1.Python OOPs Questions 2.SQL : print 2nd Highest salary, department wise total salary, inline views. 3. Binary Search tree: description, Searching time complexity, difference between linear search and bst search, BST Traversal types. 4.Stack: Applications, Operations, conditions for Overflow and Underflow. 5.Codes : What is palindrome? , String Palindrome , Number Palindrome (Logic + code)