ICT Chapter 4,5,7 networks ,effects of ICT and system life cycle 1 The introduction of computers into the workplace has caused some changes in employment. (a) Identify two different types of job where employment has decreased. 1 ........................................................................................................................................ ........................................................................................................................................... 2 ........................................................................................................................................ ........................................................................................................................................... [2] (b) Identify two different types of job where employment has increased. 1 ........................................................................................................................................ ........................................................................................................................................... 2 ........................................................................................................................................ ........................................................................................................................................... [2] 2 Describe the details of computer addresses that are stored by a router. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. [4] 3 Juanita has a computer and a contract with an ISP. When she searches the internet she does not find relevant information quickly. Describe three ways she could reduce the amount of excess information she gets without changing either her computer or ISP. (a) ................................................................................................................................................ .................................................................................................................................................. (b) ................................................................................................................................................ .................................................................................................................................................. (c) ................................................................................................................................................ .................................................................................................................................................. [3] 4. (a) A school’s Science department has a network which uses WiFi. A teacher has a laptop computer and whilst in school wishes to connect to this network. Write down the name of this type of network. ........................................................................................................................................... [1] (b) In order to access the network the laptop must be within range of a type of WiFi network device. (i) Write down the name of this type of device. ................................................................................................................................ [1] (ii) Describe how this device is connected to the network using an ethernet cable. ................................................................................................................................ ................................................................................................................................ [1] (c) WiFi networks can be limited in their range. Describe one other disadvantage of a WiFi network compared to a cabled network. ........................................................................................................................................... ........................................................................................................................................... [1] 5.(a) Explain what is meant by VOIP. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... [2] (b) Name two items of computer hardware that are needed in order to make a VOIP phone call from one computer to another. 1 ........................................................................................................................................ 2 ........................................................................................................................................ [2] 6. FTP is an internet protocol. Explain what is meant by FTP and how it differs from HTTP. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. 7. Name and describe three methods of implementing a new computer system. For each one describe the type of situation where each method might be used. 1 ................................................................................................................................................ .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. 2 ................................................................................................................................................ .................................................................................................................................................. [4] .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. 3 ................................................................................................................................................ .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. [9] 8 Tick whether the following statements are true or false. true false ( ) ( ) WLANstandsforWideLocalAreaNetwork. AWANoftenrequirestheuseofarouter. TheinternetisaWAN. ALANusuallycoversasmallerareathanaWAN. [4] 9 Different types of test data are used to test a newly developed system. Complete the following sentences. (a) Data which is of the correct type is called ........................................................................................................................................... [1] (b) Data which is outside a given range is called ........................................................................................................................................... [1] (c) Data which is at the boundaries of a given range is called ........................................................................................................................................... [1] (d) Data which has been used with the current system and the results are known is called ........................................................................................................................................... [1]
