Koantek Data Engineer Interview Questions and Answers

One python coding question and one sql coding questions and MCQ questions

Q1. --difference between rdd, dataframe and dataset.
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You will receive a test link in which you will have 4 mcq ,1 python problem and 1 sql question

Q1. This was also coding round on hackerrank with one moderator
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First round was a coding test online with screen monitoring

Q1. Hacker rank code for no reason for de
Ans. 
The question is unclear and requires further clarification.
• Request for more information on the specific requirements of the code.

• Ask for clarification on the purpose of the code.

• Determine the programming language to be used.
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Q2. Python sort element of string array by alphabet weightage and resolve all 23 test cases that nobody can
Ans. 
Sort string array elements by alphabet weightage in Python and pass 23 test cases.
• Use the sorted() function with key parameter to sort elements by weightage

• Define a function to calculate weightage of each character

• Test the function with various test cases to ensure accuracy
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Q1. Spark, AWS, Python
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Q1. Python, SQL, Spark
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Q1. Salary discussion
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Q1. General Interview
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BASIC PYTHON AND SQL

Q1. Questions based on past experience
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Q2. My roles and responsibilities
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Q1. Easy HR questions
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