Arrays in Programming

What is an array in programming?

• A type of function

• A loop that repeats

• An ordered collection of elements stored in consecutive memory

• A random group of values

What type of arrays does C++ support?

• Heterogeneous

• Homogeneous

• Mixed-type

• Dynamic only

Which of the following is a homogeneous array?

• [1, "two", 3.0]

• [‘a’, 2, 4.5]

• [10, 20, 30]

• ["apple", 3.14, false]

What does this declare: int scores[5];?

• A pointer

• An array with 4 elements

• An array of 5 integers

• An array with default values

Which type of array allows elements of different data types?

• Integer arrays

• Multi-dimensional arrays

• Heterogeneous arrays

• Constant arrays

What does float temps[7] = {30.5, 31.0}; represent?

• Full initialization

• Partial initialization

• Invalid declaration

• String array

What will be the total memory allocation of an array int data[4]; on most systems?

• 2

• 4

• 8

• 16

What is the correct syntax to declare a one-dimensional array?

• array int[5];

• int array[5];

• [5]int array;

• array = int(5);

What are the values inside an array called?

• Functions

• Pointers

• Elements

• Sizes

A 2D array is best used to represent which of the following?

• A list of names

• A table or matrix

• A sequence of functions

• An if-statement