Computer Science

AQA-7516-1-COMPUTER SCIENCE FINAL MARK SCHEME PAPER 1-AS LEVEL-Jun2024-v1.0. 01 5 marks for AO2 (application) S1 S2 C R J X D1 D2 S "011101" "001100" "0" "" 0 5 "1" "0" "1" "1" 1 4 "0" "0" "0" "0" "01" 2 3 "1" "1" "0" "1" "001" 3 2 "1" "1" "1" "1" "1001" 4 1 "1" "0" "0" "1" "01001" 5 0 "0" "0" "1...

AQA-7517-2-COMPUTER SCIENCE QUESTION PAPER 2-A LEVEL-18Jun2024. 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] Page 2 of 40 COMPUTER SCIENCE *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 Page 3 of 40 COMPUTER S...

AQA-7517-1-COMPUTER SCIENCE QUESTION PAPER 1-A LEVEL-10Jun2024. 0 1 State three advantages of using subroutines. For each advantage, you must explain how the advantage is achieved. [3 marks] 0 2 Circular queues and linear queues are examples of data structures that can be implemented using a fixed-length array. 0 2 . 1 Explain why, when implemented using a fixed-length array, a circular queue is usually considered to be a better choice of data structure than a linear queue. [2 mark...

AQA-7516-2-COMPUTER SCIENCE QUESTION PAPER 2-AS LEVEL-21May2024. 0 1 . 1 Describe the set of real numbers. [1 mark] 15 3 The number 5 can be written as Shade two lozenges to indicate which of the following statements are true. [2 marks] 0 1 . 2 A 15 and 3 are not integers B 15 and 3 are irrational numbers C 5 is an irrational number D 5 is a natural number E 5 is a rational number 0 1 . 3 Shade one lozenge to indicate which of the symbols below represents the set of rational n...

AQA-7516-1-COMPUTER SCIENCE QUESTION PAPER 1-AS LEVEL-14May2024. 0 1 Figure 1 S1 ← "011101" S2 ← "001100" C ← "0" R ← "" FOR J = 0 TO 5 X ← 5 - J D1 ← S1[X] D2 ← S2[X] IF C = "0" THEN IF D1 = D2 THEN S ← "0" C ← D1 ELSE S ← "1" ENDIF ELSE IF D1 = D2 THEN S ← "1" C ← D1 ELSE S ← "0" ENDIF ENDIF R ← CONCATENATE(S, R) ENDFOR OUTPUT R The function...

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