INSTRUCTIONS   1. Answer all questions   2. The marks allocated to each question are shown in brackets ( ) at the end of the question  

Line Number Description 1 countHighRatings  ← 0 2 countLowRatings  ← 0 3 Input ticket number 4 While ticket number not equal to 0 5 Start While loop 6 Input Rating 7 If rating equals 1 8 countHighRatings ← countHighRatings + 1 9 Otherwise 10 countLowRatings ← countLowRatings + 1 11 End While Loop 12 Display countHighRatings 13 Display countLowRatings

  A   B C Working space X 0 0 0     0 0 1     0 1 0     0 1 1     1 0 0     1 0 1     1 1 0     1 1 1    

INSTRUCTIONS – READ CAREFULLY 1. This paper consists of 6 pages. Please check that your question paper is complete.   2. Answer all questions on your exam pad. After completing the paper, scan in your answers, in the correct order, to a pdf file, and then upload. Remember to save your files with the name of the document and your name before uploading. 3. Read the questions carefully and make sure that you answer all parts of each question.   4. Show all working where applicable.   5. Non-programmable calculators may be used.   6. Number your answers exactly as the questions are numbered. 7. It is in your own interest to write legibly and to present your work neatly.

Question 4 Data Communication and Networking   4.1 The doctors who have consulting room in the clinic, the laboratories, the nursing stations, the reception etc. are all joined into a large network.   4.1.1 What type of network would this be? (1) 4.1.2 Would you recommend a client/server network or a peer to peer? Motivate. Give 3 advantages of your choice. (4) 4.1.3 In addition to the PCs, the hospital staff and the doctors also use tablets.   a. Give 2 uses for tablets in such a setup. (2) b. Name 1 possible communication medium tablets can use (1) 4.2 The doctors often need to consult with one another and also with doctors in other centres and countries. In order to facilitate this, a VPN (Virtual Private Network) has been set up.   4.2.1 Explain what a VPN is. (3) 4.2.2 This now also requires an ISP (Internet Service Provider):-   a. What is an ISP? (2) b. Explain why one is required. (2) 4.3 One of the advantages of the network is that video conferencing can take place, and doctors, even in foreign countries, can observe operations in real time.   4.3.1 Explain briefly real time. (2) 4.3.2 Would we be using download, upload or streaming to achieve this? (1) 4.3.3 Explain how your choice works. (2)     [20]

Question 1 Terminology   1.1 Give the most appropriate term for each of the following descriptions.   1.1.1 The maximum amount of data that can be transferred per second over a particular communication medium.   1.1.2 A copper cable commonly used as a network medium.   1.1.3 A device that converts analogue signals to digital and vice versa to allow communication over normal telephone lines.   1.1.4 The simulation of human decision making processes by a computer system.   1.1.5 An input device that converts from hard copy to soft copy. (5)

Question 2   Computer architecture and hardware. As part of a very large private clinic, the Doctor is linked to the main computer system in the clinic. From his consulting rooms, he has access to all of the tests run on any patient, whether it be xRays, CATScans, blood and cholesterol tests etc. he is able to display any of these tests on the computer workstation in his rooms.

Scenario:  NB questions throughout the paper will be based on this scenario.   All the students in the IT class have been instructed to make a presentation on the use of computer technology in a specific work area. Aaron’s father is a well-known surgeon. Aaron is aware that this is an area that computers have proved to be especially beneficial and his father agreed to spend some time with him, showing him how they use ICT in his particular setup. After spending time with his father, Aaron prepared his presentation and delivered it to the class. After the presentation, Aaron was asked a number of questions.

2.2.5 Hierdie proses hierbo beantwoord in Vraag 2.2.4, stel byprodukte vry, kies asseblief die korrekte twee wat gevorm word. [1] [2] (2)

3.2.4 Terwyl al die grafieke die roofdiere prooi verhouding wys, dui watter sleutel korrek is.     A. Grafiek A B. Grafiek B C. Grafiek C D. Grafiek D (2)