#Data Structures

In the technical interview, you were asked questions primarily from stacks, queues, and various data structure principles along with Object-Oriented Programming (OOP) concepts. Additionally, describe how you would apply a specific data structure to a real-life scenario provided during the interview.

Discuss the various ways to traverse a binary tree. Additionally, explain the differences between depth-first search (DFS) and breadth-first search (BFS).

Explain your approach to solving problems related to linked lists. What are the common operations you can perform on a linked list and their time complexities?

What is a doubly-linked list (DLL), and what are its applications? Describe the structure and how it differs from singly-linked lists.

Given a list of strings, find the most frequent element and store it in the most appropriate data structure. Consider the efficiency of your solution.