In a singly linked list, each node contains a reference to: 
			
		
						 
									
						Which of the following operations can be performed efficiently on a linked list? 
			
		
						 
									
						How do you traverse a linked list? 
			
		
						 
									
						What is the time complexity for inserting a node at the end of a linked list with N nodes? 
			
		
						 
									
						Which type of linked list contains a reference to both the previous and next nodes? 
			
		
						 
									
						What is the purpose of the head node in a linked list? 
			
		
						 
									
						How do you delete a node from a linked list? 
			
		
						 
									
						What is the time complexity for searching for a specific element in a linked list? 
			
		
						 
									
						Which type of linked list has its last node pointing back to the head node?