Cognizant Associate Interview Questions and Answers

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
Answered by AI
Add your answer
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
Answered by AI
Add your answer
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.
Answered by AI
Add your answer
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
Answered by AI
Add your answer
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
Answered by AI
Add your answer
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
Answered by AI
Add your answer
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
Answered by AI
Add your answer

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...read more
Answered by AI
Add your answer

It's good because of students only

Q1. Basic Coding skills questions
Add your answer

Q1. Basic personality questions
Add your answer

Q1. What is pure vs impure pipes
Ans. 
Pure pipes maintain consistent output, while impure pipes can alter data or state, affecting reliability.
• Pure pipes always produce the same output for the same input, e.g., a function that returns a constant value.

• Impure pipes can produce different outputs for the same input, e.g., a function that relies on external state or variables.

• Pure pipes are easier to test and debug due to their predictable behavior.

• Impure pipe...read more
Answered by AI
Add your answer
Q2. Generics in typescript
Add your answer
Q3. Rxjs Operators- scenario based
Add your answer
Q4. Dependency injection in angular
Ans. 
Dependency Injection in Angular is a design pattern that allows for better code organization and testing by injecting dependencies into components.
• Angular uses a hierarchical dependency injection system, where services can be provided at different levels.

• To create a service, use the @Injectable() decorator, e.g., @Injectable({ providedIn: 'root' }) for a singleton service.

• Inject dependencies in a component's constructo...read more
Answered by AI
Add your answer

Asked reasoning question and more

Q1. Introduction of yourself and more
Add your answer
Q2. Explain opps concept in java
Ans. 
The OOPs concept in Java stands for Object-Oriented Programming, which focuses on creating objects that interact with each other.
• OOPs concept involves the use of classes and objects to model real-world entities.

• It includes principles like inheritance, encapsulation, polymorphism, and abstraction.

• Example: Creating a class 'Car' with properties like 'make', 'model', and methods like 'drive' and 'stop'.
Answered by AI
Add your answer