StockX Data Engineer Interview Questions and Answers

First round was coding test in online mode which was quite easy.

Q1. In the 2nd round they asked the technical questions from SQL , simple coding questions.
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Q1. Tell me about your self
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Q2. What is your strengths
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If the cost price of an item is Rs. 150 and the selling price is Rs. 200, what is the profit percentage?

Q1. What is the difference between a stack and a queue? Give an example where you would use each.
Ans. 
A stack is a LIFO data structure while a queue is a FIFO data structure.
• Stack: Last In First Out (LIFO), used in undo/redo functionality, backtracking, and recursion.

• Queue: First In First Out (FIFO), used in job scheduling, breadth-first search, and printing.

• Stack uses push() and pop() operations while queue uses enqueue() and dequeue() operations.
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Q2. What is the difference between a compiler and an interpreter?
Ans. 
A compiler translates the entire program into machine code before execution, while an interpreter translates and executes the program line by line.
• A compiler converts the source code into an executable file, while an interpreter executes the code directly.

• Compilers typically produce faster and more efficient code, while interpreters provide faster development and debugging.

• Examples of compilers include GCC, Clang, and ...read more
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Q3. A compiler is a program that translates the entire source code into machine code before executing it. The source code is fed into the compiler, which analyzes and translates it into an executable file. Thi...read more
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Q1. How do you handle stress and pressure?
Ans. 
I handle stress and pressure by practicing time management, seeking support from colleagues, and maintaining a healthy work-life balance.
• I prioritize tasks and create a schedule to manage my time effectively.

• I communicate with my team and seek their assistance or guidance when needed.

• I engage in stress-relieving activities outside of work, such as exercising or spending time with loved ones.

• I practice mindfulness and d...read more
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Coding, simple interest, compound interest,analogy,odd men out ECT....

Indian market was developed

Q1. Tell me your self
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Q2. What are you qualification
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Q3. What are accpting for salary
Ans. 
I am open to discussing a competitive salary based on my experience and the responsibilities of the role.
• I am looking for a fair and competitive salary based on industry standards and my experience

• I am open to discussing benefits and other compensation packages

• I am willing to negotiate based on the responsibilities of the role

• I am looking for a salary that reflects my skills and contributions to the company
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Q4. Why did you hiring in my company
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Q5. What is manual testing
Ans. 
Manual testing is the process of testing software manually without the use of automation tools.
• Manual testing involves executing test cases manually to identify defects and issues in the software.

• It is a time-consuming process and requires human intervention.

• Manual testing is often used for exploratory testing, ad-hoc testing, and usability testing.

• Examples of manual testing include functional testing, regression testi
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Coding besed test and dsa base test and programming concepts

C++ coding and web development coding and dsa components

Apptitude test exam for first round

Python language coding test

Basic aptitude questions were asked Reasoning wgrh

Two hard level coding questions of leetcode based on binary search

Q1. Create pagination component using an api show the data for the pages
Ans. 
Create a pagination component using an API to display data for different pages.
• Use API to fetch data for each page

• Implement pagination logic to display data for each page

• Allow users to navigate between pages
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