Exam (elaborations)
AQA GCSE COMPUTER SCIENCE Paper 1 Computational thinking and programming skills – C# QP 2023
- Course
- Institution
AQA GCSE COMPUTER SCIENCE Paper 1 Computational thinking and programming skills – C# QP 2023
[Show more]
Content preview
Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. For the multiple -choice questions, completely fill in the lozenge alongside the appropriate answer. CORRECT METHOD WRONG METHODS 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. AQA GCSE COMPUTER SCIENCE Paper 1 Computational thinking and programming skills – C# QP 2023 GCSE COMPUTER SCIENCE Paper 1 Computational thinking and programming skills – C# Friday 19 May 2023 Afternoon Time allowed: 2 hours Materials There are no additional materials required for this paper. You must not use a calculator. Instructions Use black ink or black ball-point pen. Use pencil only for drawing. Answer all questions. You must answer the questions in the spaces provided. 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. Questions that require a coded solution must be answered in C#. You should assume that all indexing in code starts at 0 unless stated otherwise. Information The total number of marks available for this paper is 90. Advice *Jun23 5251A01* IB/G/Jun23/E11 8525/1A For Examiner’s Use Question Mark 1 2–3 4–5 6–7 8–9 10–11 12 13–14 15 16 TOTAL 2 Do not write outside the *02* IB/G/Jun23/8525/1A 1 2 Answer all questions. box Figure 1 shows an algorithm, represented using pseudo -code, which assigns a different value to four variables. Figure 1 country 'United States of America' state 'California' city 'San Francisco' landmark 'Alcatraz Island' . Define the term algorithm . [2 marks] . The variable x is assigned a value using the statement: x LEN(state) Using Figure 1 , what is the value of x? Shade one lozenge. [1 mark] A 1 B 5 C 10 D 12 1 0 1 0 0 1 3 Do not write outside the *03* IB/G/Jun23/8525/1A 3 4 . What is the result of concatenating the contents of the variables city and landmark in Figure 1 ? Shade one lozenge. [1 mark] box A San Francisco Alcatraz Island B San Francisco,Alcatraz Island C San Francisco, Alcatraz Island D San FranciscoAlcatraz Island . The subroutine SUBSTRING extracts characters from a given string. For example, SUBSTRING(3, 5, 'Computing') would return put The variable y is assigned a value using the statement: y SUBSTRING(4, 7, landmark) Using Figure 1 , what is the value of y? Shade one lozenge. [1 mark] A Alca B Atra C land D traz Question 1 continues on the next page Turn over ► 1 0 1 0 4 Do not write outside the *04* IB/G/Jun23/8525/1A 5 Figure 1 has been included again below. Figure 1 country 'United States of America' state 'California' city 'San Francisco' landmark 'Alcatraz Island' . The subroutine POSITION finds the first position of a character in a string. For example, POSITION('Computing', 'p') would return 3 The variable z is assigned a value using the statement: z POSITION(landmark, 't') Using Figure 1 , what value is assigned to z? Shade one lozenge. [1 mark] box A –1 B 3 C 4 D 5 1 0 6The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Papersbyyamak. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
80202 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now