0478.1.1.10 — Understand how and why hexadecimal is used • Areas within computer science that: past paper questions
Real questions on 0478.1.1.10 — understand how and why hexadecimal is used • areas within computer science that
The newest 12 of 12 written questions. Open one to see it on the real paper.
- 0478/12 · May/June 2026 · Q3a[1]
Tick (3) one box to show which statement is incorrect about why hexadecimal is used to display the error codes. A Hexadecimal is easier to debug than binary. B Hexadecimal is easier to read than binary. C Hexadecimal uses less screen space than binary.
See it on the paper → - 0478/13 · October/November 2024 · Q1c(ii)[3]
Give the binary number for the given hexadecimal numbers. 2D 091
See it on the paper → - 0478/11 · May/June 2024 · Q2a[1]
Tick one box to show which statement about the hexadecimal number system is incorrect.
See it on the paper → - 0478/12 · February/March 2024 · Q8a(ii)[1]
Give one benefit of using hexadecimal instead of binary to represent data.
See it on the paper → - 0478/12 · May/June 2023 · Q2a[4]
Convert the two binary numbers to hexadecimal. 10010011 .................................................................................................................................. 00001101 ...............................................................................................................................
See it on the paper → - 0478/13 · May/June 2023 · Q1f[1]
The hexadecimal number A4D needs to be stored. Calculate the least number of bits that can be used to store the hexadecimal number A4D.
See it on the paper → - 0478/12 · October/November 2022 · Q1f(iii)[4]
Show the hexadecimal value that represents each of the two 12-bit binary values.
See it on the paper → - 0478/13 · October/November 2022 · Q2b[3]
Binary values can be converted to hexadecimal values. Give the hexadecimal value for the 16‑bit binary value 0000100110101110
See it on the paper → - 0478/12 · May/June 2022 · Q2a[6]
Hexadecimal is used for Hypertext Markup Language (HTML) colour codes. An HTML colour code is: #2F15D6 Each pair of digits is stored as binary in an 8‑bit register. Give the 8‑bit binary value that would be stored for each pair of hexadecimal digits. 2F 15 D6
See it on the paper → - 0478/12 · May/June 2022 · Q2b[2]
HTML colour codes and Media Access Control (MAC) addresses are two examples of where hexadecimal is used in Computer Science. Give two other examples of where hexadecimal can be used in Computer Science.
See it on the paper → - 0478/12 · February/March 2022 · Q1c[1]
Convert the hexadecimal number 1A to denary.
See it on the paper → - 0478/13 · October/November 2020 · Q3b[3]
Convert the 12-bit binary number into hexadecimal. 1 1 0 0 0 1 0 0 0 0 0 0
See it on the paper →
What examiners said
Most candidates were able to convert the binary numbers to hexadecimal. If a value converts to 0, candidates should note that they should still give this value in their response.
— Examiner report, May/June 2023, 0478/12 Q2(a) (Cambridge)
Some candidates were able to provide the correct number of bits. Some candidates incorrectly gave the binary number for the hexadecimal number, rather than the number of bits needed.
— Examiner report, May/June 2023, 0478/13 Q1(f) (Cambridge)
Many candidates were able to provide a correct response. Some candidates converted 15 as though it were a denary value, rather than a hexadecimal value.
— Examiner report, May/June 2022, 0478/12 Q2(a) (Cambridge)
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