AS & A Level Information Technology (9626) — May–June 2023, Paper 12

A student has been asked by her sociology teacher to produce a study of the average number of family members in the local area. Give reasons why using an Electoral Register as an…

Explain what is meant by symmetric encryption.

Many credit card purchases use online processing, whereas customer bills tend to be produced using batch processing. Describe the differences between online processing and batch…

Some individuals post personal data on social media or in emails. Discuss why personal data needs to be kept confidential.

A printer driver is a type of device driver. Explain, using a printer driver as an example, what is meant by a device driver and why it is needed.

Sensors are used in monitoring and control to measure physical variables. Describe these sensors. For each sensor, explain how it could be used in a control system. Each system…

Explain why there can be a digital divide between different socioeconomic groups.

Peter wants to create a database containing the details of all the books he owns and the shops he bought them from. Mary suggests that he should create a relational database.…

A doctor uses an expert system to help the doctor diagnose the illnesses of her patients. Explain how an expert system is used to help the doctor produce the diagnosis of an…

Gustav has started to write an algorithm using pseudocode. It will input 6 numbers, all less than 1000, and output the smallest value. Complete the algorithm using pseudocode.…