D Light Energy Quality Assurance Quality Control Engineer Interview Questions and Answers

Q1. About yourself educational background family background
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Q1. Accounts and experience related questions
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Q1. Tell me about yourself, skills, previous positions
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Q2. No questions i have further
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Q1. Electrical Design Related
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Q1. Electrical power
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Q1. What is real dom and virtual dom in react
Ans. 
Real DOM is the actual representation of the HTML structure, while Virtual DOM is a lightweight copy used for efficient updates.
• Real DOM is slower as it directly manipulates the HTML structure.

• Virtual DOM is faster as it updates the lightweight copy and then syncs with the real DOM.

• React uses the Virtual DOM to minimize unnecessary re-rendering of components.

• Virtual DOM allows for efficient batch updates, improving per...read more
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There were 6 questions to be solved. 3 average and 3 tough questions.

Q1. Concepts ask in interview Java Threads Exception Collections Spring boot annotations Git
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Q1. A general conversations, regarding my experience, project.
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Q1. Write unit testing for adding two nimbers
Ans. 
Unit testing for adding two numbers
• Create a test case with two numbers and expected sum

• Call the function that adds two numbers

• Assert that the result matches the expected sum
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Q1. Explain challenge you faced in your last project
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Q1. Salary expectations
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Q1. As per the previous work experience
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Q1. Simply check fearless attitude towards the work
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Q1. Tell about yourself and past experience
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Q2. What's your current role and responsibilities
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