ThoughtWorks Interview Questions, Process, and Tips

Q1. OOP questions , clean coding
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30 mins round and 1 coding question

Development of a feature

Two question was asked to solve using PySpark.
Word Count Coding Question was asked with Test Cases.

Q1. Question on PySpark Architecture
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Q2. PySpark Coding Question
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Asssignment on docker

Q1. Python basic questions
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Q2. Why python is used for data science
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Python is used for data science due to its simplicity, readability, extensive libraries, and community support.
• Python is easy to learn and read, making it accessible for beginners and experts alike

• Python has a wide range of libraries like NumPy, Pandas, and Scikit-learn for data manipulation and analysis

• Python has a strong community support with active forums and resources for data science enthusiasts

• Python's versatili...read more
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Q3. Questions related to projects
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Q4. Hasmap working on the backend
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HashMap is a data structure commonly used in backend development for efficient key-value storage and retrieval.
• HashMap is a collection that stores key-value pairs and allows for fast retrieval of values based on keys.

• It is commonly used in backend development for caching, session management, and data storage.

• Example: HashMap employeeSalaries = new HashMap<>(); employeeSalaries.put("Alice", 50000); int
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Q1. Sort 0,1 in ascending order
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Sort an array of 0s and 1s in ascending order
• Use a sorting algorithm like bubble sort or counting sort

• Count the number of 0s and 1s and then reconstruct the array

• Alternatively, use two pointers approach to swap 0s and 1s
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