Tree traversal questions

4 questions on Tree traversal from real job recruitment exams, newest first.

Questions

Given the following sequence of integers, construct a Binary Search Tree (BST) by inserting the elements in the order given: 50, 30, 70… — Combined Bank October 2026 – Written (BIBM)
Given the following traversal sequences of a binary tree: Postorder: 4, 3, 5, 1, 7, 6, 2 Reference Order: 4, 3, 1, 5, 2, 7, 6 Construct… — BPDB October 2026 – Written (BUET)
Why DFS is better than BFS? Explain. — DPDC October 2025 – Written (BUET)
You have to write the traversal order for the new algorithm which will traverse the following tree right child first, then left child and… — DPDC June 2025 – Written (BUET)