A-level
COMPUTER SCIENCE
Paper 2
Tuesday 18 June 2024 Afternoon Time allowed: 2 hours 30 minutes
For Examiner’s Use
Question Mark
1
2
3
4
5
6
7
8
9
10
11
TOTAL
7517/2
, 2
Answer all questions.
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
, 3
Turn over for the next question
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
Turn over ►
, 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
COMPUTER SCIENCE
Paper 2
Tuesday 18 June 2024 Afternoon Time allowed: 2 hours 30 minutes
For Examiner’s Use
Question Mark
1
2
3
4
5
6
7
8
9
10
11
TOTAL
7517/2
, 2
Answer all questions.
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
, 3
Turn over for the next question
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
Turn over ►
, 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
