NTT Data Senior Associate Engineer Interview Questions and Answers

MCQ(Apti + computer)

Q1. Java new features in 8
Ans. 
Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to treat functionality as a method argument.

• Functional interfaces have a single abstract method and can be used with lambda expressions.

• Streams provide a way to work with sequences of elements and perform operations on them.

• Default methods allow interfaces to have method ...read more
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Q2. Difficulties faced in the current/previous project & how we resolved it
Ans. 
We faced challenges with communication and conflicting priorities, resolved through regular team meetings and clear task delegation.
• Lack of clear communication among team members

• Conflicting priorities leading to delays in project timeline

• Resolved by scheduling regular team meetings to discuss progress and issues

• Clear task delegation to ensure everyone knows their responsibilities
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Q3. What is OOPS
Ans. 
OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
• OOPS focuses on creating objects that contain data and methods to manipulate that data.

• Encapsulation, inheritance, and polymorphism are key principles of OOPS.

• Examples of OOPS languages include Java, C++, and Python.
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Q4. What is Functional programming
Ans. 
Functional programming is a programming paradigm that treats computation as the evaluation of mathematical functions and avoids changing state and mutable data.
• Focuses on pure functions that do not have side effects

• Emphasizes immutability and avoids changing state

• Uses higher-order functions and function composition

• Commonly used languages include Haskell, Scala, and Clojure
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Q5. Difference between OOPS and functional programming
Ans. 
OOPS focuses on objects and classes, while functional programming focuses on functions and immutability.
• OOPS is based on the concept of objects and classes, allowing for encapsulation, inheritance, and polymorphism.

• Functional programming emphasizes on functions as first-class citizens, immutability, and avoiding side effects.

• OOPS is more suitable for complex, real-world applications with changing state, while functiona...read more
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Q6. Which framework I worked in Java
Ans. 
I have worked with the Spring framework in Java.
• Utilized Spring MVC for web development

• Implemented dependency injection with Spring IoC container

• Integrated Spring Security for authentication and authorization
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Q7. What all are the annotations that we use in Spring Boot & it's usage
Ans. 
Some common annotations used in Spring Boot are @RestController, @Autowired, @RequestMapping, @Service, @Component, @Repository.
• @RestController - Used to define a controller class in Spring MVC.

• @Autowired - Used for automatic dependency injection.

• @RequestMapping - Used to map web requests to specific handler methods.

• @Service - Indicates that a class is a service.

• @Component - Indicates that a class is a Spring component...read more
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Q1. Tell me about yourself, work experience & education
Ans. 
I am a dedicated professional with a strong educational background and diverse work experience.
• I have a Bachelor's degree in Business Administration from XYZ University.

• I have worked in various roles in marketing, sales, and customer service.

• I am proficient in Microsoft Office Suite and have excellent communication skills.

• I am a quick learner and thrive in fast-paced environments.

• I am passionate about continuous learni
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Q1. How to operate a operations
Ans. 
Operations can be operated by following established processes and procedures.
• Understand the goals and objectives of the operations

• Follow standard operating procedures

• Utilize technology and tools to streamline operations

• Monitor performance and make adjustments as needed
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Q2. How to do the handle a excel
Ans. 
Handling Excel involves organizing data, performing calculations, and creating visualizations.
• Use formulas and functions to perform calculations.

• Organize data into tables for easier manipulation.

• Create charts and graphs to visualize data.

• Use filters and sorting to analyze data efficiently.
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