TCS Research Intern Interview Questions and Answers

There are three types of machine learning: supervised, unsupervised, and reinforcement learning.

• Supervised learning involves labeled data and predicting outcomes based on that data.

• Unsupervised learning involves finding patterns in unlabeled data.

• Reinforcement learning involves an agent learning to make decisions based on rewards and punishments.

• Examples of supervised learning include image classification and spam filt...read more

OOPs stands for Object-Oriented Programming. It is a programming paradigm that uses objects to design applications.

• OOPs is based on the concept of classes and objects

• It focuses on encapsulation, inheritance, and polymorphism

• It helps in creating modular, reusable, and maintainable code

• Examples of OOPs languages are Java, C++, Python, etc.

SDLC stands for Software Development Life Cycle, a process used to design, develop, and maintain software.

• SDLC is a structured approach to software development

• It involves several phases such as planning, analysis, design, implementation, testing, and maintenance

• Each phase has its own set of activities and deliverables

• SDLC helps ensure that software is developed efficiently, on time, and within budget

• Examples of SDLC mo

Swap two numbers with and without temporary variable

• Without temporary variable: Use addition and subtraction

• With temporary variable: Use a third variable to store the value of one of the numbers

• Example without temporary variable: a=5, b=7; a=a+b; b=a-b; a=a-b;

• Example with temporary variable: a=5, b=7; temp=a; a=b; b=temp;

Faced challenges in a project and how tackled them

• One of the challenges was managing conflicting priorities among stakeholders. I tackled it by setting clear expectations and priorities, and communicating regularly with all parties involved.

• Another challenge was dealing with unexpected technical issues. I tackled it by conducting thorough research, consulting with experts, and testing different solutions until the issu...read more

Encapsulation is the process of hiding implementation details and exposing only necessary information to the user.

• Encapsulation is a fundamental concept in object-oriented programming.

• It helps in achieving data abstraction and information hiding.

• It allows for better control over the data and prevents unauthorized access.

• Encapsulation is implemented using access modifiers such as public, private, and protected.

• For examp...read more

Dialect in Hibernate is a configuration setting that defines the type of database used.

• Dialect is responsible for generating SQL statements specific to the database.

• It handles the differences in SQL syntax and data types between different databases.

• Examples of dialects include MySQLDialect, OracleDialect, and PostgreSQLDialect.

Interface defines the contract between two entities while Abstraction hides the implementation details.

• Interface is a blueprint of a class that defines the methods and properties that a class must implement.

• Abstraction is a way of hiding the implementation details of a class and exposing only the necessary details to the user.

• Interface is used for achieving multiple inheritance in Java.

• Abstraction is used for achieving...read more