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2023

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

Computer Science 9618/21 Oct/Nov 2023 past paper

Cambridge A Level Computer Science (9618) Paper 2 (Problem-solving & programming), variant 1, Oct/Nov 2023: 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
46
Open the question paperMark scheme

File names: 9618_w23_qp_21 · 9618_w23_ms_21

Grade thresholds for 9618/21 Oct/Nov 2023

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.

ABCDE
4639322518

Topics in this paper

Which syllabus chapters 9618/21 Oct/Nov 2023 tested, by marks. Each chapter links to every past-paper question on it.

ChapterQuestionsMarks
Programming339
Data Types and Structures324
Algorithm Design and Problem-solving212

Questions in 9618/21 Oct/Nov 2023

  1. Question 1Programming · 11 marks

    The following pseudocode represents part of the algorithm for a program: CASE OF ThisValue …

  2. Question 2Algorithm Design and Problem-solving · 7 marks

    (a) An algorithm is expressed as follows: • input 100 numbers, one at a time • keep a total of all numbers input that have a value between 30 and 70 inclusive and output this total after the last number …

  3. Question 3Data Types and Structures · 8 marks

    The diagram represents an Abstract Data Type (ADT). The operation of this stack may be summarised as follows: • The TopOfStack pointer points to the last item added to the stack. • The BottomOfStack pointer points to the first item …

  4. Question 4Data Types and Structures · 9 marks

    A global array is declared in pseudocode as follows: DECLARE Data : ARRAY[1:150] OF STRING A function TooMany() will: 1. take two parameters: • a string (the search string) • an integer (the maximum value) 2. count the number of …

  5. Question 5Data Types and Structures · 7 marks

    An algorithm is designed to find the smallest numeric value from an input sequence and count how many numeric values have been input. An example of an input sequence is: 23, AB56, 17, 23ZW, 4, 10, END Numeric input values …

  6. Question 6Programming · 9 marks

    The pseudocode OUTPUT command starts each output on a new line. (a) A new procedure MyOutput() will take a string and a Boolean parameter. MyOutput() may be called repeatedly and will use concatenation to build a string using a global …

  7. Question 7Algorithm Design and Problem-solving · 5 marks

    An algorithm is represented by a state-transition diagram. The table shows the inputs, outputs and states for the algorithm: Current state Input Output Next state …

  8. Question 8Programming · 19 marks

    A class of students are developing a program to send data between computers. Many computers are connected together to form a wired network. Serial ports are used to connect one computer to another. Each computer: • is assigned a unique …

Other Computer Science papers from Oct/Nov 2023

Questions students ask

Where can I get the 9618/21 Oct/Nov 2023 mark scheme?
Open the mark scheme above - it is the official Cambridge scheme for this exact paper (9618_w23_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 2023?
46 marks out of 75, a C needed 32.
Which topics came up in 9618/21 Oct/Nov 2023?
Mostly Programming, Data Types and Structures, Algorithm Design and Problem-solving. The full list is in the table above.
Do I need an account to open 9618/21 Oct/Nov 2023?
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.