Wipro Module Lead Interview Questions, Process, and Tips

Standard quantitative questions accompanied by logical reasoning and related topics.

Q1. Asked about my projects.
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Q2. What are the basic Object-Oriented Programming (OOP) concepts, including polymorphism and inheritance?
Ans. 
OOP concepts include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Objects of different classes can be treated as objects of a common superclass.

• Abstraction: Hides complex implementation details and only shows the necessa
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Q3. Can you explain React, how it functions, and the related concepts?
Ans. 
React is a JavaScript library for building user interfaces.
• React allows developers to create reusable UI components.

• It uses a virtual DOM for efficient rendering.

• React uses a declarative approach to define how the UI should look based on the application state.

• It supports server-side rendering for improved performance.

• React can be used with other libraries like Redux for state management.
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Q4. About my final year project and how would you improve it?
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Q1. Can you introduce yourself and provide some information about your family?
Ans. 
I am a software engineer with a passion for coding and problem-solving. I come from a close-knit family with supportive parents and siblings.
• Software engineer with coding and problem-solving skills

• Close-knit family with supportive parents and siblings
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Q2. What are your strengths and weaknesses, and how are you addressing your weaknesses?
Ans. 
My strengths include problem-solving and teamwork, while my weaknesses are time management and public speaking. I am addressing my weaknesses by taking time management courses and practicing public speaking.
• Strengths: problem-solving, teamwork

• Weaknesses: time management, public speaking

• Addressing weaknesses: taking time management courses, practicing public speaking
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Q1. What's return statement in java
Ans. 
The return statement in Java is used to explicitly return a value from a method.
• The return statement is followed by the value that is to be returned from the method.

• It can only be used within a method body.

• Once a return statement is executed, the control is transferred back to the caller of the method.
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Q2. What are get set methods
Ans. 
Get set methods are used in object-oriented programming to retrieve and update the values of private variables.
• Get methods are used to retrieve the value of a private variable.

• Set methods are used to update the value of a private variable.

• They are commonly used to ensure data encapsulation and control access to class variables.
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Q3. What is the difference between an interface and an abstract class in Java?
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Interface is a contract specifying methods that a class must implement, while abstract class can have both implemented and abstract methods.
• Interface cannot have method implementations, while abstract class can have both implemented and abstract methods.

• A class can implement multiple interfaces but can only extend one abstract class.

• Interfaces are used to achieve multiple inheritance in Java.

• Abstract classes can have c...read more
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Q4. How do you implement a stack in Java using an array?
Ans. 
Implement a stack in Java using an array
• Create an array to store the elements of the stack

• Keep track of the top of the stack using an index variable

• Implement push() to add elements to the stack

• Implement pop() to remove elements from the stack

• Example: String[] stackArray = new String[10];
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Q5. What is the difference between a HashMap and a TreeMap in Java?
Ans. 
HashMap is unordered and uses hashing to store key-value pairs, while TreeMap is ordered and uses a red-black tree to store key-value pairs.
• HashMap uses hashing to store key-value pairs, allowing for O(1) time complexity for get and put operations.

• TreeMap uses a red-black tree to store key-value pairs, maintaining order based on the keys.

• HashMap does not guarantee any specific order of elements, while TreeMap maintains...read more
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It was good . 3 question

It was hard, 5 questions

Q1. Face to Face interview .
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Q2. Java basic question
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Q3. Java question directly start with hard coding question
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Q4. Not asking self introduction or anything related past company
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Q1. NA i am not selected
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Q1. 1) OOPS in java, and told to explain abstraction, encapsulation, inheritance with practical code 2) Exception handling(globally), Authentication and authorization 3) SOLID principles and factory design pat...read more
Ans. 
Interview questions for Software Engineer position covering OOPS concepts, exception handling, SOLID principles, Java 8 features, and Streams.
• Abstraction in OOPS: Hiding implementation details. Example: Abstract class Shape with method draw().

• Encapsulation in OOPS: Bundling data and methods that operate on the data. Example: Class Employee with private fields and public getters/setters.

• Inheritance in OOPS: Reusing code...read more
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Q2. 1) Advantage of springboot over spring 2) Tell me all the anotations you know in spring 3) What are CRUD operations, write controller layer and use validating annotations like @NotNull, @valid etc. how to ...read more
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The interview questions cover various topics related to Spring framework, REST vs SOAP, JPA repository, Feign client, circuit breaker, and Spring Security.
• Spring Boot provides a simpler and faster way to set up and run Spring applications compared to traditional Spring.

• Common annotations in Spring include @Controller, @Service, @Repository, @Autowired, @Component, @RequestMapping, @GetMapping, @PostMapping, @PutMapping...read more
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Q3. 1) ACID properties 2) DBMS commands 3) inner queries 4) Joins 5) S3 bucket congif and how to handle file and upload and retrieve in s3 6) Ci/Cd basic flow and docker explaination
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