9626_w23_qp_32 - revisedeck

9626_w23_qp_32

A paper of Information Technology, 9626

Questions:

11

Year:

2023

Paper:

3

Variant:

2

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1

Stored value cards can be used for making transactions such as paying for travel on public transport or for buying food and drink in cafes. Explain the benefits of stored value cards. Describe two drawbacks of stored value cards.

12. IT in society → 12.1. Digital currencies

10. Database and file concepts → 10.4. File and data management

Open

2

Different methods can be used to make objects appear to move in computer animations. Explain why key frames are used in computer animations. Describe how property key frames are used in computer animation.

20. Animation → 20.1. Animation

Open

3

Bitmap images can be compressed when stored and used on computer systems. Analyse the effects of the two main methods of image compression on a bitmap image.

19. Graphics creation → 19.4. Compression

19. Graphics creation → 19.3. Bitmap images

Open

4

Cellular networks are used to provide mobile communications for users. Describe the structure of a cellular network. Explain how cellular networks allow large numbers of mobile phones to connect without interference from other mobile phones.

14. Communications technology → 14.8. Mobile communication systems

14. Communications technology → 14.1. Networks

Open

5

Users may connect their smartphones to a local area network (LAN). Describe two reasons why a wireless connection to a local area network (LAN) may not be as secure as a wired connection. Explain how a secure Wi-fi connection is established and maintained between a smartphone and a local area network (LAN).

14. Communications technology → 14.9. Network security

14. Communications technology → 14.1. Networks

Open

6

Loops in JavaScript repeatedly execute blocks of code. Describe how a for loop works in JavaScript code. Contrast the use of while and do while loops in JavaScript code.

21. Programming for the web → 21.1. Programming for the web

Open

7

In JavaScript, an object is defined as a collection of properties which can be amended or deleted. Describe how an object may be given a new property. Describe how the properties of an object in JavaScript can be displayed using a loop.

21. Programming for the web → 21.1. Programming for the web

Open

8

A healthcare organisation has centres in different towns and cities. The organisation uses a networked computer system that allows healthcare professionals to access patient records and appointments from any centre. The user interface for accessing patient records and appointments is going to be replaced. The organisation is considering using pilot implementation. Evaluate the use of pilot implementation to replace the user interface for the computer system.

16. System life cycle → 16.5. Implementation

16. System life cycle → 16.7. Evaluation

Open

9

Describe the benefits to businesses of employees using instant messaging to communicate with other employees for business purposes.

12. IT in society → 12.3. Social networking services/platforms

12. IT in society → 12.4. The impact of IT

14. Communications technology → 14.5. Data transmission across networks

Open

10

A small company is considering installing a mail server to manage email for its five employees. Discuss the advantages and disadvantages to the company of using its own mail server. Please turn over for Question 11.

14. Communications technology → 14.3. Network servers

14. Communications technology → 14.1. Networks

Open

11

Technicians improve software by carrying out maintenance. Corrective maintenance modifies software to correct problems that have been identified in error reports from users. Identify and describe two other types of software maintenance carried out by technicians. Software maintenance 1 Software maintenance 2

16. System life cycle → 16.10. Maintenance

Open