Computer Science for IGCSE & O level - Programming (Section 9)
1
What do parameters do in functions or procedures?
Хариулт
(B)
They receive data passed into the function or procedure.
2
In the context of file handling, what does 'WRITE' typically signify?
Хариулт
(D)
Write data into a file.
3
What is the primary purpose of storing data in a file?
Хариулт
(B)
To store data persistently for later use.
4
Which statement is used to select one option out of multiple options?
Хариулт
(C)
CASE statement
5
What is the name for a named storage location in a computer's memory?
Хариулт
(B)
Variable
6
What is the result of this comparison: `5 <= 5`?
Хариулт
(A)
True
7
What is a common characteristic of a well-designed algorithm?
Хариулт
(C)
It should be efficient and solve the problem correctly.
8
What is the benefit of using comments in code?
Хариулт
A
B
9
What is the purpose of the `ELSE` statement in an `IF` statement?
Хариулт
(B)
To specify the actions to be taken if the `IF` condition is false.
10
Which of the following are important aspects when writing a file?
Хариулт
A
B
C
11
What is the primary function of a loop in programming?
Хариулт
(B)
To execute a block of code repeatedly.
12
If you wanted to store the ages of students and their corresponding grades in an organized format, what type of structure would you use?
Хариулт
(C)
A two-dimensional array.
13
If `Value1 = MOD(20, 3)`, what is the value of `Value1`?
Хариулт
(D)
2
14
What is the result of the following operation: 10 % 3?
Хариулт
(A)
1
15
What is the primary difference between an `INTEGER` and a `REAL` data type?
Хариулт
(B)
INTEGER stores whole numbers, REAL stores numbers with decimal points.
16
In the context of programming, what is a variable?
Хариулт
(B)
A named data store that holds a value that can change.
17
Which statement is used in programming to execute a block of code multiple times?
Хариулт
(D)
FOR, WHILE
18
What is the purpose of a 'loop' in programming?
Хариулт
(B)
To execute a block of code repeatedly.
19
What is the role of comments in a program?
Хариулт
(C)
To explain the code to humans.
20
Which data type is most suitable for storing True/False values?
Хариулт
(C)
Boolean
21
What is a step-by-step set of instructions used for solving a problem?
Хариулт
(C)
An algorithm.
22
What does the term "iteration" primarily refer to in programming?
Хариулт
(B)
The repetition of a set of instructions
23
Why is it important to use clear and meaningful identifiers (variable names, function names, etc.)?
Хариулт
(C)
To improve the code's readability and maintainability.
24
Which of the following statements represents an input operation?
Хариулт
(B)
name = input()
25
What is the purpose of a 'comment' in a program?
Хариулт
(B)
To provide an explanation or description of the code.
26
Which of the following best describes the purpose of comments in code?
Хариулт
(C)
To provide documentation for the code.
27
Which of the following is a characteristic of high-level programming languages?
Хариулт
B
C
28
What does an IDE primarily offer to programmers?
Хариулт
A
B
C
29
What would be an appropriate data type to store a person's name?
Хариулт
(C)
String
30
Which statement represents a logical decision in a program?
Хариулт
(C)
IF x > 10 THEN
31
Which of these elements can be found in a procedure definition?
Хариулт
A
B
D
32
In the context of arrays, what does the term "index" refer to?
Хариулт
(C)
The position of each element within the array.
33
What keyword is commonly used to start a comment in Python, based on the provided examples?
Хариулт
(C)
#
34
Which string method is used to find the number of characters in a string?
Хариулт
(A)
Length
35
What is the role of the `NumOfSubjects` constant in the code?
Хариулт
(C)
To set a fixed value for a number of subjects.
36
What is the process of finding and fixing errors in a program called?
Хариулт
(B)
Debugging
37
What are the key components of a standard programming environment?
Хариулт
(A)
Text editor, compiler, and debugger
38
If the 'age' input is 20, what output will the following code produce?
```
IF age >= 17
THEN
Print "You are an adult"
ELSE
Print "You are a child"
ENDIF
```
Хариулт
(B)
You are an adult
39
What does the MOD function calculate in programming?
Хариулт
(C)
The remainder of a division.
40
What is a key benefit of using nested statements (e.g., an IF statement inside another IF statement)?
Хариулт
(C)
It allows for more complex and detailed logic.
41
What does the following Python code do? `myFile = open('myText.txt', 'r')`
Хариулт
(B)
Opens a file named 'myText.txt' for reading.
42
Which string method can be used to find the location of a certain character in a string?
Хариулт
(C)
Find
43
Which is true about nesting selection statements?
Хариулт
(B)
It can enhance code's modularity and structure.
44
What is the purpose of the 'length' string function?
Хариулт
(B)
To return the number of characters in a string.
45
What is a key characteristic of a procedure, as described in the provided text?
Хариулт
(C)
It is a set of programming statements grouped together under a single name.
46
What is a 'subroutine' also known as?
Хариулт
(C)
Function or Procedure
47
What is the objective of the 'Worked example' at the beginning of the document?
Хариулт
(B)
To calculate and output statistics for a class of students.
48
Which character is typically used as the multiplication operator?
Хариулт
(B)
*
49
In the pseudocode example for writing to a file, which command is used to write a line of text?
