Array Based Quiz - Easy

What will be the output of the following C++ code?

• 1

• 2

• 3

• 4

What does the following C++ code snippet do?

int numbers[3] = {4, 7, 2};

• Declares an array of size 3 and initializes it with values 4, 7, and 2

• Declares a variable named numbers with a value of 3

• Declares a function named numbers that takes three arguments

• Declares an array of size 3 without initializing it

What is the output of the following C++ code?

• 0

• 2

• 4

• Garbage Value

How do you find the length of a basic array in C++?

• Using the length() method

• By subtracting the starting address from the ending address

• There is no direct way to find the length of an array

• Using the size() method

What is the output of the following C++ code?

• 5

• 1

• 4

• 6

What is the output of the following C++ code?

• 5

• 1

• Compilation Error

• 6

What does the following C++ code snippet do?

int numbers[5] = {};

• Declares an array of size 5 and initializes it with zeros

• Declares an empty array named numbers

• Declares a variable named numbers with a value of 5

• Declares an array of size 5 without initializing it

What will be the output of the following C++ code?

• 0

• 5

• Compilation Error

• Garbage value

How do you initialize an array in C++ with all elements set to a specific value, say 10?

• int arr[] = {10};

• int arr[5] = {10};

• int arr[5] = {10, 10, 10, 10, 10};

• int arr[10] = {0};

How do you declare a 2D array in C++ with 3 columns and 4 rows?

• int arr[3][4];

• int arr[4][3];

• int arr[][] = {3, 4};

• int arr[3, 4];