Computer Science for IGCSE & O level - Programming (Section 14)
1
What type of programming statements allows the program to execute different blocks of code based on certain conditions?
إجابة
(C)
Selection statements
2
Which of the following is NOT a characteristic of a function in the context of the given material?
إجابة
(D)
A function can't have parameters.
3
Which of the following is NOT a string handling method?
إجابة
(D)
Multiply
4
What is the purpose of the line: `ClassHigh = 0` in the beginning of the provided code example?
إجابة
(A)
To initialize the variable ClassHigh.
5
Which of the following are examples of standard library routines, based on the text?
إجابة
A
B
6
What is a characteristic of a pre-condition loop?
إجابة
(C)
The condition is checked *before* each iteration.
7
If the function is defined with parameters, what should the call match?
إجابة
(A)
Argument should match parameters.
8
Which of the following data types can store true or false values?
إجابة
(C)
Boolean
9
What does the pseudocode example `INPUT myText;` do?
إجابة
(C)
Takes input from the user and stores it in a variable called 'myText'.
10
Based on the image, arrays can be:
إجابة
A
B
11
How do you call a procedure or function with parameters?
إجابة
A
B
C
12
Which of these are important features when writing a file?
إجابة
A
C
D
13
What are the main components usually found in a "For" loop structure?
إجابة
A
B
C
14
What does the acronym 'IDE' stand for?
إجابة
(B)
Integrated Development Environment
15
What should you consider when a procedure has parameters?
إجابة
(B)
The argument should match the parameters.
16
What is the function of a 'FOR' loop in programming?
إجابة
(A)
To execute a block of code repeatedly a specific number of times.
17
What is the primary purpose of nesting selection statements (e.g., an IF statement inside another IF statement)?
إجابة
(C)
To enable the implementation of complex conditional logic.
18
Which of the following is an example of an input statement?
إجابة
(C)
input("Enter a number:")
19
What is the main function of the `output` statement in the code examples?
إجابة
(C)
To display results to the user.
20
What is the purpose of the `CLOSEFILE` statement in file handling?
إجابة
(C)
To close the connection to the file.
21
What is a common use case for the 'try...catch' block?
إجابة
(B)
To handle potential errors during file operations
22
Which of the following tasks is NOT typically performed by standard library routines (as discussed in the text)?
إجابة
(C)
Defining the program's variables.
23
What is a fundamental concept in the context of creating a maintainable program?
إجابة
(B)
Using meaningful identifier names.
24
Which type of statement enables a program to make decisions based on the evaluation of an expression?
إجابة
(C)
Selection statement
25
In the provided Java code, what is the purpose of `try...catch` blocks?
إجابة
(B)
To handle potential errors during file operations
26
What type of programming structure is characterized by loops that have at least one iteration?
إجابة
(C)
Post-condition loops.
27
What operation is being performed by the code `NumberOfSacks = NumberOfSacks + 1;` (Counting)?
إجابة
(C)
Incrementing the value of NumberOfSacks.
28
What type of loop always has at least one iteration?
إجابة
(C)
Do-While loop
29
Which of the following is used to store a single character?
إجابة
(C)
Char
30
What is the function of a file object?
إجابة
(B)
To represent the file and provide methods for interacting with it.
31
Which logical operator would be used to combine the conditions 'A is true' and 'B is true' to only execute the consequent statements?
إجابة
(B)
AND
32
What does the term 'bug' refer to in the context of programming?
إجابة
(B)
An error or defect in a program.
33
What happens if there is a nesting of selection statements (IF-ELSE inside another IF-ELSE)?
إجابة
(C)
It can create more complex decision-making logic.
34
When a function is defined, what will always be defined as the first statements to be defined?
إجابة
(D)
The name of the function or procedure
35
What is the purpose of an algorithm?
إجابة
(B)
To provide step-by-step instructions for solving a problem.
36
In the Totaling example (TotalWeight = TotalWeight + Weight), what does 'Weight' represent?
إجابة
(B)
The amount to be added to the total weight.
37
Which statements are correct about nested statements?
إجابة
A
C
38
Which string handling method is used to find the number of characters in a string?
إجابة
(B)
Length
39
In the context of a program, what does 'iteration' refer to?
إجابة
(B)
The process of repeating a set of instructions.
40
What is the purpose of the `OPENFILE` command in pseudocode for file handling?
إجابة
(C)
To establish a connection with the file.
41
Which operator is used to get the remainder in division?
إجابة
(C)
%
42
What is the primary function of selection statements in programming?
إجابة
(C)
To make decisions and control program flow based on conditions.
43
What data type would be most appropriate for storing a student's grade (e.g., A, B, C)?
إجابة
(C)
STRING
44
What operation does the following line of pseudo-code perform? `studentAverage = studentTotal / numOfSubjects`
إجابة
(B)
Calculates the average mark of a student.
45
What does the inner loop of the program, as described in the 'Worked Example,' primarily calculate?
إجابة
(C)
The total marks for each student.
46
In the code examples, which language uses `dim` and `console.writeline`?
إجابة
(B)
Visual Basic
47
In Java, what is used to create an object for writing into a file?
إجابة
(C)
FileWriter
48
What kind of loop is used for iteration in the examples given?
إجابة
(A)
FOR...NEXT loop
49
What will be the output when `age` is 20, given the following code?
```
IF age >= 17
THEN
Print "You are an adult"
ELSE
Print "You are a child"
ENDIF
```
إجابة
(B)
You are an adult
50
Which loop structure is known for checking the condition at the *end* of the loop?
