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Exam — The Hexadecimal Number System

Cambridge IGCSE 0478-style paper. Answer all questions in the spaces provided.

7 questions·28 marks total·~35 min

Click a number to jump:Parts answered: 0 / 12

Question 1 of 7

4 marks

Hexadecimal (base 16) is used throughout computing to represent binary values in a more compact form.

(a)

Statehow many distinct digits are used in hexadecimal.

[1]

(b)

Statehow many bits are represented by one hexadecimal digit.

[1]

(c)

Givetwo reasons why programmers prefer hexadecimal over binary when writing byte values by hand.

[2]