Understanding Arrays in C++

What is an array?

• A collection of different types

• A single value holder

• A variable that can store multiple values of the same type

• A function in programming

How are the values in an array stored?

• In non-adjacent memory locations

• Randomly throughout memory

• In adjacent memory locations

• In separate functions

Which operator is used to declare an array?

• ()

• {}

• []

• ||

What does the following declaration signify? int tests[5];

• An array of 5 integers

• A function with 5 parameters

• An integer divided by 5

• A loop that repeats 5 times

How is the size of an array determined in C++?

• Number of elements multiplied by the size of each element

• Sum of all elements

• Number of elements plus size of one element

• Fixed value

What happens if you use a subscript that is beyond the bounds of the array in C++?

• It is ignored

• It defaults to the last valid subscript

• It can corrupt memory and cause program errors

• It will create a new array

Which of the following is an example of array initialization?

• int tests = 5;

• int tests[5] = {0, 1, 2, 3, 4};

• int tests(5);

• int tests = {5};

How does C++ handle array bounds checking?

• It automatically prevents out-of-bounds access

• It does not check bounds

• It throws an exception when out-of-bounds

• It fixes the error automatically

What is the result of an off-by-one error in array indexing?

• Increased performance

• Unchanged program behavior

• Access to incorrect data

• Syntax error

What does the subscript in array indexing start from in C++?

• 1

• 0

• -1

• It is user-defined