Linked List Quiz

What is a singly linked list?

• A data structure that consists of a sequence of nodes, where each node contains data and a reference to the next node in the sequence.

• A list that contains data but no reference to the next node

• A type of list that can only be accessed from the end

• A list that can only store integers

Explain the concept of a node in a singly linked list.

• A node is a type of variable used in object-oriented programming

• A node is a type of leaf in a tree structure

• A node is a basic unit of data storage that contains a value and a reference to the next node in the sequence.

• A node is a type of data structure used in binary search trees

How do you insert a new node at the beginning of a singly linked list?

• Delete the current head of the list and then insert the new node

• Update the next pointer of the new node to point to the current head of the list, and then update the head of the list to point to the new node.

• Insert the new node at the end of the list instead of the beginning

• Update the previous pointer of the new node to point to the current head of the list

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

• Each node in a singly linked list points to the next node, while each node in a doubly linked list points to both the next and previous nodes.

• Doubly linked list has only one pointer in each node

• Both singly linked list and doubly linked list have the same structure

• Each node in a singly linked list points to the previous node

What are the advantages of using a doubly linked list over a singly linked list?

• Doubly linked list allows for traversal in both directions.

• Doubly linked list takes up less memory than a singly linked list.

• Doubly linked list is more efficient in terms of time complexity than a singly linked list.

• Doubly linked list allows for traversal in only one direction.

Explain the concept of a doubly linked list.

• A type of list where each node contains a data element and a pointer to the previous node only

• A type of list where each node contains only one pointer to the next node

• A type of linked list where each node contains a data element and two pointers, one pointing to the next node and another pointing to the previous node.

• A type of list where each node contains a data element and three pointers

What are some common applications of linked lists?

• Implementing data structures, memory allocation, dynamic memory management

• Creating spreadsheets

• Building websites

• Designing video games

How is a linked list used in implementing a stack?

• The linked list is not used in implementing a stack

• New elements are added and removed from the middle of the linked list

• The top of the stack is represented by the head of the linked list, and new elements are added and removed from the head of the list.

• The top of the stack is represented by the tail of the linked list

Explain the use of a linked list in a music playlist application.

• Linked list can be used to shuffle the songs in the playlist

• Linked list can be used to store the artist names in the playlist

• Linked list can be used to play the songs in the playlist

• Linked list can be used to store the songs in the playlist and maintain the order of the songs.