Official June 2026 AQA A-LEVEL COMPUTER SCIENCE 7517/2 Paper 2 Merged Question Paper + Mark Scheme (76pages)

Official June 2026 AQA A-LEVEL COMPUTER SCIENCE 7517/2 Paper 2 Merged Question Paper + Mark Scheme Ace your Mocks!!! *jun247517201* IB/G/Jun24/G4003/E12 7517/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 11 TOTAL Tuesday 18 June 2026 Afternoon Time allowed: 2 hours 30 minutes Materials For this paper you must have: • a calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s). • Do all rough work in this book. Cross through any work you do not want to be marked. Information • The marks for questions are shown in brackets. • The maximum mark for this paper is 100. 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. Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. A-level COMPUTER SCIENCE Paper 2 2 *02* IB/G/Jun24/7517/2 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 3 *03* Turn over ► IB/G/Jun24/7517/2 Do not write outside the Turn over for the next question box DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED 4 *04* IB/G/Jun24/7517/2 Do not write outside the box 0 2 . 1 A digital camera takes photographs that are 4000 pixels wide by 3000 pixels tall and 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]