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