Computer Science for IGCSE & O level - Programming (Section 16)
1
What does the program calculate in the first nested loop (FOR Subject = 1 TO NumOfSubjects)?
Trả lời
(D)
The sum of marks for a subject and average for the subject.
2
What are the common elements for a function definition?
Trả lời
A
B
C
3
What does 'WRITE' do, in file handling as shown in pseudocode?
Trả lời
(B)
Writes a line of text to the file.
4
Which logical operator indicates 'both' conditions must be true for the result to be true?
Trả lời
(B)
AND
5
In the provided example of an IF-ELSE statement nested within another IF-ELSE, what's the relationship between the outer and inner blocks?
Trả lời
(B)
The inner block is executed based on the condition of the outer block.
6
What is the purpose of the constant declaration in the given examples?
Trả lời
(B)
To make the values unchangeable.
7
What does the '==' operator typically represent in programming?
Trả lời
(B)
Equality comparison
8
Which elements are commonly part of an algorithm?
Trả lời
A
B
C
D
9
In the examples given, which language uses `Console.WriteLine()`?
Trả lời
(C)
Visual Basic
10
What is the role of the 'Finish' variable in the given pseudocode example, specifically related to the "REPEAT ... UNTIL" loop?
Trả lời
(B)
To control the number of iterations.
11
In the Totaling example, what is the effect of `TotalWeight = TotalWeight + Weight;`?
Trả lời
(C)
Adds 'Weight' to 'TotalWeight' and stores the result in 'TotalWeight'.
12
What determines the number of times a "For" loop executes?
Trả lời
(C)
The range specified by the start, end, and step values.
13
What would be the outcome if the `answer` variable is given the value "*" in a case statement where cases are defined for '+', '-', '*' and '/', but no default case is available?
Trả lời
(A)
The code block corresponding to the '*' case would be executed.
14
In pseudo-code, what is the purpose of the statement `DECLARE`?
Trả lời
(B)
To define the data type of variables.
15
Based on the IF statement example, what will be the result if 'age' is 15?
Trả lời
(D)
No output will be generated.
16
In the pseudocode, what function is used to display something on the screen?
Trả lời
(C)
OUTPUT
17
What happens if the 'age' is 17 in the given code?
```
IF age >= 17
THEN
Print "You are an adult"
ELSE
Print "You are a child"
ENDIF
```
Trả lời
(B)
You are an adult
18
How do you know if a variable is a local variable?
Trả lời
(A)
It is declared within a procedure or function.
19
What does '/* ... */' denote in programming, based on the example?
Trả lời
(B)
A multi-line comment.
20
What data is used to calculate the result in the code example?
