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Trees interview questions

Trees interview questions.

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  • 1.

    Define Tree Data Structure

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  • 2.

    Define Binary Tree

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  • 3.

    What is Height and Depth of a Tree and its Nodes?

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  • 4.

    What's the difference between the data structure Tree and Graph?

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  • 5.

    What is Binary Search Tree?

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  • 6.

    How to implement a tree data-structure? Provide some code.

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  • 7.

    What is the difference between Tree Depth and Height?

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  • 8.

    Why do we want to use Binary Search Tree?

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  • 9.

    Provide some practical examples of using Depth-First Search (DFS) vs Breadth-First Search (BFS)?

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  • 10.

    What is Balanced Tree and why is that important?

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  • 11.

    What are advantages and disadvantages of BST?

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  • 12.

    Explain the difference between Binary Tree and Binary Search Tree with an example?

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  • 13.

    What is AVL Tree?

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  • 14.

    What is Diameter of a Tree?

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  • 15.

    Classify Tree Traversal Algorithms. Provide some visual explanation.

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  • 16.

    What is the difference between Heap and Red-Black Tree?

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  • 17.

    How does inserting or deleting nodes affect a Red-Black tree?

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  • 18.

    What is the time complexity for insert into Red-Black Tree?

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  • 19.

    What is Red-Black tree?

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  • 20.

    Explain how to balance AVL Tree?

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  • 21.

    Explain a B-Tree data structure for 5 years old

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  • 22.

    Explain what is B-Tree?

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  • 23.

    Why does a Breadth First Search (BFS) use more memory than Depth First Search (DFS)?

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  • 24.

    Explain what the main differences between red-black (RB) trees and AVL trees

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  • 25.

    How do we know whether we need to use BSF or DSF algorithm?

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  • 26.

    Is there any reason anyone should use BSTs instead of AVLs in the first place?

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  • 27.

    What's the main reason for choosing Red Black (RB) trees instead of AVL trees?

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  • 28.

    How is an AVL tree different from a B-tree?

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  • 29.

    What are the differences between B trees and B+ trees?

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  • 30.

    Why is a Hash Table not used instead of a B-Tree in order to access data inside a database?

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  • 31.

    Why do we need a separate datastructure like B-Tree for database and file system?

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  • 32.

    How are B-Trees used in practice?

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A database is an organized collection of data, generally stored and accessed electronically from a computer system. Where databases are more complex they are often developed using formal design and modeling techniques. Here is a list of coding interview questions on Databases to help you g...

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