C++ - Module 9 Quiz

What is a parameter in a C++ function?

• C. A keyword to end the function

• B. A variable used within the function

• A. A value passed when declaring a function

• D. A data type used for calculations

What does the function printNum(int num) do?

• B. Adds num to another variable

• A. Prints the value of num

• D. Checks if num is even

• C. Multiplies num by 2

What is the purpose of the return statement in a C++ function?

• D. Loops through the code again

• C. Initializes a variable

• B. Prints a message to the console

• A. Ends the function execution

In the function displayNum(int n1, float n2), what are n1 and n2?

• C. Function parameters

• B. Data types

• A. Function names

• D. Return values

What is the output of the program when num1 is 5 and num2 is 5.5?

• C. The int number is 5 The double number is 5.55

• B. The int number is 5 The double number is 5

• D. The int number is 5 The double number is 5.0

• A. The int number is 5 The double number is 5.5

What does the code return (a + b); do in the add() function?

• A. Subtracts a from b

• B. Multiplies a by b

• C. Divides a by b

• D. Returns the sum of a and b

What data type is used in the function add(int a, int b) to return a value?

• D. float

• A. void

• B. double

• C. int

What is the purpose of the int sum; variable in the main() function?

• A. Stores the result of a function

• B. Prints a message to the console

• C. Ends the program execution

• D. Initializes a variable

What is the output of the program when add(100, 78) is called?

• D. 100 + 78 = 78

• A. 100 + 78 = 178

• B. 100 + 78 = 10078

• C. 100 + 78 = 178.0

What is the data type of the variable sum in the main() function?

• C. int

• B. double

• A. void

• D. float