9626_s22_qp_31 - revisedeck

9626_s22_qp_31

A paper of Information Technology, 9626

Questions:

9

Year:

2022

Paper:

3

Variant:

1

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1

Data can be at risk of being lost from computer systems. Describe the ways that data can be lost from computer systems. Backups are used to minimise the risk of data loss. Backup strategies are created for technicians to ensure that data can be recovered in the event of a disaster occurring. Describe three instructions to the technicians that should be included in a backup strategy.

14. Communications technology → 14.10. Disaster recovery management

5. eSecurity → 5.1. Personal data

Open

2

Evaluate the use of a proxy server for web access in a school.

14. Communications technology → 14.3. Network servers

14. Communications technology → 14.9. Network security

Open

3

A designer creates vector graphics for companies for use in their advertising. Explain why the designer uses the svg file format for storing the vector graphics. Describe the information that must be stored in a vector graphic file so that the image can be recreated when the file is opened.

19. Graphics creation → 19.2. Vector graphics

19. Graphics creation → 19.1. Common graphics skills

Open

4

Online tutorials are provided to help students learn. Discuss the advantages and disadvantages to students of using online tutorials.

12. IT in society → 12.5. Technology enhanced learning

Open

5

As computer systems become obsolete, they are discarded. This causes the problem of electronic waste (e-waste) to increase. Discuss the impact of the disposal of unwanted computer systems on the environment.

2. Hardware and software → 2.2. System software

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

2. Hardware and software → 2.1. Mainframe computers and supercomputers

Open

6

The owners of a retail store have access to databases of customer buying habits. They are going to carry out some data mining. Describe what is meant by data mining. Explain how the information obtained by data mining could be used by the owners of the retail store to increase profits.

12. IT in society → 12.2. Data mining

Open

7

Animations often show objects, for example figures moving about the screen. Describe how each of the following achieves the motion of a character in an animation. cell animation stop motion

20. Animation → 20.1. Animation

Open

8

JavaScript code can use comparison operators. Explain how each of the following comparison operators works in JavaScript when comparing the number 1 with the text “1”. the == operator the !== operator

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

Open

9

A new database management system (DBMS) is to be created for a health care centre to store patient records. Health care professionals will use the DBMS when treating patients. A design specification has to be written before the DBMS is created. Explain why a design specification is needed. Describe the contents of a design specification for the new DBMS.

16. System life cycle → 16.2. Analysis

10. Database and file concepts → 10.1. Creating a database

Open