Zumen Data Engineer Interview Questions and Answers

Q1. Introducing your self and project
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Q2. Severity and priority
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Q3. Smoke and sanity testing
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Q4. Scenario base question if find bug before release
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Q1. Find in rotated sorted array
Ans. 
Search for a target value in a rotated sorted array.
• Use binary search to find the pivot point where the array is rotated.

• Determine which half of the array the target value lies in based on the pivot point.

• Continue binary search in the appropriate half of the array to find the target value.
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Q2. Design IMDB. how will you manage concurrent ratings
Ans. 
Design IMDB with concurrent ratings management
• Implement a locking mechanism to ensure only one user can update a rating at a time

• Use a queue system to handle multiple rating requests in an orderly manner

• Consider using distributed systems to handle high concurrency levels
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Q1. Design vehicle rental system. Api design
Ans. 
Design a vehicle rental system API
• Create endpoints for listing available vehicles, booking a vehicle, and returning a vehicle

• Include authentication and authorization mechanisms for users and admins

• Implement payment gateway integration for processing rental payments

• Include features like vehicle search, filtering, and reviews/ratings

• Consider scalability and performance optimizations for handling high traffic
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Basic Js concepts like debouncing,event loop, and other output-based questions.

Q1. Js concepts in depth
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Q1. Hiring manager round, questions around my project
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Q2. Optimization techniques
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Optimization techniques are methods used to improve the efficiency and performance of software applications.
• Use algorithms like greedy, dynamic programming, or divide and conquer to optimize code

• Minimize time complexity by avoiding nested loops and unnecessary iterations

• Utilize data structures like hash tables, arrays, and trees for efficient storage and retrieval

• Profile code to identify bottlenecks and optimize critic...read more
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There are Question based on data strcuture ,they cover all the topic in ds

In coding code they gave internet access to solve the problem after 30 they told us to make some changes in it and we should ready to explain the entire code

Q1. K8s architecture
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