Array and Array Operations Quiz Online Practice Test

1. How would you best define an array?

A data structure exhibiting hierarchical behaviour

A container holding elements of the same type

An immutable structure once initialized

Not considered a data structure

2. What's the correct way to initialize an array in C?

int arr[3] = (1,2,3);

int arr(3) = {1,2,3};

int arr[3] = {1,2,3};

int arr(3) = (1,2,3);

3. What’s the correct way to create an array in Java?

int arr[] = new int(3);

int arr[];

int arr[] = new int[3];

int arr() = new int(3);

4. How do you correctly declare a multidimensional array in Java?

int[] arr;

int arr[[]];

int[][] arr;

int[[]] arr;

5. At what point does an ArrayIndexOutOfBoundsException occur?

Compile-time

Run-time

It's not an error

It's not an exception

6. Which concept heavily relies on arrays?

Binary trees

Process scheduling

Caching

Spatial locality

7. What are the benefits of using arrays?

They can store objects of mixed data types

Elements within an array cannot be sorted

The index of the first element is 1

They simplify storing elements of the same data type

8. What are some limitations associated with arrays?

They don't support the implementation of structures like queues or stacks

There’s potential for memory wastage if the number of elements is less than the allocated size

Array indices can be negative

Element access is strictly sequential

9. Given that an int is 4 bytes, what is the total size of int arr[15];?

15 bytes

19 bytes

11 bytes

60 bytes

10. Typically, what is the index of the first element in an array?

-1

11. How are elements in an array accessed?

Randomly

Sequentially

Exponentially

Logarithmically

Test Name:	Array and Array Operations Quiz
Subject Category:	Computer Science
Test Type:	Multiple Choice Questions
Total Score / Questions:	11 / 11
Time Allowed:	10 Min
Who Should Practice this Test:	Students, job seekers, or professionals preparing for competitive exams and interviews.

Array and Array Operations MCQ Quiz Online Practice Test