Kyndryl Data Engineer Interview Questions and Answers

Q1. How can you design an Azure Data Factory pipeline to copy data from a folder containing files with different delimiters to another folder?
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Q2. Write a pyspark program that reads multiple csv files and creates a data frame with count of records against each file
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Q1. How to Ensure Data loss in ETL pipeline
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Q2. Why to spin up Dataproc cluster when there is serverless batch job exists.
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Q1. Write code in regular expression to remove the special characters
Ans. 
Use regular expression to remove special characters from a string
• Use the regex pattern [^a-zA-Z0-9\s] to match any character that is not a letter, digit, or whitespace

• Use the replace() function in your programming language to replace the matched special characters with an empty string

• Example: input string 'Hello! How are you?' will become 'Hello How are you' after removing special characters
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Q2. Questions on resume
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Q1. Python SQL question
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Q1. More on Project side
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Q1. Salary Discussion
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Its mandatory test even for experience people

Q1. Related to technology
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Q1. Very good discussion towards work culture, salary and all
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Q1. Sql questions were
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Q2. Spark related aswell
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Asked me two string array question one was to reverse a string without any pre build function and second one was a medium question to print the number and the count of it into the next level of the tree

Q1. Who is your idol?
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Q2. How do you menage your work?
Ans. 
I manage my work by prioritizing tasks, setting goals, staying organized, and communicating effectively with team members.
• Prioritize tasks based on deadlines and importance

• Set clear goals and milestones to track progress

• Stay organized with tools like project management software

• Communicate effectively with team members to ensure alignment and collaboration
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1. Questions on spark basica
2. Sql coding questions
3. Java or scala basics