1. A washing machine is controlled by microprocessors. The name given to this type of microprocessor is: A a mainframe computer. B an output device
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1 SECTION A Answer ALL questions. For each question, choose an answer A, B, C or D and put a cross in the box. Mark only one answer for each question. If you change your mind, put a line through the box and then mark your new answer with a cross. 1. A washing machine is controlled by microprocessors. The name given to this type of microprocessor is: A a mainframe computer B an output device C an embedded computer D a console 2. Copies of files can be stored on an external hard disk. An external hard disk is a type of: A primary storage B secondary storage C random storage D read-only storage 3. The entrance to a building can be controlled by fingertip scanners. These devices are: A biometric scanners B digital scanners C encrypted scanners D analogue scanners Page 1 of 16
2 4. When using a search engine, which one of these search criteria would produce the smallest number of results? A dogs and cats B dogs and cats C *dogs and cats D dogs or cats 5. Which type of software is used to set up a flight simulation to help train pilots? A database B spreadsheet C CAD D graphics 6. Which of these is not a true statement about check digits? A check digits are worked out using a mathematical calculation B ISBN numbers on books use check digits C check digits are a type of validation D check digits make sure that numbers fall in a particular range 7. When using a web browser 'temporary' pages are stored in: A history B favourites C temp D cache Page 2 of 16
3 8. Which of these is a true statement about ROM? A data is lost when the computer is switched off B data can be changed C it is non-volatile D it is volatile 9. The Act introduced to make hacking illegal is the A Data Protection Act B Copyright, Designs and Patents Act C Computer Misuse Act D Hacking Protection Act 10. What does FTP stand for? A Firewall Transfer Programming B File Transmission Protocol C File Transfer Protocol D File Transfer Program 11. What is a spider? A a program that crawls around the web and stores pages in search engines B hacking software that spreads virally C software that examines network vulnerabilities D a protocol for distributing large files Page 3 of 16
4 12. In a database Swimming is encoded as SWM. One reason for encoding the data is that it: A cannot be read by hackers B difficult to understand C impossible to verify D easier to validate 13. User s ability to view, edit and delete files on a computer system can be controlled. This is done by: A encoding data B setting access rights C installing an internet filter D backing up files 14. The software that must be installed on a computer to access web pages is: A a web crawler B an ISP C a search engine D a web browser Page 4 of 16
5 SECTION B 15. Look at the diagram and answer the questions below. a) Add another input device to the diagram by writing its name in box A. b) Add another output device to the diagram by writing its name in box B. c) Show the direction of data movement by putting arrows on lines C, D, and E. 16. Data is often collected using automated methods including Optical Character Recognition (OCR), Magnetic Ink Character Recognition (MICR), Optical Mark Recognition (OMR), Magnetic Strip reading and Bar Code reading. For each application state which of these methods would be the best choice. Explain why it is most suitable. a) Reading the account number on a gas bill. Method... Reason b) Reading data from a cheque. Method... Reason Page 5 of 16
6 17. Small joysticks may be used to control electric powered wheelchairs. People who use this type of wheelchair may have little movement in their arms or hands. Describe how the movements of a joystick may make it easier for people with this type of disability to control their electric wheelchair. 18. The diagram shows a standard PC. The system unit is where all the computer processing takes place. All other devices are connected to it. (i) The computer has a 2TB hard drive. State what is meant by the term TB. (ii) Identify the speed of the computer processor. Page 6 of 16
7 (iii) Give two types of external storage devices that can be used with the computer (iv) The computer has a graphics card. Identify one type of application that will benefit from having a high capacity graphics card.... (v) The computer has an 8GB RAM chip. Explain the role of RAM when data is being processed. 19. Pupil records are kept on a computer in the head teacher s office. It is not connected to a network of any description. a) Occasionally, a pupil s record will need to be altered. In order to do this efficiently, individual records have to be retrieved straight away. (i) What form of file access is this called? (ii) What type of magnetic medium allows this type of access? b) Pupils are worried that their personal data could be misused. Name two things the head teacher could do to make sure that the personal data is kept secure. 1 2 Page 7 of 16
