TMF Group Senior Software Developer Interview Questions and Answers

Q1. Mutable and Non-Mutable data type.
Ans. 
Mutable data types can be changed after creation, while non-mutable data types cannot be changed.
• Mutable data types in Python include lists and dictionaries.

• Non-mutable data types in Python include tuples and strings.

• Changing a mutable data type will modify the original object, while changing a non-mutable data type will create a new object.
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Q2. Write code for decorator.
Ans. 
A decorator is a design pattern that allows behavior to be added to individual objects, either statically or dynamically, without affecting the behavior of other objects.
• Decorators are functions that take another function and extend its behavior without explicitly modifying it.

• They are commonly used in Python to add functionality to existing functions or classes.

• Example: Adding logging to a function using a decorator.
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Q1. Basic Questions on project experience Designing a Image storage system Coding: How to find if 2 arrays are equal Coding: Group employee data by department Working of Kafka
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DP graphs strings it was good

Q1. Reverse a linkded list
Ans. 
Reverse a linked list by changing the direction of pointers
• Start with three pointers: current, previous, and next

• Iterate through the list, updating pointers to reverse the direction

• Return the new head of the reversed list
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Q2. Print fibonacci series
Ans. 
The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
• Start with two variables initialized to 0 and 1

• Loop through desired number of iterations, adding the previous two numbers to get the next number

• Print or store each number in the series
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Q1. On demand video assessment that include questions to answer.
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Q2. Games designed to test different ability.
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Q1. How do you define clean code?
Ans. 
Clean code is well-organized, easy to read, and maintainable code that follows best practices.
• Clean code is easy to read and understand by other developers.

• It follows consistent naming conventions for variables, functions, and classes.

• Clean code is well-organized with proper indentation and spacing.

• It avoids unnecessary complexity and duplication.

• Clean code is modular and follows the single responsibility principle.

• Exa...read more
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Q2. How to better test your code?
Ans. 
To better test your code, use a combination of unit tests, integration tests, regression tests, and automated testing.
• Write unit tests to test individual components or functions in isolation.

• Perform integration tests to test how different components work together.

• Implement regression tests to ensure that new code changes do not break existing functionality.

• Utilize automated testing tools to run tests quickly and effici...read more
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It continues for 15 mins

They asked general aptitude questions ones you can easily practice from indiabix

Be prepared with medium level DSA questions. They touched upon topics like trees, DP, hashing etc.

Q1. They had a total of two technical rounds where one was with the manager you will be working under. The touched upon some puzzles and reasoning questions. The questions will mostly be around you resume so m...read more
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Q1. General HR questions
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Logical,quants,coding

Q1. Java,sql,testing,sdlc
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Q2. What is method overriding?
Ans. 
Method overriding is a feature in object-oriented programming where a subclass provides a specific implementation of a method that is already provided by its parent class.
• In method overriding, the method in the subclass has the same name, return type, and parameters as the method in the parent class.

• The purpose of method overriding is to provide a specific implementation of a method in the subclass that is different fr...read more
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Q3. What is exception handling in java?
Ans. 
Exception handling in Java is a mechanism to handle runtime errors and prevent program crashes.
• Exceptions are objects that represent errors or unexpected events during program execution.

• Java provides try, catch, and finally blocks to handle exceptions.

• try block contains the code that may throw an exception, catch block handles the exception, and finally block is executed regardless of an exception.

• Example: try { // cod...read more
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Q1. Normal questions
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Q2. Why you want to join our company?
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