Nirvaat Internet Interview Questions and Answers

Q1. Are you familiar with Object-Oriented Programming (OOP)?
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Q2. What is the definition of a constant in PHP?
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Q1. What is the subject of SAP Material Management?
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Q1. Tell us about yourself
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Q2. How much do you know about inspection and what would you refer for doing inspection work
Ans. 
I have a strong understanding of inspection processes and recommend thorough documentation, attention to detail, and adherence to regulations.
• Understanding of inspection procedures and protocols

• Attention to detail in identifying issues and discrepancies

• Thorough documentation of findings and recommendations

• Adherence to regulations and standards

• Utilization of appropriate tools and equipment for inspections
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HashMap vs HashTable difference
Program for fibonnaci series

Q1. About selenium project framework structure
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Q2. Explained about framework
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Q3. Created Maven project with TestNG pluggin
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It was good for first round questions was too easy and related to basic understanding regarding database and DSA.

Basic computer knowledge, English grammar

Q1. Tell me about yourself Common question
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Q2. Tell me about yourself
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Q3. Common topic we say about that topic
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Q4. Testing english knowledge
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Q1. Just observe how we work
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Q1. What is bias variance tradeoff in machine learning
Ans. 
Bias-variance tradeoff is the balance between underfitting and overfitting in machine learning models.
• Bias refers to error from erroneous assumptions in the learning algorithm, leading to underfitting.

• Variance refers to error from sensitivity to small fluctuations in the training set, leading to overfitting.

• The tradeoff involves finding the right level of model complexity to minimize both bias and variance.

• Regularizati...read more
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Q2. Explain your project
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Q3. Write a SQL code to find 2nd highest salary
Ans. 
SQL code to find 2nd highest salary
• Use the MAX() function to find the highest salary

• Use the WHERE clause to exclude the highest salary

• Order the salaries in descending order and limit the result to 1
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Q1. What is metaspace?
Ans. 
Metaspace is a memory space in Java that stores metadata about classes and methods.
• Metaspace replaces the permanent generation (PermGen) in Java 8 and later versions.

• It is used to store class metadata, such as class names, method names, field names, annotations, etc.

• Metaspace is dynamically allocated and resized by the JVM as needed.

• It helps prevent OutOfMemoryError caused by PermGen space exhaustion.
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