 49927398716. Show details of your workings
(b) Why is it advisable to provide a virtual keypad to the user for entering the password or any sensitive information such as credit card numbers?
(c) The .NET framework provides several hashing algorithms in the System.Security.Cryptography namespace namely the SHA1CryptoProvider, and the SHA1Managed. Distinguish between the CryptoProvider and the Managed classes. Your answer should include advantage(s) and/or disadvantage(s) of each
(d) (i) Why the Random class in the .NET framework is not suitable for generating random bytes for cryptography purposes?
(ii) Name the class that is typically used for generating random bytes for cryptography purposes. Are the values generated truly random? Justify your answer
PROBLEM SOLVING USING A COMPUTER The following steps are required for solving a problem using a computer system: Problem Definition Program Planning (Preparati
What are the characteristics of algorithm?
QUESTION (a) Compare the adapter pattern with the façade and decorator patterns. (b) Illustrate a two-way adapter pattern. (c) Describe 3 components of a pattern. (d)
INTERNET Internet: The global network of computers linked by exclusive and regular phone lines and microwave and satellite signals. Extranet: An extranet is the part of
Variables and Constants: These are the smallest components of a programming language. For writing a program, one must know how to use the internal memory of a computer. A Com
Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers [7] 2.2 In a given day he will sel
Question 1 What are the five subscriber-related signaling functions performed by the operator? Question 2 Compare Microprogrammed control and Hard-wired control Que
COMPUTER DATABASES: As would be evident from the foregoing description, literature search is essentially a process of information retrieval. The term "Information Retrieval" w
CONCEPT IN PROGRAMMING LANGUAGE: A Programming Language is used to design and describe a set of instructions and computations to be executed by a computer. To do programming,
The latest threading module comprised with Python 2.4 provides much more powerful, high-level hold for threads than the old thread module. The threading module depictions all the m
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