Quiz Chương 1 và 2 (nâng cao)

Question 1

What is the correct syntax to declare a function that returns an integer?

Accepted Answer

int function_name();

Question 2

Which of the following keywords is used to define a function in C?

Accepted Answer

void

Question 3

Which part of an algorithm should not be ambiguous?

Accepted Answer

Each step in the process

Question 4

Which statement about the C programming language is true?

Accepted Answer

It is a low-level language

Question 5

In C, which of the following is NOT a valid data type for defining a variable?

Accepted Answer

integer

Question 6

What is the role of "preprocessor directives" in C?

Accepted Answer

To include external libraries before compilation

Question 7

What is the result of dividing an integer by zero in C?

Accepted Answer

A runtime error

Question 8

Which of the following is true about arrays in C?

Accepted Answer

Array elements must be of the same data type

Question 9

What does the "continue" statement do in a loop in C?

Accepted Answer

Skips the current iteration and moves to the next iteration

Question 10

What is the purpose of a "return" statement in a function?

Accepted Answer

To return a value to the calling function

Question 11

Which of the following C constructs is used to repeat a block of code?

Accepted Answer

while loop

Question 12

In algorithm design, what is meant by "effective" in the context of a solution?

Accepted Answer

The solution can solve the problem within time constraints

Question 13

How can you initialize a float variable in C?

Accepted Answer

float a = 10.5;

Question 14

What is the primary function of an array in C?

Accepted Answer

To store a collection of values of the same data type

Question 15

What does "iterative process" mean in algorithm design?

Accepted Answer

Repeated execution of steps to refine a solution

Question 16

Which of the following best describes a "high-level programming language"?

Accepted Answer

It is more abstract and easier for humans to understand

Question 17

Which of the following is a common use for the "break" statement in C?

Accepted Answer

To exit from a loop or switch statement

Question 18

What would happen if you forget the "return 0;" statement in the main function?

Accepted Answer

The program may produce undefined behavior

Question 19

Which of the following is a valid way to define a pointer in C?

Accepted Answer

int *ptr;

Question 20

In C, what is the purpose of the 'scanf' function?

Accepted Answer

To read input from the user

Question 21

Which of the following is a typical step in the program development process?

Accepted Answer

Analysis, Design, Implementation, Testing

Question 22

In C, how do you comment a block of code?

Accepted Answer

/* block comment */

Question 23

What is the correct syntax to declare a variable in C that holds a character?

Accepted Answer

char var = 'A';

Question 24

Which of the following best describes the flowchart's role in algorithm design?

Accepted Answer

Provides a visual step-by-step process of solving a problem

Question 25

Which of the following is used to perform input in C?

Accepted Answer

scanf()

Question 26

What does the term "algorithmic" mean in problem-solving?

Accepted Answer

A set of instructions used to solve a problem

Question 27

What does the modulus operator (%) do in C?

Accepted Answer

Returns the remainder of division

Question 28

In C, which of the following is an example of "unary operator"?

Accepted Answer

++

Question 29

What happens when you assign an integer to a float variable in C?

Accepted Answer

It is implicitly converted without error

Question 30

Which of the following correctly declares a constant in C?

Accepted Answer

#define PI 3.14

Quiz Chương 1 và 2 (nâng cao)

Questions 30

Quiz Chương 1 và 2 (nâng cao)

Questions 30