Modify a data structure : What is a Linked List?

The video tutorial introduces linked lists, explaining their structure and types, including singly and doubly linked lists. It covers the essential operations such as adding, removing, and searching nodes, and describes how nodes are represented in JavaScript with properties like value, next, and previous. The tutorial emphasizes the importance of head and tail pointers in maintaining the linked list structure.

What is a key difference between a singly linked list and a doubly linked list?

• A singly linked list has nodes with references only to the next node.

• A doubly linked list has nodes with references only to the next node.

• A singly linked list has nodes with references to both next and previous nodes.

• A doubly linked list does not have a head node.

Which operation would you use to add a new node at the beginning of a linked list?

• Add to tail

• Add to head

• Remove from tail

• Remove from head

What happens to the head and tail pointers when nodes are added or removed?

• They point to the middle node.

• They change to point to the new head or tail nodes.

• They remain unchanged.

• They point to the previous node.

What is the purpose of the search operation in a linked list?

• To find a specific piece of data

• To remove a node

• To sort the linked list

• To add a new node

Which property of a node in a linked list holds the actual data?

• Next property

• Previous property

• Value property

• Node property