This examination was taken during the summer vacation by those students who failed the original examination in January. If your browser does not support superscripts, then some of the formula will appear to be incorrect or non-sensical.
All questions carry equal marks.
The marks for a particular section of a question are indicated in brackets at the end of the section. Answer section A. Answer 2 of the 3 questions in section B. Answer 1 of the 2 questions in section C. Write on both sides of the answer paper. Use the Pascal language for program code. Give one advantage and one disadvantage that arise from the use of graphical interfaces. Give two applications of networks.