Computer Science for IGCSE & O level - Programming (Section 4)
1
What is the value of `x` after the code: `x = 5; x += 3;`?
إجابة
(D)
8
2
What is the output when using the code: `print "Computer".Substring(3,4)`?
إجابة
(D)
mpute
3
What is a disadvantage of using global variables extensively?
إجابة
(B)
They can be easily accessed by any part of the program, leading to potential unintended modifications.
4
Which programming concept allows a program to make decisions?
إجابة
(B)
Selection
5
Which of the following features are parts of an algorithm?
إجابة
A
B
C
D
6
What is the primary goal of program documentation?
إجابة
(B)
To make the code more readable.
7
What does the acronym 'GUI' stand for?
إجابة
(B)
Graphical User Interface
8
Which of the following is a characteristic of a good programming practice?
إجابة
(C)
Giving descriptive names to variables
9
What will `print("Python"[2:])` output?
إجابة
(C)
thon
10
In a pseudo-code program, what is the purpose of a PROCEDURE?
إجابة
(B)
To group a set of statements to perform a specific task.
11
What data structure is described as containing several elements of the same data type, where each element can be accessed using the same identifier name?
إجابة
(B)
Array
12
What is the function of `OUTPUT` in programming?
إجابة
(B)
To display data to the user.
13
Which of the following is NOT a common string method?
إجابة
(C)
Append
14
In the context of programming, what is a 'bug'?
إجابة
(B)
An error in the code.
15
What does the algorithm need in order to do output?
إجابة
(B)
Input
16
Which data type would be most appropriate for storing the number of students in a class?
إجابة
(D)
INTEGER
17
Which is the correct syntax to call a procedure named 'CalculateMarks'?
إجابة
(B)
CALL CalculateMarks
18
What type of statement allows a program to choose between different actions based on a condition?
إجابة
(B)
Selection Statement
19
What does 'scope' refer to in relation to variables?
إجابة
(B)
Where a variable is accessible within the code.
20
Which programming paradigm is likely being used based on the presented examples?
إجابة
(C)
Procedural Programming
21
What is the purpose of the `+=` operator in Python (or similar operators in other languages)?
إجابة
(C)
To add a value to a variable and assign the result to the same variable.
22
What does the term 'sequence' refer to in the context of an algorithm?
إجابة
(B)
The order in which steps are executed.
23
What is the role of a parameter within a function or procedure?
إجابة
(C)
To receive data that is passed into the function or procedure.
24
What is the role of the `DIV` library routine?
إجابة
(B)
To return the quotient (whole number) of a division.
25
Why is it beneficial to use descriptive identifier names?
إجابة
(C)
It improves the code's readability and maintainability.
26
In the context of programming, what does 'modularity' refer to?
إجابة
(C)
Breaking down a program into smaller, self-contained, and reusable modules.
27
What type of loop is used to repeat a block of code as long as a condition is true?
إجابة
(B)
WHILE loop
28
Which string function is typically used to locate a specified character or substring within a string?
إجابة
(C)
Index or Find
29
What does the term 'index' refer to when discussing arrays?
إجابة
(C)
The location of an element within the array.
30
What is the purpose of debugging in programming?
إجابة
(B)
To test and fix errors in the code.
31
In the provided pseudo-code snippets, what does the constant `NumberSubjects` likely represent?
إجابة
(C)
The total number of subjects a student is taking.
32
What is the correct data type for a value that can store decimal numbers?
إجابة
(D)
Double/Real
33
In the context of the program, what does the constant `NumberSubjects` likely represent?
إجابة
(B)
The number of subjects a student takes.
34
In the provided context of student mark calculations, what is the likely purpose of the variable `studentTotal`?
إجابة
(B)
The total marks obtained by a student.
35
What is the main role of a programming language's syntax?
إجابة
(A)
To define the rules for writing valid statements.
36
What data type is typically used to store a whole number?
إجابة
(B)
Integer
37
What does the assignment operator do?
إجابة
(C)
Assigns a value to a variable
38
What is the term for the process of repeating a set of instructions in a program?
إجابة
(B)
Iteration
39
Which of the following is an example of a logical operator?
إجابة
(C)
AND
40
Which of the following best describes an 'algorithm'?
إجابة
(B)
A set of instructions for a specific task.
41
Which one is a comment feature in the Python language?
إجابة
(C)
'# '
42
What is the purpose of an 'IF' statement in programming?
إجابة
(B)
To make decisions based on a condition.
43
What does the acronym "GUI" stand for?
إجابة
(A)
Graphical User Interface
44
In pseudo code, what is the purpose of the keyword "OUTPUT"?
إجابة
(B)
To display information to the user.
45
In the provided pseudocode, what does the value 999 represent?
إجابة
(C)
A delimiter to finish the loop
46
What is the purpose of indentation in Python?
إجابة
(D)
All of the above
47
What is the range of values for a boolean data type?
إجابة
(B)
True or False
48
What is the output of the code: `print(type(True))`
إجابة
(C)
49
What does the term 'selection' refer to in programming?
إجابة
(C)
Choosing different paths of code execution.
50
If a function needs to return multiple values, what is one common way to achieve this in programming?
إجابة
(C)
Return a single array or object containing the multiple values.
