Linked Lists MCQs

What is a Singly Linked List?

• A Singly Linked List is a data structure where each element in the list contains a reference to the previous element in the sequence.

• A Singly Linked List is a type of array where elements are stored in a random order.

• A Singly Linked List is a data structure that allows elements to be accessed in constant time.

• A Singly Linked List is a data structure where each element in the list contains a reference to the next element in the sequence.

What is a Doubly Linked List?

• A Doubly Linked List is a type of tree structure with multiple branches connecting nodes.

• A Doubly Linked List is a type of linked list where each node contains a reference to the previous and next node in the sequence.

• A Doubly Linked List is a type of data structure that only allows traversal in one direction.

• A Doubly Linked List is a type of array where each element contains a reference to the previous and next element.

What is a Circular Linked List?

• A Circular Linked List is a type of linked list where the nodes are arranged in a straight line.

• A Circular Linked List is a type of linked list where the last node points back to the first node, forming a circle.

• A Circular Linked List is a type of linked list where the first node points to the last node.

• A Circular Linked List is a type of linked list where each node points to the previous node.

Which operation is used to insert a node at the beginning of a Linked List?

• Updating the middle node

• Deletion at the beginning

• Insertion at the beginning involves updating the 'next' pointer of the new node to point to the current head of the Linked List, and then updating the head to point to the new node.

• Insertion at the end

Which operation is used to delete a node from the end of a Linked List?

• Delete operation

• Pop operation

• Erase operation

• Remove operation

How many pointers are there in a Doubly Linked List node?

• 2

• 4

• 3

• 1

In a Circular Linked List, which node points to the first node?

• The middle node

• The largest node

• The second node

• The last node

What is the main advantage of using a Doubly Linked List over a Singly Linked List?

• Bidirectional traversal capability

• Constant time insertion at the beginning

• Faster search operations

• Lower memory usage

Which type of Linked List allows traversal in both directions?

• Stack

• Circular Linked List

• Singly Linked List

• Doubly Linked List

How is memory allocated for nodes in a Linked List?

• Memory for nodes in a Linked List is allocated statically.

• Memory for nodes in a Linked List is allocated dynamically.

• Memory for nodes in a Linked List is allocated automatically.

• Memory for nodes in a Linked List is allocated manually.