Tech Mahindra Associate Software Engineer Interview Questions, Process, and Tips

Actually it's a mixture of Apptitude, coding and tecnical test. And exam time is too much it's 4 hr 20 min.

Yaa it's coding test mainly. 2 code are their almost 1.30 hr and some coding related question. Total exam time is 3hr.

Q1. Yes it's the 3rd round, the techincal round. They asked some question oh sorry not some but i will provided some because some of i forget.
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Q2. 1) What is NullPointerExceprion and give me a example?
Ans. 
NullPointerException is a runtime exception that occurs when a program tries to access or use an object reference that is null.
• It is a common exception in Java programming.

• It is thrown when a program attempts to use an object reference that has not been initialized.

• It indicates that there is an attempt to access or invoke a method on an object that is null.

• Example: String str = null; str.length();
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Q3. 2) Can you call the base class method without creating an instance?
Ans. 
Yes, by using the super() method in the derived class.
• super() method calls the base class method

• Derived class must inherit from the base class

• Example: class Derived(Base): def method(self): super().method()
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Q4. 3) What is call by value and call hy refarance?
Ans. 
Call by value and call by reference are two ways of passing arguments to a function.
• Call by value passes a copy of the argument value to the function.

• Call by reference passes a reference to the memory location of the argument.

• Call by value is used for simple data types like int, float, etc.

• Call by reference is used for complex data types like arrays, structures, etc.
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Q5. 4) How does C++ support Polymorphism?
Ans. 
C++ supports polymorphism through virtual functions and inheritance.
• Polymorphism allows objects of different classes to be treated as if they were of the same class.

• Virtual functions are declared in the base class and overridden in the derived class.

• Dynamic binding is used to determine which function to call at runtime.

• Examples include function overriding, templates, and operator overloading.
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Q6. 5) What are access specifiers and what is their significance?
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Q1. HR round was going smooth. Same common hr question and also some question are different, I am sure you guys are also ans this. One thing now TechM interview process are changed, you guys can search in go...read more
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Q1. Swap two variables, prime number
Ans. 
To swap two variables, use a temporary variable to store one value before swapping them.
• Create a temporary variable to store one of the values

• Assign the first variable to the temporary variable

• Assign the second variable to the first variable

• Assign the temporary variable to the second variable
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Q2. Based on Linux, SQL and other
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Q3. What are pointers
Ans. 
Pointers are variables that store memory addresses of other variables or functions.
• Pointers are used to access and manipulate memory directly.

• They are commonly used in programming languages like C and C++.

• Example: int *ptr; // declaring a pointer to an integer variable
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Q4. Commands on SQL and Linux
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Q5. Questions related to HR
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Q1. Aptitude test and general knowledge
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Q2. Coding exam and mcq question
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General aptitide and logical reasoning

Q1. Reading the displayed statements
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Q2. Hearing and answering to the questions
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Q3. Speak on a topic for 1 min
Ans. 
The impact of artificial intelligence on society
• AI has revolutionized various industries such as healthcare, finance, and transportation

• Ethical concerns surrounding AI, such as job displacement and privacy issues

• Potential benefits of AI, such as improved efficiency and decision-making

• Examples like self-driving cars, virtual assistants, and medical diagnosis systems
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Q1. Whats oops concept?
Ans. 
Object-oriented programming paradigm focusing on objects and classes.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.
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Q2. Why you prefer java?
Ans. 
I prefer Java for its platform independence, strong community support, and extensive libraries.
• Platform independence allows Java code to run on any device with a Java Virtual Machine (JVM)

• Strong community support ensures quick resolution of issues and access to resources

• Extensive libraries provide pre-built solutions for common programming tasks

• Java is widely used in enterprise applications, web development, and mobile
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Q3. Explain about your projects?
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Q4. Most of the questions were from my resume, he scanned my resume through his eyes, and started directly with my projects?
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Q5. What do you mean by ML?
Ans. 
ML stands for Machine Learning, a subset of artificial intelligence that focuses on the development of algorithms and models that allow computers to learn from and make predictions or decisions based on data.
• ML involves training algorithms to recognize patterns in data and make decisions or predictions without being explicitly programmed.

• Common techniques in ML include supervised learning, unsupervised learning, and re...read more
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Q1. Tell me about yourself that is not mentioned in your resume?
Ans. 
I am an avid hiker and have climbed several mountains in my free time.
• I enjoy outdoor activities like hiking and camping

• I have climbed Mount Kilimanjaro and Mount Rainier

• I find solace in nature and often go on solo hikes
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Q2. Why we should prefer you over other candidates?
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Q3. Why tech mahindra?
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Q4. Are comfortable with Pan India?
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Q5. How do you work in teams?
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Q6. How do you tackle any problem thats faced by you?
Ans. 
I approach problems methodically by breaking them down into smaller tasks, researching possible solutions, and seeking input from colleagues.
• Identify the root cause of the problem

• Break down the problem into smaller, manageable tasks

• Research possible solutions and best practices

• Seek input and feedback from colleagues or mentors

• Implement a solution and test it thoroughly

• Iterate on the solution if necessary
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