IGCSE Computer Science 0478, topic 2.2
Methods of error detection: past paper questions
13 Cambridge IGCSE Computer Science 0478 questions on Methods of error detection (2.2) from 13 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
- 13
- Papers
- 13
- Years
- 2023 to 2026
- Total marks
- 159
- Average per question
- 12.2 marks
- Largest question
- 22 marks
By type: Structured 13
How hard the questions are
- Recall0
- Apply3
- Analyse10
- 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
- explainAnalyse10 questions
set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence
- giveRecall9 questions
produce an answer from a given source or recall/memory
- describeApply5 questions
state the points of a topic / give characteristics and main features
- identifyRecall5 questions
name/select/recognise
- completeApply3 questions
- stateRecall3 questions
express in clear terms
- useApply3 questions
- showApply2 questions
- drawApply1 question
Where the questions come from
By year
- 20263
- 20255
- 20243
- 20232
By session
- May/June8
- Oct/Nov5
By paper
- Paper 112
- Paper 21
Questions on this topic
Showing 13 of 13, spread across the years. Open one to write your answer and have it marked.
- 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 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 5Oct/Nov 2024, paper 12Structured12 marks
A barcode scanning system uses a check digit to check for errors in data on input. Explain how the barcode scanning system operates to check for errors.
- Try this questionQuestion 4Oct/Nov 2023, paper 11Structured7 marks
Data is transmitted between a computer and a printer. The data is transmitted one bit at a time down a single wire. The computer can transmit data to the printer and the printer can transmit data to the computer, using the same connection.
- 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 7Oct/Nov 2025, paper 12Structured16 marks
A house has a smart speaker that can take voice commands as input. A person in the house can tell the smart speaker to play music or audio books. The smart speaker cannot be described as a robot.
- Try this questionQuestion 9May/June 2024, paper 11Structured20 marks
A company owner has installed a new network. Data is correct before it is transmitted across the network. The company owner is concerned that data might have errors after transmission.
- Try this questionQuestion 5Oct/Nov 2023, paper 13Structured7 marks
Errors can occur when data is transmitted. Give one reason an error may occur when data is transmitted.
- Try this questionQuestion 3May/June 2026, paper 23Structured11 marks
Identify the type of test data in each description.
- Try this questionQuestion 4May/June 2025, paper 11Structured12 marks
A restaurant has an electronic ordering system. The system allows customers to select the food they want to order. The data for the order is transmitted across their network to a computer in the restaurant kitchen.
- Try this questionQuestion 6May/June 2024, paper 12Structured5 marks
The table contains statements about error detection methods. Complete the table by giving the correct error detection method for each statement.
- Try this questionQuestion 3May/June 2025, paper 12Structured22 marks
A programmer writes a program to store and sort all the data for the books in her home library. The programmer uses a high-level language to write the program.
- Try this questionQuestion 7May/June 2025, paper 13Structured10 marks
Data is sent from an employee’s computer to a server. The data is correct when it is sent, but an error is detected when the data is received. Describe how an error can occur in the data during transmission.