ocr
Tuesday 21 May 2024 – Afternoon
GCSE (9–1) Computer Science
J277/02 Computational thinking, algorithms and programming
Time allowed: 1 hour 30 minutes
Do not use:
a calculator
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
INFORMATION
• The total mark for this paper is 80.
• The marks for each question are shown in brackets [ ].
• This document has 20 pages.
ADVICE
• Read each question carefully before you start your answer.
• We advise you to spend approximately 50 minutes on Section A and
approximately 40 minutes on Section B.
Turn over
final
, 2
SECTION A
We advise you to spend approximately 50 minutes on Section A.
1 Tick (✓) one box in each row to identify the programming construct where each keyword is used.
Programming construct
Keyword
Selection Iteration
if
for
while
[3]
2 An algorithm decides if a number is odd or even.
An odd number divided by 2 will give the remainder 1.
The flowchart statements have been written for the algorithm, but the flowchart is incomplete.
Complete the flowchart.
Start
INPUT num
if num MOD 2 == 0 OUTPUT "Odd"
OUTPUT "Even"
End
[4]
final
, 3
3
(a) State what is meant by the term syntax error. Give one example of a syntax error in a program.
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