Mindtree Solutions Senior Software Engineer Interview Questions and Answers

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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Aptitude test with some logical reasoning questions with time constraints

Q1. OOPS concept and also SQL related questions
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Q1. Manager round with the senior manager
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Q1. HR discussion with all the details
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Q1. Are you familiar with Object-Oriented Programming (OOP)?
Ans. 
Yes, Object-Oriented Programming (OOP) is a programming paradigm based on the concept of objects.
• OOP focuses on creating objects that contain both data and methods to manipulate that data.

• Key principles of OOP include encapsulation, inheritance, and polymorphism.

• Examples of OOP languages include Java, C++, and Python.
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Q2. What is the definition of a constant in PHP?
Ans. 
A constant in PHP is a variable whose value cannot be changed during the script execution.
• Constants are defined using the define() function in PHP.

• Constants are case-sensitive by default.

• Constants can be accessed globally.

• Example: define('PI', 3.14);
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General aptitude test

Q1. Basics of Python
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Q2. Basics of SQL and SQL query questions
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Q1. Detailed discussion about previous projects
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Q2. Python and SQL questions
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Easy round anyone with basic maths can clear the round.

The topic given to us is online education system,and the round was easy to clear.

Q1. Call by value vs call by reference
Ans. 
Call by value passes a copy of the variable, while call by reference passes the actual variable.
• Call by value: changes to the parameter inside the function do not affect the original variable.

• Call by reference: changes to the parameter inside the function affect the original variable.

• Example: Call by value - int x = 5; func(x); // x remains 5. Call by reference - int x = 5; func(&x); // x changes to the value set i
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I applied for java developer role. I have 1 question paper I written the test . Then they will check and conduct for second round.

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