Amazon Software Development Engineer Intern Interview Questions, Process, and Tips

2 mid level questions on ds

Q1. System design on my done projects.
Ans. 
Designed a system for a project involving real-time data processing and analysis.
• Utilized microservices architecture for scalability and flexibility

• Implemented message queues for asynchronous communication between components

• Used a combination of relational and NoSQL databases for different data storage needs
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Q2. What pattern have you followed while building modules.
Ans. 
I have followed the modular design pattern while building modules.
• I break down the software into smaller, independent modules that can be easily managed and maintained.

• I ensure each module has a clear purpose and well-defined interfaces for communication with other modules.

• I use techniques like encapsulation, abstraction, and separation of concerns to create modular designs.

• Example: Using the MVC (Model-View-Controller...read more
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Q1. Questions on team work.
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DSA-Binary Trees,Dynamic Programming

Q1. Boundary Traversal Of tree
Ans. 
Boundary Traversal Of tree
• Boundary traversal of a tree involves visiting the nodes of the tree in a specific order

• The order is: left boundary, leaf nodes, and right boundary

• We can use a combination of pre-order, in-order, and post-order traversals to achieve this

• Start with the root node and recursively traverse the left subtree, printing the nodes

• Then traverse the leaf nodes using an in-order traversal

• Finally, traverse...read more
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Q2. Find Peak Element
Ans. 
Find Peak Element
• A peak element is an element that is greater than its neighbors

• The problem can be solved using binary search

• If the middle element is smaller than its neighbors, then there must be a peak on the right side

• If the middle element is greater than its neighbors, then there must be a peak on the left side

• Repeat the process on the corresponding side until a peak element is found
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1 hr basic aptitude questiions

Duration - 2hr, ask 3 coding questions base on graph

Medium Level DSA problems were asked

Q1. Medium Level DSA based on Hashing
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Q2. Binary Tree medium level problem
Ans. 
The question involves solving a medium level problem related to binary trees.
• Understand the basic concepts of binary trees such as nodes, edges, and traversal methods.

• Practice implementing common operations on binary trees like insertion, deletion, and searching.

• Consider using recursion to solve problems involving binary trees.

• An example of a medium level problem could be finding the lowest common ancestor of two nodes
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