IGCSE Computer Science 0478, topic 2.3
Encryption: past paper questions
10 Cambridge IGCSE Computer Science 0478 questions on Encryption (2.3) from 10 papers, 2023 to 2026. Open the paper or try a question free.
Practising builds a set from this topic, free with an account. One question opens straight away, with no account.
- Questions
- 10
- Papers
- 10
- Years
- 2023 to 2026
- Total marks
- 102
- Average per question
- 10.2 marks
- Largest question
- 24 marks
By type: Structured 10
How hard the questions are
- Recall0
- Apply6
- Analyse4
- Not banded0
Derived from the command word Cambridge prints in each question, banded by a fixed table beside the syllabus's own definitions. A question printing no command word is unbanded: unknown, not middling.
Command words
- giveRecall5 questions
produce an answer from a given source or recall/memory
- explainAnalyse4 questions
set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence
- identifyRecall4 questions
name/select/recognise
- stateRecall4 questions
express in clear terms
- completeApply3 questions
- showApply3 questions
- describeApply2 questions
state the points of a topic / give characteristics and main features
- drawApply2 questions
- convertApply1 question
- useApply1 question
Where the questions come from
By year
- 20263
- 20252
- 20243
- 20232
By session
- May/June6
- Oct/Nov4
By paper
- Paper 110
Questions on this topic
Showing 10 of 10, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 6May/June 2026, paper 11Structured10 marks
Web pages need to be located and retrieved to be displayed on a device. Complete the paragraph about locating and retrieving web pages.
- Try this questionQuestion 2Oct/Nov 2025, paper 11Structured12 marks
An employee of a company sells houses. He sends images of the houses to his company. The employee compresses the image files using lossy compression before sending them.
- Try this questionQuestion 2Oct/Nov 2024, paper 13Structured24 marks
An employee has a report that they need to email to their employer. The employee compresses the report file before emailing it. State the effect the compression has on the report file.
- Try this questionQuestion 8Oct/Nov 2023, paper 12Structured6 marks
Draw and annotate a diagram that demonstrates the cyber security threat of data interception.
- Try this questionQuestion 4May/June 2026, paper 12Structured10 marks
An odd parity byte check is used to check for errors in data that is transmitted from a computer to a printer. Three bytes of data need to be transmitted. Give the correct parity bit that would be added to each byte of data for an odd parity byte check.
- Try this questionQuestion 6May/June 2025, paper 11Structured9 marks
Data can be encrypted using asymmetric encryption. Complete the paragraph about asymmetric encryption.
- Try this questionQuestion 7May/June 2024, paper 11Structured4 marks
Data is encrypted to keep it safe during transmission. Complete the paragraph about asymmetric encryption.
- Try this questionQuestion 4Oct/Nov 2023, paper 13Structured5 marks
An employee uses a web browser on their computer. Describe the main purpose of a web browser.
- Try this questionQuestion 2May/June 2026, paper 13Structured15 marks
Data is transmitted across a network. The bits of data are divided into sections that are each transmitted independently across the network to their destination. Identify the name given to these sections of data.
- Try this questionQuestion 2May/June 2024, paper 12Structured7 marks
Data can be transmitted from one device to another. Tick (✓) one box to show which of the terms is not a method for transmitting data.