plumiData Representation: CAIE A‑Level Computer Science questions
Every CAIE A-Level Computer Science exam question on 1.1 Data Representation, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
Paper
All papers
Exam
All years
Calculations
Q1(a)
The whole paper ↗Q1(b)
The whole paper ↗Q1(c)(i)
The whole paper ↗Q1(c)(ii)
The whole paper ↗Q1(d)
The whole paper ↗Q4(d)(i)
The whole paper ↗
All 7 questions on Data Representation, as a list
- June 2024, Paper 1, Q7 (3 marks): Complete the binary addition. Show your working. 1 0 0 1 1 1 1 0 0 1 1 0 0 0 0 1 + 0 0 0 1 1 0 0 1 [3]
- Specimen, Paper 1, Q1(a) (1 mark): State one difference between a kibibyte and a kilobyte. [1]
- Specimen, Paper 1, Q1(b) (1 mark): Give the number of bytes in a mebibyte. [1]
- Specimen, Paper 1, Q1(c)(i) (2 marks): Complete the following binary addition. Show your working. 1 0 0 1 1 0 1 0 + 1 1 1 1 0 1 1 1 [2]
- Specimen, Paper 1, Q1(c)(ii) (2 marks): Describe the error that occurred when you added the binary numbers in part (c)(i). [2]
- Specimen, Paper 1, Q1(d) (2 marks): Complete the binary subtraction. Show your working. 0 1 1 0 0 1 1 1 – 0 0 1 1 0 0 1 0 [2]
- Specimen, Paper 1, Q4(d)(i) (1 mark): Show the value of the binary number after another five cake tins have been filled. [1]
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