Trapdoors/backdoors is categorized as one of a malicious code. But sometimes, it is desirable in software development. Explain 'good' and 'bad' of trapdoors/backdoors. (2 marks)

 You are working as a programmer at Microsoft. Microsoft wants to develop a new brand of Operating System (OS) that applies "Trusted Operating System" components.

a) Apply FOUR (4) components of the Trusted Operating System and (4 marks)

b) give an example of each of the components. (4 marks)