Understanding Linked Lists Quiz

What is a linked list?

• A collection of elements stored in contiguous memory locations

• A linear data structure where elements are stored in nodes, and each node points to the next node

• A data structure that stores elements in a hierarchical format

• A fixed-size array of elements

What are the two main components of a node in a singly linked list?

• Key and index

• Data and pointer to the next node

• Value and array index

• Head and tail

Which of the following is a type of linked list?

• Binary linked list

• Circular linked list

• Parallel linked list

• Sequential linked list

In a doubly linked list, each node contains:

• Only a pointer to the next node

• Data and a pointer to the next node only

• Data, a pointer to the next node, and a pointer to the previous node

• Only data and an index

What does the last node of a singly linked list point to?

• The first node

• Itself

• The middle node

• NULL

Which of the following is a basic operation performed on a linked list?

• Compilation

• Traversal

• Encryption

• Sorting only

Which of the following is an advantage of a linked list over an array?

• Faster random access of elements

• Less memory usage per element

• Dynamic size that can grow or shrink at runtime

• Elements are stored in contiguous memory locations

Which of the following is a disadvantage of a linked list?

• It cannot store integers

• It does not support insertion of elements

• It does not allow dynamic memory allocation

• Random access of elements is not possible

In a circular linked list, the last node points to:

• NULL

• The first node of the list

• The middle node of the list

• Itself

Which of the following is a real-world application of a linked list?

• Implementing a relational database table

• Implementing a stack or queue

• Storing data in a spreadsheet

• Performing binary search on sorted data