NTT Data Software Development Analyst Interview Questions and Answers

Q1. What are custom hooks in React, and what are their use cases? Additionally, can you provide an example of a custom hook that performs an API call and utilizes the retrieved data?
Add your answer
Q2. What is the difference between useMemo and useCallback in React?
Add your answer
Q3. What is the difference between class-based components and functional components in React?
Add your answer
Q4. How can you implement the lifecycle of a React component in a functional component?
Add your answer
Q5. What are the various state management techniques available in React?
Add your answer
Q6. What is the architecture of Redux, and what purposes do middlewares serve within it?
Add your answer
Q7. What is hoisting in JavaScript?
Add your answer
Q8. What is event bubbling in JavaScript?
Add your answer
Q9. What are block scope and function scope in JavaScript?
Add your answer
Q10. Have you had experience working with semantic tags in HTML?
Add your answer
Q11. What are the various methods for creating an object in JavaScript?
Add your answer
Q12. What are the differences between shallow copy and deep copy in JavaScript?
Add your answer
Q13. What will be the output of the following JavaScript code fragment: `const a; function test() { console.log(a); }; test();`?
Add your answer
Q14. How can you use CSS to arrange elements in a row and column layout?
Add your answer
Q15. Have you utilized CSS preprocessors, and if so, which ones?
Add your answer
Q16. If I have assigned different colors to an ID and a class and applied both to the same element, which color will be applied based on CSS specificity precedence?
Add your answer

An aptitude test is an assessment to measure a candidate mental aptitude/mental ability

Q1. Can you briefly Tell us about yourself?
Add your answer
Q2. What do you consider to be your strongest points?
Add your answer
Q3. Which programming languages do you use regularly in your work
Add your answer

A group discussion is a structured conversation in which participants share their ideas, perspectives, and solutions on a specific topic.

Q1. What motivates you to seek employment at Wipro?
Add your answer
Q2. What are your long-term career goals?
Add your answer

Assignment details refer to the specifics of an assignment, including any documents and/or emails or subsequent correspondence between the company and the client.

Average to easy difficulty level.

Q1. Java code of string manipulation
Add your answer
Q2. What is the Java code for various types of sorting algorithms?
Add your answer
Q3. Sql query and topics related to joins.
Add your answer

Q1. About yourself and family
Add your answer
Q2. What do you know about the company?
Add your answer
Q3. Can you provide examples of real-life scenarios where you handled conflicts with either a colleague or a manager?
Add your answer
Q4. What actions would you take if your manager does not approve your product idea, and how would you attempt to persuade them?
Add your answer

Q1. Run time polymorphism code
Add your answer
Q2. Linked list code
Add your answer
Q3. Deep copy shallow copy differences
Ans. 
Deep copy creates a new copy of an object with its own unique memory space, while shallow copy creates a new object that references the same memory locations as the original object.
• Deep copy duplicates all nested objects, while shallow copy only duplicates the references to nested objects.

• Deep copy ensures that changes to the copied object do not affect the original object, while shallow copy may lead to unintended sid...read more
Answered by AI
Add your answer

Q1. More deep questions about polymorphism code
Add your answer
Q2. Code for interchange of strings without strcpy
Ans. 
Use a loop to swap characters of two strings without using strcpy function.
• Create two arrays of characters to store the strings

• Use a loop to iterate through each character of the strings and swap them

• Ensure to handle cases where strings have different lengths
Answered by AI
Add your answer

Fundamentals of Data Structures and Algorithms, including SQL.

Q1. Basics of DSA and Algo and sql
Add your answer
Q2. Basics
Add your answer

Q1. Details on previus project
Add your answer
Q2. B
Add your answer

Q1. Basics of DSA and algo ..sql
Add your answer

Q1. List down Java 8 features and use case
Ans. 
Java 8 introduced several new features including lambda expressions, streams, and functional interfaces.
• Lambda expressions: Allow for more concise and readable code by enabling functional programming.

• Streams: Provide a way to work with collections of objects in a more functional style.

• Functional interfaces: Interfaces with a single abstract method, used to enable lambda expressions.

• Optional class: Helps to avoid null p...read more
Answered by AI
Add your answer
Q2. List down Spring boot annotation used
Ans. 
Spring boot annotations are used to simplify the development process by providing metadata to the Spring framework.
• 1. @SpringBootApplication - Main annotation to indicate the main class of a Spring Boot application.

• 2. @RestController - Annotation for RESTful web services.

• 3. @Autowired - Dependency injection annotation.

• 4. @GetMapping, @PostMapping, @PutMapping, @DeleteMapping - Annotations for mapping HTTP requests to c...read more
Answered by AI
Add your answer
Q3. Difference between String builder and String Buffer
Ans. 
String Builder is not synchronized and faster, while String Buffer is synchronized and slower.
• String Builder is not thread-safe, while String Buffer is thread-safe.

• String Builder is faster due to lack of synchronization, while String Buffer is slower due to synchronization.

• String Builder is recommended for single-threaded operations, while String Buffer is recommended for multi-threaded operations.
Answered by AI
Add your answer
Q4. What is String pool
Ans. 
String pool is a storage area in memory where strings are stored to optimize memory usage by reusing common strings.
• String pool helps in reducing memory usage by storing only one copy of each unique string.

• Strings created using double quotes are stored in the string pool.

• Strings created using new keyword are not stored in the string pool.
Answered by AI
Add your answer
Q5. Number of memory type have. like heap memory , stack
Ans. 
There are two main types of memory in a computer system: stack memory and heap memory.
• Stack memory is used for static memory allocation and is managed by the compiler. It is typically faster but limited in size.

• Heap memory is used for dynamic memory allocation and is managed by the programmer. It is slower but has a larger size.

• Examples: C programming language uses stack memory for function calls and heap memory for dy
Answered by AI
Add your answer