CARS24 Senior Software Developer Interview Questions and Answers

The exam duration is one and a half hours.

The total exam time is one and a half hours.

It encompasses all topics related to full stack development.

Q1. Asks questions on SQL
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Q2. Asks question in typical topics
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Q1. Where do you see yourself in two years?
Ans. 
In two years, I see myself as a senior software developer leading a team on innovative projects.
• Advancing to a senior software developer role

• Leading a team on new and innovative projects

• Continuing to enhance my technical skills through ongoing learning and training
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Q1. LRU Cache - how to tackle
Ans. 
LRU Cache is a data structure that maintains a list of items in order of most recently used to least recently used.
• Implement using a doubly linked list and a hashmap for efficient operations

• When an item is accessed, move it to the front of the list

• When the cache is full, remove the least recently used item from the end of the list
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Q2. LRU Cache implementation based on a real time system. How would the main work which will be called etc etc
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Easy to medium questions, Questions on DSA and Node.js.

Q1. Valid parenthesis
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Q2. Three sum problem
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Q1. The question was about Nodejs
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Q2. The question was to build a linked list in Nodejs
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Q1. The first question was related to DSA
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Q2. The question was related to SQL
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Coding test with Java and dsa questions

Q1. Core Java Questions
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Q2. Maximum subbarray
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Majorily on SQL and Databases

Q1. Align two images in a page with same width and same height
Ans. 
Use CSS to align two images with same width and height on a page
• Set both images to have the same width and height using CSS

• Use flexbox or grid layout to align the images horizontally or vertically

• Adjust margins or padding as needed for spacing
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Q2. Array related question
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Q1. Situation based question
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Q2. Majorily focused on project
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Q1. 1. Given an array find a subset that sums to a given sum K 2. Given an array with duplicate elements, print all triplets that sum to K. Each element at any index i can only be used once.
Ans. 
Given an array, find a subset that sums to a given sum K and print all triplets that sum to K.
• Use a recursive approach to find subsets that sum to K

• Use a nested loop to find triplets that sum to K

• Avoid using duplicate elements in triplets
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Q1. LLD round 1. Design Book My Show. Interviewer was interested in classes and most common api. He asked more about how will these classes when translated into RDBMS table, will look like. What all index I co...read more
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Q1. HLD round 1. Design swiggy 2. Follow up question was to create a state diagram for order object.
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Q1. With HM 1. Projects 2. Major challenges during those projects 3. Who all were you stake holders 4. How do you contribute in design discussion 5. How to you plan your testing with QA and other involved team...read more
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Q1. With VP of engineering 1. Project discussion. In each scope he asked what if this would fail then how are you handling your code. for eg. Let's say you are reading a file and dumping data in batches in 1 t...read more
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