Exam (elaborations)
A-Level AQA 2024 Computer Science Paper 2
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A-Level AQA 2024 Computer Science Paper 2
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Revision303Please write clearly in block capitals.
Centre number Candidate number
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I declare this is my own work.
A-level
COMPUTER SCIENCE
Paper 2
Tuesday 18 June 2024 Afternoon Time allowed: 2 hours 30 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a calculator. Question Mark
1
Instructions
• Use black ink or black ball-point pen. 2
• Fill in the boxes at the top of this page. 3
• Answer all questions. 4
• You must answer the questions in the spaces provided. Do not write outside
the box around each page or on blank pages. 5
• If you need extra space for your answer(s), use the lined pages at the end of 6
this book. Write the question number against your answer(s). 7
• Do all rough work in this book. Cross through any work you do not want to
8
be marked.
9
Information 10
• The marks for questions are shown in brackets.
11
• The maximum mark for this paper is 100.
TOTAL
Advice
• In some questions you are required to indicate your answer by completely
shading a lozenge alongside the appropriate answer as shown.
• If you want to change your answer you must cross out your original answer as
shown.
• If you wish to return to an answer previously crossed out, ring the answer
you now wish to select as shown.
7517/2
,Revision303 2
Do not write
outside the
Answer all questions. box
0 1 Anti-virus software and user training are measures that can be used to reduce the
threat posed by viruses.
Describe four other measures that can be used to reduce the threat posed by
viruses.
[4 marks]
4
, Revision303 4
Do not write
outside the
0 2 . 1 A digital camera takes photographs that are 4000 pixels wide by 3000 pixels tall and box
can contain up to 16 777 216 different colours.
Calculate the size of one image in megabytes.
[2 marks]
Answer megabytes
0 2 . 2 How many images, taken using the camera referred to in Question 02.1, could be
stored on a 256 gigabyte memory card?
You should assume that all of the storage space on the memory card is available to
store image data.
Round your answer down to the nearest whole number.
[1 mark]
Answer
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