Wipro Interview Questions, Process, and Tips

Berribot test with AI by asking questions on various application level and providing a code snippet to find the longest common prefix in a string array.

Q1. Introduction on self
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Q2. What are the key features of Java 8 that facilitate coding with streams?
Ans. 
Java 8 features like lambda expressions and functional interfaces make coding with streams easier and more efficient.
• Lambda expressions allow for concise and readable code when working with streams.

• Functional interfaces like Predicate, Function, and Consumer can be used with streams to perform operations on elements.

• Stream API provides methods like map, filter, and reduce for processing collections of data in a declara...read more
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Q3. What is the purpose of Optional in Java 8, and which methods are commonly used with it?
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Optional in Java 8 is used to represent a value that may or may not be present, reducing the chances of NullPointerException.
• Optional is used to avoid NullPointerException by explicitly stating whether a value is present or not.

• Commonly used methods with Optional include isPresent(), get(), orElse(), orElseGet(), and map().

• Example: Optional<String> optionalString = Optional.ofNullable("Hello");
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Q4. What is multiple inheritance, and how is it achieved?
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Multiple inheritance is a feature in object-oriented programming where a class can inherit attributes and methods from more than one parent class.
• Allows a class to inherit from multiple parent classes, combining their attributes and methods

• Can lead to the diamond problem where ambiguity arises if two parent classes have a method with the same name

• Achieved in languages like C++ using virtual inheritance or interfaces in
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Q5. What are the steps to write an immutable class?
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Steps to write an immutable class
• Make the class final so it cannot be extended

• Make all fields private and final

• Do not provide setter methods for the fields

• Ensure that any mutable objects within the class are also immutable

• If a mutable object must be returned, make a deep copy before returning it
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Q6. Design patterns :Singleton and factory
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Q7. What are the different types of dependency injection?
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Types of dependency injection include constructor injection, setter injection, and interface injection.
• Constructor injection: Dependencies are provided through a class's constructor.

• Setter injection: Dependencies are provided through setter methods.

• Interface injection: Dependencies are provided through an interface method.
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Q8. @primary vs @qualifier
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In Spring framework, @primary is used to specify the primary bean to be autowired, while @qualifier is used to specify a specific bean to be autowired.
• Use @Primary when there are multiple beans of the same type and you want to specify the primary one to be autowired.

• Use @Qualifier when you want to specify a specific bean to be autowired by its name.

• Example: @Primary annotation can be used on a bean definition to mark i...read more
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Q9. What is transaction management in Spring Boot applications?
Ans. 
Transaction management in Spring Boot ensures data integrity by managing database transactions.
• Spring Boot uses @Transactional annotation to manage transactions

• It ensures that all operations within a transaction are completed successfully or rolled back if an error occurs

• Transactions can be managed programmatically using TransactionTemplate

• Supports different transaction isolation levels like READ_COMMITTED, REPEATABLE_
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Q10. What are the different isolation levels in transactions and how do propagation types work?
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Isolation levels in transactions determine the degree to which transactions are isolated from each other. Propagation types define how transactions are propagated between different components.
• Isolation levels include READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, and SERIALIZABLE.

• Propagation types include REQUIRED, REQUIRES_NEW, SUPPORTS, MANDATORY, and NEVER.

• Isolation levels control the visibility of changes made ...read more
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Q11. What are the different design patterns used in microservice architecture?
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Design patterns in microservice architecture help in solving common design problems and improving scalability, maintainability, and flexibility.
• Service Registry pattern - used for service discovery and registration

• Circuit Breaker pattern - used for fault tolerance and resilience

• API Gateway pattern - used for routing and load balancing

• Saga pattern - used for managing distributed transactions

• Event Sourcing pattern - used...read more
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Q12. How does inter-service communication work in microservices?
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Inter-service communication in microservices involves using protocols like HTTP, gRPC, or messaging queues.
• Microservices communicate with each other through APIs using protocols like HTTP or gRPC.

• Message queues like RabbitMQ or Kafka can be used for asynchronous communication between services.

• Service discovery tools like Consul or Eureka help services locate each other dynamically.

• API gateways can be used to manage and...read more
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Q13. How does fault tolerance work in microservices?
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Fault tolerance in microservices ensures system reliability by handling failures gracefully.
• Microservices architecture breaks down applications into smaller, independent services.

• Each microservice is designed to be resilient to failures and can continue to operate even if one service fails.

• Fault tolerance is achieved through redundancy, monitoring, and graceful degradation.

• Examples of fault tolerance mechanisms include...read more
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Q14. How does Apache Kafka work?
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Apache Kafka is a distributed streaming platform that allows for the publishing and subscribing to streams of records.
• Apache Kafka is designed to be highly scalable and fault-tolerant.

• It uses a distributed commit log to store messages.

• Producers publish messages to topics, and consumers subscribe to topics to receive messages.

• Kafka can be used for real-time stream processing, data pipelines, and event sourcing.

• It provid...read more
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Q15. What is the difference between RestTemplate and Feign Client?
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RestTemplate is a synchronous client for making HTTP requests, while Feign Client is a declarative HTTP client that simplifies making API calls.
• RestTemplate is part of the Spring framework and requires manual configuration for each request.

• Feign Client is a declarative client that uses annotations to define API endpoints and parameters.

• RestTemplate is synchronous, blocking the calling thread until the response is recei...read more
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Q1. General managerial questions focusing on projects worked as well as testing and deployment strategies used
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Q1. General managerial questions
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Q1. Normal HR Questions like why leaving job ,notice period ,expectations
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Trips for cracking interview

Q1. For example how to replay for all questions
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Q2. Different questions for all types
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Q3. Interviews easily cracking trips
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Q4. How to get good job in software
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Q5. How to get job
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Standardized assessment that evaluate a person abilities, skills and potential

Programming challenge that assesses a candidate coding skills and problems-solving ability.

