A Level Computer Science 9618, topic 1.3
Compression: past paper questions
14 Cambridge A Level Computer Science 9618 questions on Compression (1.3) from 14 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
- 14
- Papers
- 14
- Years
- 2023 to 2026
- Total marks
- 151
- Average per question
- 10.8 marks
- Largest question
- 17 marks
By type: Structured 14
How hard the questions are
- Recall0
- Apply0
- Analyse14
- 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
- explainAnalyse13 questions
set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence
- calculateApply5 questions
work out from given facts, figures or information
- completeApply5 questions
add information to an incomplete diagram or table
- describeApply5 questions
state the points of a topic / give characteristics and main features
- identifyRecall4 questions
name/select/recognise
- giveRecall3 questions
produce an answer from a given source or recall/memory
- justifyAnalyse3 questions
support a case with evidence/argument
- stateRecall2 questions
express in clear terms
- considerAnalyse1 question
review and respond to given information
- defineRecall1 question
give precise meaning
Where the questions come from
By year
- 20262
- 20253
- 20245
- 20234
By session
- May/June6
- Oct/Nov8
By paper
- Paper 114
Questions on this topic
Showing 14 of 14, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 1May/June 2026, paper 12Structured8 marks
Tick (✓) one box to identify the correct definition of a pixel in a bitmap image.
- Try this questionQuestion 7Oct/Nov 2025, paper 11Structured14 marks
Web browsers use Internet Protocol (IP) addresses. Complete the table by describing the following types of IP address.
- Try this questionQuestion 4Oct/Nov 2024, paper 11Structured17 marks
A student uses a laptop to write a program that is saved as a text file.
- Try this questionQuestion 1Oct/Nov 2023, paper 11Structured7 marks
Draw one line from each vector graphic term to its most appropriate description.
- Try this questionQuestion 3May/June 2026, paper 13Structured13 marks
An animation is a sequence of bitmap images with a sound recording played at the same time. The sound is recorded with a sampling resolution of 2 bytes. State what is meant by a sampling resolution of 2 bytes.
- Try this questionQuestion 6Oct/Nov 2025, paper 12Structured6 marks
A sound file is compressed by reducing the sampling rate. State whether this is lossless or lossy compression.
- Try this questionQuestion 7Oct/Nov 2024, paper 12Structured7 marks
A student takes a photograph of a science experiment. The photograph is saved as a bitmapped image. Define the following bitmap terms.
- Try this questionQuestion 6Oct/Nov 2023, paper 12Structured8 marks
A real-time video of a music concert needs to be streamed to subscribers. Tick (✓) one box to identify the most appropriate type of compression and justify your answer.
- Try this questionQuestion 2May/June 2025, paper 11Structured13 marks
Programmers in a software development company take part in live video conferences to discuss their work. The live video conferences take place using real-time bit streaming. The video is compressed before it is transmitted.
- Try this questionQuestion 6Oct/Nov 2024, paper 13Structured10 marks
A computer system stores text, images and sound. A character set is used to represent characters in a computer. Identify and describe one character set.
- Try this questionQuestion 5Oct/Nov 2023, paper 13Structured9 marks
A programmer uses an Integrated Development Environment (IDE) to develop a program that monitors air quality. Describe the following features of a typical IDE.
- Try this questionQuestion 2May/June 2024, paper 12Structured17 marks
A computer game is being designed that users will be able to play using a virtual reality (VR) headset. Complete the description of the principal operation of a VR headset.
- Try this questionQuestion 1May/June 2023, paper 11Structured13 marks
Images are being created to advertise holidays. Some of the images are bitmap images and some are vector graphics. Complete the table by defining the image terms.
- Try this questionQuestion 2May/June 2024, paper 13Structured9 marks
A photograph is stored as a bitmap image. The photograph has a resolution of 4000 pixels wide by 3000 pixels high. The bit depth is 4 bytes.