kipi.ai Sdet Lead Interview Questions and Answers

Q1. Can you describe your experience within the industry?
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Q2. What is workflow automation?
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Q1. Sql is the most important , Focus on Joins ,Sub query and Sql basics
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Q2. Joining tables with different joins
Ans. 
Joining tables with different joins in SQL
• Use INNER JOIN to return rows when there is at least one match in both tables

• Use LEFT JOIN to return all rows from the left table and the matched rows from the right table

• Use RIGHT JOIN to return all rows from the right table and the matched rows from the left table

• Use FULL JOIN to return rows when there is a match in one of the tables
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Q1. SQL joins, window functions, scenario based questions on data cleaning, data processing
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Q2. What strategies can be employed for the optimization of ETL processes and Spark jobs?
Ans. 
Optimize ETL processes and Spark jobs through efficient design, resource management, and performance tuning.
• Use partitioning to improve data processing speed. For example, partitioning large datasets by date can speed up queries.

• Implement data caching in Spark to store intermediate results, reducing the need for repeated computations.

• Optimize data formats by using columnar storage formats like Parquet or ORC, which imp...read more
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Q1. What is zero coupon bond?
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A zero coupon bond is a bond that pays no interest and is sold at a discount to its face value.
• Zero coupon bonds are also known as discount bonds.

• Investors buy these bonds at a price lower than their face value and receive the full face value at maturity.

• The difference between the purchase price and the face value is the investor's return.

• Zero coupon bonds are often used for long-term investments, such as retirement sa...read more
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Q2. What is corporate actions and how you record those in books?
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Corporate actions are events initiated by a company that can affect its stock price and shareholders. They are recorded in books through various accounting entries.
• Corporate actions include stock splits, dividends, mergers, acquisitions, and spin-offs.

• These actions are recorded in books through journal entries and adjustments to accounts such as retained earnings and stockholders' equity.

• For example, if a company decla...read more
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Test of SQL, Tableau and other skills based on your resume on Skillate

Q1. SQL and other skills technical questions
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Q1. Manager round / 2nd technical round
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Q1. Basic technical discussion for an hour
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Q2. Coding on array asc or desc
Ans. 
Sorting an array of strings in ascending or descending order based on alphabetical order.
• Use built-in sort functions: In JavaScript, use array.sort(). Example: ['apple', 'banana', 'cherry'].sort() results in ['apple', 'banana', 'cherry'].

• For descending order, reverse the sorted array: Example: ['apple', 'banana', 'cherry'].sort().reverse() results in ['cherry', 'banana', 'apple'].

• Custom sort function: Use a comparator ...read more
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Again further basic technical discussion for half time and a coding problem

Again same as round 2 and coding test

Discussion abt tech stack and worked assignments and ending with a coding test .This round happens for more experienced ppl by project lead/learning director level guys.The result wl told in their attitude and words here if salary you are expecting is out of their budget..Total wasted my time