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.

Column A Column B            1. Bandwidth A.  The weakening of signal strength over distance.   2.   Unshielded twisted pair B   A suite of protocols used on the internet.   3.   Uninterrupted Power Supply C.  A wireless technology for sending data over short distances using radio waves.   4. Firewall D.  Using air as a communication medium.   5. Attenuation E.  Software that monitors computer usage and sends details to a third party.   6. Unbound Media F.  A powerful computer that controls and supplies resources to nodes on a network.     7. TCP/IP G.   A device that ensures a continuous supply of power to sensitive equipment.   8. Bluetooth H.   A copper wire cable used with star topology networks.     9. Server I.    A system to stop unauthorised use of a private network.     10. Spyware J.   The maximum data handling capacity of a communication medium.           (10)

1.2 Write down the most applicable term for each of the following descriptions. Write out the word(s) in full.   1.2.1 A device used to connect all the computers in a network.   1.2.2 A type of cable that is not affected by EMI(Electro-magnetic Interference) and lightning in a computer network.   1.2.3 A place that allows people to access the Internet using a wireless connection on a mobile computing device.   1.2.4 The unit in which the speed of data transfer is measured.   1.2.5 A device that allows us to connect LANs together to form a WAN       (5)     [10]

3.3 There are many different ways of connecting to the internet.   3.3.1 What type of internet connection would you recommend to the chairman? (1) 3.3.2 Motivate your answer. (2) 3.3.3 With each type of connection there are several package offerings. Recommend a package dealing specifically with CAP and Bandwidth. (4)     [22]

QUESTION 4 (Long answers ) [6] Answer the following questions using the table below and write down only the correct answer.   ITEM Price per batch One hydraulic jack uses: Steel cylinders in shape of pump (x100) R6000 1 Pump output piston (x25) R650 1 Pump input piston (x25) R550 1 Jack handle (x100) R3150 1 Bolts (x1000) R4100 8 One way valve (x10) R250 1 Hydraulic fluid (10 liters) R2000 250ml  

QUESTION 4 (Long answers ) [6] Answer the following questions using the table below and write down only the correct answer.   ITEM Price per batch One hydraulic jack uses: Steel cylinders in shape of pump (x100) R6000 1 Pump output piston (x25) R650 1 Pump input piston (x25) R550 1 Jack handle (x100) R3150 1 Bolts (x1000) R4100 8 One way valve (x10) R250 1 Hydraulic fluid (10 liters) R2000 250ml  

3.6 Does gear C rotate faster or slower than gear A and B? [1]

3.6 Does gear C rotate faster or slower than gear A and B? [1]

4.4 If this hydraulic jack is sold for R250, what is the profit the manufacturing company makes? [2]

3.3 If gear A turns clockwise, in which direction will gear B turn? [1]