8 c) The teacher needs to keep a backup copy of the data. Describe what is meant by a backup and why it is needed. 20. Which 3 of the following are tasks carried out by the operating system of a computer? A Transferring data from the keyboard to the computer B Finding a record in a database C Allocating CPU (processor) time to a task D Finding a website about African animals E Editing a word-processed document F Managing the memory of the computer The figure shows a number of drawing objects from the toolbox of a vector graphics drawing program. Object 1 Object 2 (i) For object 1 and object 2, state two properties common to both types of object, which would be recorded when used in a drawing (ii) State one other property for object 1 which would be recorded when used in a drawing.... Page 8 of 16
9 (iii) Graphics can be created with either vector graphics software or bit-mapped software. If the graphic is enlarged it may become distorted if created with bit-mapped software but show no distortion if created with vector graphics software. Explain this statement. 22. A county has a number of local libraries in various towns. Each library has a local area network (LAN) for lending and enquiries shown in Figure below: a) (i) Describe what is meant by a local area network.. (ii) Name two other devices which could be added to the network each of which would be a resource shared by users (administrators and/or borrowers) of the network Page 9 of 16
10 b) There is currently an Internet connection from one of the PCs, and staff uses this to contact a book supplier by keying the following into the address bar of the browser software. (i) What is the domain name of the supplier? (ii) What is home.htm? (iii) Sometimes when the browser is used the software displays the error message Page Not Found. Give one possible reason for this, other than a misspelling of the URL. 23. It is important that data stored in computer systems is kept safe. One way in which data can be damaged is by viruses. a) Describe two other threats to data stored on a hard disk b) How can attack by viruses be prevented? Page 10 of 16
11 24. In the following diagram identify the devices which are labeled as A, B, C, D, and E. A:.. B:.. C:.. D:... E:.. Page 11 of 16
12 25. The bank must adhere to the principles of the Data Protection Act (DPA). One principle of the DPA states that Data should be adequate, relevant and not excessive. Give two other principles of the DPA When students log on to a LAN (Local Area Network) they have to enter a username and password. a) State 2 rules to be followed about using passwords b) Sometimes students using the network find that it is very slow. Give one reason why network access might be slow and suggest a solution. Reason... Solution c) The network is going to be upgraded to a wifi network. What is meant by wifi? Page 12 of 16
13 d) Many students at the college have mobile devices such as smart phones or tablet computers. Some staff believe that using these devices enhances learning, others disagree. Discuss the advantages and disadvantages of allowing students to use mobile devices in the college. 27. A large city has decided to computerise totally its traffic management system. Traffic lights and electronic road signs are now under automatic computer control. a) Sensors are placed around the city to gather information about traffic. Describe what information would need to be gathered. Page 13 of 16
14 b) Describe two ways the information from the sensors could be sent to the central computer which is located several miles away. 1 2 c) Give two advantages of having the traffic in the city controlled in this way The health problems given below are all related to use of ICT equipment. For the problems below, state the cause and explain how the risk of the problem arising can be reduced. a) Headaches Cause... How risk can be reduced..... b) Repetitive Strain Injury (RSI) Cause.. How risk can be reduced..... Page 14 of 16
15 29. i) Mr. Sanjay wants to change the heading to more reasonable heading. Help him to edit the line to change the heading (Enter the details) to. Rewrite line 3 in the space given:. ii) Mr. Sanjay wants to change the size of the font (one size smaller) in the given heading. Help him to edit the line 3 to change the size of the font. Rewrite line 3 in the space given:. 30. Part of the database is shown below: Page 15 of 16
16 a) Identify the Primary Key(s) of this table (if there is any). b) Validation rules have been set on ID. (i) Explain what is meant by validation. (ii) Give an example of a validation rule that could be used on ID. c) Databases can be flat file or relational. (i) Describe the differences between a flat file and a relational database. (ii) Explain the role of the key field in a relational database. d) The data will need to be checked for accuracy. Describe 2 methods of verification which could be used The Central library has decided to change its manual borrowing system to a computer system. A database of borrowers will need to be created. The details of each borrower will be typed into a screen input form. Design a screen input form which the library could use for typing in the borrower details. ****************************************************************** Page 16 of 16
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