TechJini Automation Test Lead Interview Questions and Answers

Q1. Oops concepts, core java
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Q2. Java 8 stream api and lambda
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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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Q1. Sql is the most important , Focus on Joins ,Sub query and Sql basics
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Q2. Joining tables with different joins
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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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Basic linear searching algorithm

Q1. Basic day to day work related
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Q1. Lots of technical questions over automation, javascript overview questions, coding questions over string and array. (Not hard one)
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Q2. General manual testing like what is regression smoke sanity BVA.
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Q3. API testing question like path variable , response code ,put vs patch
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Q1. Second round will be tough, if your interviewer is karan vaid then you have to deep into javascript.
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Q2. He will ask deep questions on javascript on promise , async await , callbacks .
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Q3. Cookies, event loops . Mainly go through namaste js series in youtube. You will be able to answer his questions 80 percent.
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Q1. Find wheteher the given number is fibonacci or not
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To determine if a number is a Fibonacci number or not.
• Check if 5*n^2 + 4 or 5*n^2 - 4 is a perfect square

• If either of the above conditions is true, the number is a Fibonacci number

• Example: 5 is a Fibonacci number as 5*5 - 4 = 21 which is a perfect square
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Q2. How will you add caching to improve fast response
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Implement caching by storing frequently accessed data in memory to improve response time.
• Identify frequently accessed data that can be cached

• Choose an appropriate caching strategy (e.g. in-memory caching, distributed caching)

• Implement caching mechanisms such as Redis or Memcached

• Set expiration policies for cached data to ensure freshness

• Monitor cache performance and adjust as needed
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