AS & A Level Information Technology (9626) — May–June 2025, Paper 13

Observation is one method of collecting direct data. Identify and describe two other ways of collecting direct data.

Describe the use of TLS/SSL.

Describe the reasoning used by an inference engine in an expert system.

Describe what is meant by the malware term trojan.

A student created a spreadsheet that requires users to enter numerical data. This data must be within a set range. Identify and justify three types of test data that can be used…

Give reasons why a person editing a video would use fading effects.

A teacher is writing a program to process test marks for a class. For marks above 70, the program will output "You have achieved a Distinction". For marks from 55 to 70, the…

Interpreters and device drivers are types of system software. Describe the functions of device drivers.

Describe how a microprocessor-controlled car park barrier system makes use of an induction loop.

A student is considering defragmenting their hard disk. Describe the benefits of defragmentation.

Evaluate the use of spreadsheets for financial modelling.

Define the following types of database key fields: (a) Composite key

The average (mean) of a set of 12 numbers is calculated by: - adding the numbers together to get a total - dividing the total by 12. A student has attempted to draw a flowchart of…