Cambridge A Level · 9618 · Paper 2 · Problem-solving & programming

Computer Science 9618/21 Oct/Nov 2022 past paper

Cambridge A Level Computer Science (9618) Paper 2 (Problem-solving & programming), variant 1, Oct/Nov 2022: the question paper and its official mark scheme, 8 questions worth 75 marks, with the grade thresholds. Free to open, no account needed.

Questions: 8
Marks: 75
Grade A from: 41

Open the question paper Mark scheme

File names: 9618_w22_qp_21 · 9618_w22_ms_21

Grade thresholds for 9618/21 Oct/Nov 2022

The minimum raw marks Cambridge set for each grade on this component (out of 75). Thresholds change every session and variant, so always compare your score with the paper you actually sat.

A	B	C	D	E
41	33	26	20	14

Topics in this paper

Which syllabus chapters 9618/21 Oct/Nov 2022 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Data Types and Structures	5	46
Programming	1	19
Algorithm Design and Problem-solving	2	10

Questions in 9618/21 Oct/Nov 2022

Question 1Data Types and Structures · 12 marks
(a) An algorithm includes a number of complex calculations. A programmer is writing a program to implement the algorithm and decides to use library routines to provide part of the solution. State three possible benefits of using library routines in …
Question 2Algorithm Design and Problem-solving · 5 marks
A system is being developed to help manage a car hire business. A customer may hire a car for a number of days. An abstract model needs to be produced. (a) Explain the process of abstraction and state four items …
Question 3Algorithm Design and Problem-solving · 5 marks
A 1D array Data of type integer contains 200 elements. Each element has a unique value. An algorithm is required to search for the largest value and output it. Describe the steps that the algorithm should perform. Do not include …
Question 4Data Types and Structures · 12 marks
(a) The following diagram shows an Abstract Data Type (ADT) representation of an ordered linked list. The data item stored in each node is a single character. The data will be accessed in alphabetical order. The symbol Ø represents a …
Question 5Data Types and Structures · 5 marks
A program uses two 1D arrays of type integer. Array1 contains 600 elements and Array2 contains 200 elements. Array1 contains sample values read from a sensor. The sensor always takes three consecutive samples and all of these values are stored …
Question 6Data Types and Structures · 7 marks
The following pseudocode algorithm attempts to check whether a string is a valid email address. FUNCTION IsValid(InString : STRING) RETURNS BOOLEAN DECLARE Index, Dots, Ats, Others : INTEGER DECLARE NextChar : CHAR DECLARE Valid : BOOLEAN Index ← 1 Dots …
Question 7Data Types and Structures · 10 marks
A simple arithmetic expression is stored as a string in the format: <Value1><Operator><Value2> An operator character is one of the following: …
Question 8Programming · 19 marks
A teacher is designing a program to perform simple syntax checks on programs written by students. Student programs are submitted as text files, which are known as project files. A project file may contain blank lines. The teacher has defined …

Other Computer Science papers from Oct/Nov 2022

Questions students ask

Where can I get the 9618/21 Oct/Nov 2022 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (9618_w22_ms_21), and on a wide screen it sits beside the question you are reading.

What was the grade threshold for an A in 9618/21 Oct/Nov 2022?

41 marks out of 75, a C needed 26.

Which topics came up in 9618/21 Oct/Nov 2022?

Mostly Data Types and Structures, Programming, Algorithm Design and Problem-solving. The full list is in the table above.

Do I need an account to open 9618/21 Oct/Nov 2022?

No. Every paper opens for free without signing in. A free account also saves your pen marks and records your score against the grade thresholds.