Yahoo Software Development Engineer II Interview Questions and Answers

Q1. It was a leetcode hard problem, optimised solution was done with DSU.
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Two more coding rounds - Can remember the questions

Q1. LLD Round - can't remember the exact question
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Q1. HLD Round - ecom with most popular items
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They have given coding test where 2 medium to easy level questions where asked

Q1. It was dsa round where easy to medium level 2 questions were asked , topic linked list and stack
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Q1. This was a hld round
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Q1. Final was hm round around projects
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Haxckerrank Test with 3 problems

Q1. DSA and problem solving round
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Q1. LLD and machine coding round
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Q1. Hiring manager connect and team fit
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Q1. Design chat room where users can chat with each other and also able to join chat room
Ans. 
Design a chat room system where users can chat with each other and join chat rooms.
• Implement user authentication and authorization to ensure secure access to chat rooms.

• Create a database to store chat messages, user information, and chat room details.

• Develop a real-time messaging system using websockets for instant communication.

• Allow users to create new chat rooms and join existing ones.

• Include features like message h
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DSA coding test, 2 questions

Q1. DSA round, asked one graph problem
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Q2. Question around BFS
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Easy questions and mostly implementation based.

Q1. Check if graph is bipartite
Ans. 
A graph is bipartite if its vertices can be divided into two disjoint sets such that every edge connects a vertex from one set to another.
• Use depth-first search or breadth-first search to traverse the graph.

• Assign colors to the vertices alternatively as you traverse the graph.

• If at any point, an edge connects two vertices of the same color, the graph is not bipartite.
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Write code on paper using the multithreading, oops and design patterns correctly

Q1. List of hot videos on YouTube
Ans. 
I'm sorry, I don't have access to real-time data to provide a list of hot videos on YouTube.
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Q2. Design amazon Prime
Ans. 
Design Amazon Prime - a subscription service offering fast shipping, streaming of movies, TV shows, music, and more.
• Offer fast shipping for products purchased on Amazon

• Provide access to a library of movies, TV shows, and music for streaming

• Include exclusive deals and discounts for Prime members

• Offer additional services like Prime Video, Prime Music, Prime Reading, and more
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