0478.1.1.03 — (a) Understand the denary, binary and • Denary is a base 10 system: past paper questions
Real questions on 0478.1.1.03 — (a) understand the denary, binary and • denary is a base 10 system
The newest 20 of 38 written questions. Open one to see it on the real paper.
- 0478/22 · October/November 2025 · Q1[1]
The result of the arithmetic operation 4 ^ 2 is A 2 B 8 C 16 Tick (✓) one box to complete this sentence.
See it on the paper → - 0478/22 · October/November 2025 · Q3[6]
A program is written that will only accept values between –99.99 and +99.99, inclusive. The program is to be tested. The table, when completed, shows appropriate test data that matches the type of test data and purpose of the test data. Complete the table by inserting the missing information. Type of test data Purpose...
See it on the paper → - 0478/22 · October/November 2025 · Q4a[1]
A length check is a type of validation check. State the purpose of a length check.
See it on the paper → - 0478/11 · May/June 2025 · Q2b(i)[2]
Two ticket numbers are 14B and 97A. Convert the two ticket numbers from hexadecimal to binary. 14B 97A
See it on the paper → - 0478/11 · May/June 2025 · Q2b(ii)[2]
Give two reasons why the ticket number is displayed as hexadecimal instead of binary.
See it on the paper → - 0478/11 · May/June 2025 · Q2c(i)[2]
Convert the two ticket numbers from hexadecimal to denary. 02C
See it on the paper → - 0478/13 · May/June 2025 · Q1c(i)[2]
Convert the two binary numbers to denary numbers. 00011001 10110100
See it on the paper → - 0478/12 · February/March 2025 · Q1a[7]
Complete the sentences about number systems. Use the items from the list. Some of the items in the list will not be used. You should only use an item once. A B C D E F G H W X Y Z 0 1 2 4 8 10 16 127 128 255 256 The binary number system is base . The smallest denary number that can be represented as an 8-bit binary num...
See it on the paper → - 0478/11 · May/June 2024 · Q2b[3]
Convert the three denary numbers to hexadecimal.
See it on the paper → - 0478/13 · May/June 2024 · Q3a(i)[3]
Convert the address to binary.
See it on the paper → - 0478/13 · May/June 2024 · Q3a(ii)[1]
Convert the address to denary.
See it on the paper → - 0478/13 · May/June 2024 · Q3b(i)[3]
Convert the binary number to hexadecimal.
See it on the paper → - 0478/13 · May/June 2024 · Q3b(ii)[1]
Convert the binary number to denary.
See it on the paper → - 0478/11 · October/November 2023 · Q2a[2]
The cost of parking is stored in two 8-bit binary registers. For the parking cost of $10.50: register 1 stores the denary value 10 as binary; register 2 stores the denary value 50 as binary. Give the parking cost that would be displayed on the payment machine when the registers store: • register 1: 00010001 • register...
See it on the paper → - 0478/11 · October/November 2023 · Q2b[2]
The parking cost of $14.98 is displayed on the payment machine. Give the 8-bit binary numbers that are stored in the registers to display the parking cost.
See it on the paper → - 0478/11 · October/November 2023 · Q2c[4]
Each ticket has a 4-digit hexadecimal ticket number that is stored as binary. The binary number 1010000000111101 is stored for a customer’s ticket number. Give the hexadecimal ticket number that would be displayed on this customer’s ticket.
See it on the paper → - 0478/13 · October/November 2023 · Q1c(i)[1]
State how many bits are equal to a byte.
See it on the paper → - 0478/13 · October/November 2023 · Q2b[3]
Convert the denary numbers 14, 59 and 234 to binary. 234
See it on the paper → - 0478/13 · October/November 2023 · Q2c[3]
Convert the denary numbers 9, 26 and 65 to hexadecimal.
See it on the paper → - 0478/11 · May/June 2023 · Q1a[1]
It is a base 2 system
See it on the paper →
What examiners said
Many candidates were able to correctly convert the two hexadecimal numbers to binary. Some candidates tried to convert the value 14 to binary, instead of converting the values 1 and 4 individually.
— Examiner report, May/June 2025, 0478/11 Q2(b)(i) (Cambridge)
Many candidates were able to give two appropriate reasons. Some candidates also referred to it saving ink in printing the ticket. This was also accepted as an appropriate reason.
— Examiner report, May/June 2025, 0478/11 Q2(b)(ii) (Cambridge)
Many candidates were able to convert the hexadecimal numbers to denary. Some candidates converted the values to binary instead of denary.
— Examiner report, May/June 2025, 0478/11 Q2(c)(i) (Cambridge)
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