Structured conversation where participants share ideas and perspective

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Details analysis of a real world situation that can be used to gain insight and generalization

Q1. Tell me about yourself.
Ans. 
Experienced program/project manager with a background in leading cross-functional teams and delivering successful outcomes.
• Over 10 years of experience in program/project management

• Skilled in leading cross-functional teams to achieve project goals

• Proven track record of delivering successful outcomes on time and within budget

• Strong communication and stakeholder management skills

• Certified Project Management Professional (
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Q2. What is your strength and weaknesses ?
Ans. 
My strength is my ability to communicate effectively and my weakness is that I can be overly detail-oriented.
• Strength: Effective communication skills - able to convey information clearly and concisely

• Weakness: Overly detail-oriented - sometimes get caught up in minor details and lose sight of the bigger picture
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Q3. Why are you interested in this job?
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I am passionate about leading projects and programs to success, and I am excited about the opportunity to make a positive impact in this role.
• I have a strong track record of successfully managing projects and programs in my previous roles.

• I am eager to take on new challenges and contribute my skills and expertise to drive results.

• I am drawn to the mission and goals of this organization and believe that my background al
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Q1. What programming language are you most familiar with?
Ans. 
I am most familiar with Python programming language.
• Python is known for its simplicity and readability, making it a popular choice for beginners and experienced programmers alike.

• It is widely used in various fields such as web development, data analysis, artificial intelligence, and scientific computing.

• Some popular libraries and frameworks in Python include Django, Flask, NumPy, and TensorFlow.
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Q2. What is features of c programming language?
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C programming language features include portability, efficiency, flexibility, and low-level access to memory.
• Portability: C programs can be run on different platforms with minimal changes.

• Efficiency: C is a fast and efficient language, making it suitable for system programming.

• Flexibility: C allows for low-level manipulation of hardware and memory.

• Low-level access to memory: C provides direct access to memory addresses...read more
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Q1. Tell me about yourself
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Experienced project manager with a background in IT and a passion for delivering successful projects on time and within budget.
• Over 5 years of experience in project management

• Strong background in IT industry

• Proven track record of delivering projects on time and within budget

• Excellent communication and leadership skills

• Certified in project management (e.g. PMP, PRINCE2)
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Q2. Why should we hire you
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I have a proven track record of successfully managing complex projects and delivering results on time and within budget.
• I have strong leadership skills and can effectively motivate and manage teams to achieve project goals.

• I am highly organized and detail-oriented, ensuring that all aspects of a project are carefully planned and executed.

• I have excellent communication skills, allowing me to effectively collaborate with...read more
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Q3. What are your strength
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My strengths include strong communication skills, excellent problem-solving abilities, and a proven track record of successful project management.
• Strong communication skills: I am able to effectively communicate with team members, stakeholders, and clients to ensure everyone is on the same page.

• Excellent problem-solving abilities: I am adept at identifying issues, analyzing data, and developing creative solutions to ov...read more
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Q1. Tell me about yourself self
Ans. 
Experienced project manager with a background in IT and a passion for delivering successful projects on time and within budget.
• Over 5 years of experience in project management

• Strong background in IT industry

• Proven track record of delivering projects on time and within budget

• Excellent communication and leadership skills

• Certified Project Management Professional (PMP)
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Q2. What are your weakness
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One of my weaknesses is that I can be overly critical of my own work.
• I tend to be a perfectionist and can spend too much time on minor details.

• I am working on improving my ability to delegate tasks and trust others to complete them.

• I have been taking steps to develop a more balanced perspective on my own performance.
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It had a 2 programs with easy and medium level of coding programs, please go through the recent interview problems asked in wipro

Q1. What is Object oriented programming
Ans. 
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• OOP focuses on creating objects that interact with each other to solve problems

• Encapsulation, inheritance, and polymorphism are key principles of OOP

• Examples of OOP languages include Java, C++, and Python
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Q2. What is multi threading
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Multi threading is a programming concept where multiple threads within a process execute independently to improve performance.
• Allows for concurrent execution of tasks within a single process

• Improves performance by utilizing multiple CPU cores

• Requires careful synchronization to avoid race conditions

• Examples include web servers handling multiple requests simultaneously
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Q3. Why is java not 100% oop
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Java is not 100% OOP because it supports primitive data types and static methods.
• Java has primitive data types like int, double, etc. which are not objects.

• Java allows static methods which do not require an instance of a class to be called.

• Java also has the concept of wrapper classes to convert primitive data types to objects.
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Q4. What are collections in java
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Collections in Java are classes and interfaces that provide a way to store and manipulate groups of objects.
• Collections provide dynamic data structures like List, Set, and Map.

• They offer methods to add, remove, and manipulate elements in the collection.

• Examples include ArrayList, LinkedList, HashSet, and HashMap.
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Q5. Internal working of hash map
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A hash map is a data structure that stores key-value pairs and uses a hash function to map keys to their corresponding values.
• Hash map uses a hash function to determine the index of the key-value pair in the underlying array.

• Collision resolution techniques like chaining or open addressing are used to handle situations where multiple keys hash to the same index.

• Hash maps typically have O(1) average time complexity for i...read more
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First round is technical MCQ question which is 15 and gives 10 min . So that cracked easly. Simple question

Q1. Mostly asked on .net core mvc and sql .net core : Dependency injection Singleton Addscoped Addtransient App.run Middleware And other basic Sql Some practical questions Finding top 5 employees whose...read more
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Q2. In c# Practical question like Sorting array using bubble sort Finding kth largest number from array Fibonacci series Multiple inheritance String manipulation Like counting chars count And some othet
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