Computer Science 9618/33 May/June 2025 past paper

Topics in this paper

Which syllabus chapters 9618/33 May/June 2025 tested, by marks. Each chapter links to every past-paper question on it.

Questions in 9618/33 May/June 2025

1. Question 1Data Types and Structures · 6 marks

   A programmer is writing a program to manage a video library. They require a user-defined data type. (a) Write pseudocode statements to declare the composite data type VideoLibrary to hold data about each video in the collection. This data includes: …

2. Question 2Data Representation · 6 marks

   Numbers are stored in a computer using binary floating-point representation with: • 8 bits for the mantissa • 8 bits for the exponent • two’s complement form for both the mantissa and the exponent. (a) Give the largest normalised positive …

3. Question 3Hardware and Virtual Machines · 8 marks

   This truth table represents a logic circuit. INPUT OUTPUT …

4. Question 4Communication and internet technologies · 9 marks

   (a) The Internet layer and Link layer are two layers of the TCP/IP protocol suite. Describe the purpose of the Internet layer and the purpose of the Link layer. Purpose of Internet layer Purpose of Link layer (b) Describe the …

5. Question 5Further Programming · 4 marks

   Complete the table by filling in the missing object-oriented programming (OOP) terms and descriptions. OOP term Description A method that accesses the value of a property. A method that changes the value of a property. Object Method

6. Question 6System Software (A Level) · 6 marks

   The management and scheduling of processes are tasks carried out by an operating system. (a) Describe one reason why scheduling is necessary in process management. (b) Explain the function of the round robin scheduling routine and give a benefit of …

7. Question 7Security (A Level) · 4 marks

   Secure Socket Layer (SSL) and Transport Layer Security (TLS) are two protocols. Explain how SSL/TLS is used when client-server communication is initiated.

8. Question 8System Software (A Level) · 4 marks

   Explain the process of syntax analysis during program compilation.

9. Question 9System Software (A Level) · 6 marks

   Several syntax diagrams are shown. …

10. Question 10Artificial Intelligence (AI) · 6 marks

    (a) State the purpose of the A* and Dijkstra’s algorithms. (b) Outline the difference between the A* and Dijkstra’s algorithms. (c) Explain how unsupervised learning takes place in machine learning.

11. Question 11Data Types and Structures · 5 marks

    The pseudocode algorithm below allows a user to input a new stock item. The random file is searched for the next empty location in the file and the new item is inserted there. A suitable message is displayed if the …

12. Question 12Data Types and Structures · 7 marks

    (a) An array is an Abstract Data Type (ADT). Identify two other ADTs. …

13. Question 13Algorithm Design and Problem-solving · 114 marks

    The recursive procedure Delete() is defined as follows: PROCEDURE Delete(Index, Target) IF Numbers[Index] > 0 THEN IF Numbers[Index] >= Target THEN Numbers[Index] ← Numbers[Index + 1] ENDIF Index ← Index + 1 CALL Delete(Index, Target) ENDIF ENDPROCEDURE An array Numbers …

Other Computer Science papers from May/June 2025

• 9618/11 Theory fundamentals
• 9618/12 Theory fundamentals
• 9618/13 Theory fundamentals
• 9618/21 Problem-solving & programming
• 9618/22 Problem-solving & programming
• 9618/23 Problem-solving & programming
• 9618/31 Advanced theory
• 9618/32 Advanced theory
• 9618/41 Practical programming
• 9618/42 Practical programming
• 9618/43 Practical programming