Q2 (a) Differentiate between computer literacy and information systems literacy. (4 marks) (b) Elaborate THREE (3) Internet security technologies and tools to safeguard information resources in organisation against external threats. (6 marks) (c) Contrast between spoofing and sniffing, in terms of mechanism of their operating executions. (6 marks) (d) Elaborate Two (2) impacts of Denial-of-Service attacks (DoS) towards the users and the system. (4 marks)