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Problem:
a) Explain what you understand by the term brute force attack, giving an example of such an attack
b) Briefly outline the concept of Caesar cipher and identify any associated weaknesses.
c) Explain what you understand by encryption/decryption and state on what two things the security of encrypted data is entirely dependent.
d) Explain briefly what SSL (Secure Socket Layer) is and how it can be applied to e-banking services to ensure security?
e) Briefly explain what a Digital Certificate is and how it is used in conjunction with PKI (Public Key Infrastructure)?
f) Explain how asymmetric key encryption ensures both confidentiality and authenticity.
Question: (a) Identify the information needs of managers at the different levels of an organisation and discuss the different types of Information Systems which support those
Day-to-Day Management of Information Systems It must be emphasised here, that a system once implemented, requires day-to-day management to ensure its proper functioning. In t
Brief on knowledge management
Subject Directories Subject directories, also known as subject guides allow people to browse information by subject. They are hierarchically organised indexes of different su
what is mean by inputs
Steps in System Analysis The following are the steps involved in systems analysis: Define the system (definition of the system) including its scope; Analyse the ope
Question: a) List four powerful worldwide changes that have altered the business environment and brought about the deployment of Information Systems in organisations? b) B
Components of SDI System To be operational, the SDI System must have the following components built into it:. i) users represented by profiles ii) database or docum
Question: a) A wide spectrum of mobile/branchless banking models is evolving. These models differ primarily on the question that who will establish the relationship with the e
Question 1: (a) Describe the Business Process Reengineering concept and explain how redesigned business processes and Enterprise Systems are related. (b) Explain the differe
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