Cambridge IGCSE · 0478 · Paper 2 · Algorithms, programming & logic
Computer Science 0478/22 Feb/March 2019 past paper
Cambridge IGCSE Computer Science (0478) Paper 2 (Algorithms, programming & logic), variant 2, Feb/March 2019: the question paper and its official mark scheme, 6 questions worth 50 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 6
- Marks
- 50
- Grade A from
- 33
File names: 0478_m19_qp_22 · 0478_m19_ms_22
Grade thresholds for 0478/22 Feb/March 2019
The minimum raw marks Cambridge set for each grade on this component (out of 50). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|
| 33 | 27 | 21 | 16 | 12 | 8 | 4 |
Topics in this paper
Which syllabus chapters 0478/22 Feb/March 2019 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Programming | 4 | 35 |
| Algorithm Design and Problem-Solving | 1 | 11 |
| Databases | 1 | 4 |
Questions in 0478/22 Feb/March 2019
- Question 1
(a) All variables, constants and other identifiers should have meaningful names. State one constant and one variable that you could have used for Task 1. Give the value that would be assigned to the constant. Give the data type for …
- Question 2
(a) An algorithm has been written in pseudocode to input 50 numbers and total only the positive numbers. Count ← 1 Total ← Count REPEAT INPUT Number IF Number <> 0 THEN Total ← Total + Count ENDIF Count ← …
- Question 3
This flowchart inputs the type of passenger for a survey: S for Senior, A for Adult, C for Child. All other values are ignored, apart from Z which ends the process. START END Senior 0 Adult 0 Child 0 Senior …
- Question 4
For each of the four groups of statements in the table, place a tick in the correct column to show whether it is an example of Selection or Repetition. Statements Selection Repetition FOR …
- Question 5
A programmer restricts input values to less than 90 and greater than 60. (a) State whether this is called validation or verification. Name the check that needs to be used. (b) State three different types of test data the programmer …
- Question 6
A database table, BIKETYRES, is used to keep a record of tyres for sale in a cycle shop. Tyres are categorised by width and diameter in millimetres, whether they have an inner tube and the type of terrain for which …