India Builders Interview Questions and Answers

There are four types of inheritance in Java: single, multilevel, hierarchical, and multiple. Interfaces in Java are used to achieve abstraction and multiple inheritance.

• Types of inheritance in Java: single (one class extends one class), multilevel (class extends another class which extends another class), hierarchical (multiple classes extend one class), multiple (one class implements multiple interfaces)

• Interfaces in Java are like abstract classes with only abstract methods....read more

Structured databases have a well-defined schema, unstructured databases have no predefined schema, and semi-structured databases have some organizational properties but do not enforce a strict schema.

• Structured databases have a well-defined schema with tables, rows, and columns (e.g. SQL databases)

• Unstructured databases store data without a predefined schema, allowing for flexibility in data types and structures (e.g. NoSQL databases)

• Semi-structured databases have some organi...read more

SQL command to retrieve data from a database table

• Use SELECT statement to retrieve data

• Specify the columns to retrieve after SELECT keyword

• Specify the table name after FROM keyword

• Use WHERE clause to add conditions for data retrieval

I have experience working on projects involving the development of models using programming languages such as Python and R.

• Developed predictive models using Python libraries like scikit-learn and TensorFlow

• Utilized R for statistical analysis and data visualization

• Implemented machine learning algorithms to optimize business processes

A class is a blueprint for creating objects, while an object is an instance of a class.

• A class defines the properties and behaviors of objects.

• An object is a specific instance of a class.

• Classes can have attributes (variables) and methods (functions).

• Objects can interact with each other by calling methods on each other.

• Example: Class 'Car' can have attributes like 'color' and 'model', while an object 'myCar' can be an instance of the 'Car' class.

OOPs in Java stands for Object-Oriented Programming, a programming paradigm based on the concept of objects.

• OOPs in Java focuses on creating objects that interact with each other to solve problems

• It involves concepts like classes, objects, inheritance, polymorphism, and encapsulation

• Example: Creating a class 'Car' with properties like 'make', 'model', and methods like 'drive', 'stop'

LTIMindtree is a global technology consulting and services company, specializing in digital transformation and IT services.

• Founded in 1999 as the IT division of Larsen & Toubro

• Acquired by Mindtree in 2019, becoming LTIMindtree

• Offers services in areas such as cloud, data analytics, AI, and cybersecurity

• Has a strong focus on sustainability and social responsibility

• Serves clients across various industries including banking, healthcare, and retail

DBMS is a software system that manages databases, while RDBMS is a type of DBMS that stores data in a structured format using tables.

• DBMS stands for Database Management System, while RDBMS stands for Relational Database Management System.

• DBMS allows users to create, retrieve, update, and manage data in a database, while RDBMS uses a structured query language (SQL) to interact with the database.

• RDBMS enforces referential integrity constraints between tables, while DBMS may not...read more