Physicswallah Senior Software Engineer 2 Interview Questions and Answers

Q1. They asked us to design the database of a e-learning platform like upGrad.You have to handle login as well as lectures.
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Q2. SQL query to fetch progress for given user id and course id
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Two dynamic programming challenges at the hard level on LeetCode and 10 medium-level SQL challenge.

Question on Linked list. array and string manipulation.

Q1. Explain request lifecycle in rails?
Ans. 
Request lifecycle in Rails involves routing, controller actions, rendering views, and responding to the client.
• 1. Request comes in through the browser or API endpoint.

• 2. Rails router determines which controller and action to route the request to.

• 3. Controller action processes the request, interacts with the model, and prepares data for the view.

• 4. View template is rendered with the data from the controller.

• 5. Response ...read more
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Q2. Code Merge Sort using Ruby
Ans. 
Implement Merge Sort algorithm in Ruby
• Divide the array into two halves recursively

• Merge the sorted halves back together

• Use a helper method to merge the two halves
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Q1. Basic Questions based on pervious project
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Q1. Tell me about yourself
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Q2. Coding Question
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Q1. Tell me about yourself
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Q2. Salary discussion
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DS algo questions with about 3 questions in topic like graph, strings ,arrays

Q1. DS algo question on LinkedIn list
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Q2. DS algo question on graph
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Normal Aptitute test with logical reasoning.