NTT Data Fullstack Developer Lead Interview Questions and Answers

Q1. Angular frontend component,dat passing, .net core ,design paterrns
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Q1. Demonstrate Function Overriding.
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Q2. Linq query with order by
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Q3. What is Out Parameter with example
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Q4. Authentication and autherization, JWT Tocken
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Q5. Reflection in C#
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Q1. JVM related Questions
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Q2. Angular features
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Q3. React Features and how to deploy
Ans. 
React is a JavaScript library for building user interfaces. Deployment can be done using various methods.
• React features include virtual DOM, component-based architecture, JSX syntax, and state management.

• Deployment can be done using tools like Heroku, Netlify, AWS, or manually by building and serving static files.

• Continuous integration and deployment (CI/CD) pipelines can be set up to automate the deployment process.

• Se...read more
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Q1. What is Dependency Injection
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Dependency Injection is a design pattern in which components are given their dependencies rather than creating them internally.
• In Dependency Injection, the dependencies of a class are injected from the outside, typically through constructor injection or setter injection.

• This helps in achieving loose coupling between classes, making the code more modular and easier to test.

• Example: Spring Framework uses Dependency Injec...read more
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Q2. How is exception handled in Inheritance
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Exceptions in inheritance are handled using try-catch blocks in the subclass.
• Inherited methods can throw exceptions that need to be caught in the subclass.

• Subclass can override superclass methods and handle exceptions differently.

• Superclass methods can declare checked exceptions that subclasses must handle.

• Exceptions can be rethrown or wrapped in a new exception in the subclass.
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Q3. Define a immutable class
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Immutable class is a class whose instances cannot be modified after creation.
• Immutable classes have all fields as final and private.

• Immutable classes do not have any setter methods.

• Examples of immutable classes in Java are String, Integer, and LocalDate.
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Q1. Different design pattern and how you have implement in projects
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I have implemented design patterns like Singleton, Factory, and Observer in various projects.
• Implemented Singleton pattern to ensure only one instance of a class exists.

• Utilized Factory pattern to create objects without specifying the exact class of object that will be created.

• Used Observer pattern to establish a one-to-many dependency between objects, so that when one object changes state, all its dependents are notif
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Q2. How to improve the performance of a running application.
Ans. 
To improve the performance of a running application, consider optimizing code, database queries, caching, and server resources.
• Optimize code by identifying and fixing bottlenecks, reducing unnecessary loops, and improving algorithms.

• Optimize database queries by using indexes, avoiding unnecessary joins, and limiting the amount of data retrieved.

• Implement caching mechanisms to store frequently accessed data in memory, r...read more
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Q1. Questions from, Architecture, C#, LINQ, SQL, API, Routing, Authentications, Angular framework structure, data pass between parent and client, Lifecycle Hooks, .Net core vs .Net framework, Middleware, micr...read more
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Just some basic questions.

Total 6 questions. 4 basic and 2 advanced.

Q1. Write a program for Fibonacci?
Ans. 
Program to generate Fibonacci series using Java
• Use a loop to generate Fibonacci series

• Start with 0 and 1 as the first two numbers

• Add the previous two numbers to get the next number

• Repeat the process until the desired number of terms
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Q2. Write a code for inheritance ?
Ans. 
Inheritance in Java allows a class to inherit properties and behaviors from another class.
• Create a parent class with common properties and methods

• Create a child class that extends the parent class

• Child class can access parent class properties and methods
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Coding is little difficult so please go through logic

Q1. The interview is based on the skills you mentioned in resume
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Q2. What is the use of Java
Ans. 
Java is a versatile programming language used for developing a wide range of applications, from web and mobile apps to enterprise systems.
• Java is used for developing web applications, mobile applications, desktop applications, and enterprise systems.

• It is commonly used in backend development for server-side programming.

• Java is also used in game development, scientific applications, and big data processing.

• It is platfor...read more
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Q1. About company and your skills
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Q2. Java full stack developet
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