Wipro Interview Questions and Answers

Wipro Limited is an Indian IT company offering information technology, business process, and consulting services. M.H. Hasham Premji started it in 1945 as Western India Products, a company that made vegetable oil. Later in the 1960s, the company moved into the IT field and began offering software development services.

Today, Wipro has a global presence and operates in over 50 countries with over 200,000 employees. The company provides numerous services, including cloud services, application development and maintenance, data analytics, cybersecurity, and digital transformation. Wipro is known for its innovative and customer-centric approach and has won numerous awards for its work in the IT industry. As a result, we have gathered a series of Wipro interview questions with their corresponding answers. Reviewing these frequently asked questions and answers could be advantageous if you have an upcoming Wipro interview.

• Recruitment Process
• Eligibility Criteria
• Freshers
• Experienced
• Leadership Principles
• Tips
• FAQs
• Conclusion

Wipro Recruitment Process

The Wipro recruitment process may vary depending on the position being applied for, but generally, it follows a similar approach:

1. Online Application
2. Aptitude Test
3. Technical Interview
4. HR Interview
5. Background Check
6. Hired

Online Application

The first step in the recruitment process is to submit an online application through the online resource or Wipro career website (www.wipro.com/careers) and search for job openings that match your skills and experience.

Aptitude Test

Wipro's aptitude test is a standard assessment used by the company to evaluate job applicants' numerical, analytical, and reasoning abilities. The test typically includes questions on topics such as:

1. Quantitative Aptitude: This section tests a candidate's knowledge of basic mathematical concepts such as algebra, geometry, and trigonometry. The questions may also include data interpretation and analysis.
2. Logical Reasoning: This logical reasoning test measures a candidate's capacity for deductive and inductive problem-solving and logical thought.
3. Verbal Ability: The candidate's proficiency in communication abilities, comprehension, vocabulary, and English grammar is evaluated in this verbal ability round.

Aptitude test is typically conducted through online mode and may have a 60 to the 90-minute time limit.

Technical Interview

Candidates who pass the aptitude test may be invited for technical interview concepts like C, C++, Java, OOPs, Cloud, SQL, data structures, and more, where they will be tested on their knowledge and experience in the relevant field.

HR Interview

The final part of the recruitment process is the HR interview. This HR interview round assesses the applicant's professional and communication abilities, personal qualities, compatibility with the company's culture, and teamwork potential.

Background Check

Every new hire at Wipro company undergoes background verification checks based on their educational background, employment history, identification, Etc. 

Top 10 Wipro Frequently Asked Questions

1. What functions does an operating system have?
2. What are the different types of inheritance in Java?
3. Why is macro faster than functions in the C programming language?
4. What is a RESTful web service?
5. How would you improve a database query that runs slowly?
6. What is your knowledge on data analytics and machine learning?
7. Can you explain what microservices architecture is and what it does for you?
8. What virtualization is and what it does?
9. Why do we need preprocessing for CSS?
10. Write a program that uses bubble sort to sort the string.

Wipro Eligibility criteria

Wipro's eligibility requirements may differ depending on the position offered for the selected candidate, but in general, all the applied candidates for Wipro jobs must meet the following criteria

1. Educational Qualification: A bachelor's degree in engineering, science, business, the arts, or a related profession is required for applicants. A Bachelor's degree is usually minimally necessary for entry-level positions, although a Master's degree is often desirable.
2. Age Limit: Companies would only consider applicants between the ages of 18 and 28 for entry-level roles.
3. Minimum Work Experience: While most Wipro jobs do require at least some work experience, the company does provide entry-level roles for new college grads. While hiring for technical positions at Wipro, it's common practice to look for applicants with at least a few years of relevant job experience. For positions in management or leadership, the minimal amount of work experience is often between five and ten years.
4. Technical Skills: Depending on the job and where it is, the technical skills needed may be different. But if you want to work in a technical role at Wipro, you usually need to know programming languages, database management, operating systems, web development, and cloud computing.
5. Communication Skills: To build strong relationships with clients and coworkers, understand their needs, and do good work, you need to be able to communicate well. Good communication skills at Wipro may include being able to talk, write, listen actively, and work with other people.

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Wipro Technical Interview Questions for Freshers

1. What functions does an operating system have?

An operating system (OS) is a piece of software that runs and controls how a computer works. An operating system is one of the most important parts of a computer system. It controls and maintains the different parts of the system and gives users and applications a stable, safe place to work.

Some of the most important things an operating system does are:

1. Memory management
2. Device management
3. Processor management
4. File management
5. Security management
6. User interface
7. Networking
8. Error handling
9. Resource allocation

2. What are Multiprocessing and Multitasking?

In computer science, the terms multiprocessing and multitasking refer to two different but related processes.

• The term "multi-processing" is used to describe a computer's ability to make use of numerous central processing units (CPUs) or cores, each of which can carry out its own independent activities or contribute to the completion of a larger job. The performance and throughput of a system can benefit from having numerous processes or threads executed at once, as is the case with a multi-processing system.
• The term "multitasking" is used to describe an operating system's capacity to handle numerous activities or processes at once by allocating time and resources from the CPU to each of them. That is, multitasking enables a single CPU to provide the impression of running numerous apps or processes at once by swiftly switching between them.

3. What are the differences between an object-oriented programming language and an object-based programming language?

Features	Object-oriented programming (OOP)	Object-based programming (OBP)
Inheritance	OOP allows for an inheritance, where objects can inherit properties and methods from a parent class.	OBP does not support inheritance or only supports limited forms of inheritance.
Polymorphism	OOP supports polymorphism, which allows objects of different classes to be used interchangeably through a common interface	OBP does not support polymorphism or only supports limited forms of polymorphism.
Encapsulation	OOP provides a high encapsulation level, meaning that an object's internal state is hidden from the outside world and can only be accessed through defined interfaces.	OBP may not provide the same level of encapsulation.
Abstraction	OOP allows for abstraction, which means that complex systems can be modeled by abstracting away irrelevant details and focusing on essential properties and behaviors	OBP may not provide the same level of abstraction.
Language support	OOP is often associated with languages such as Java, Python, C++, and Ruby, which provide built-in support for OOP features.	OBP is often associated with languages such as JavaScript and VBScript, which provide some object-oriented features but do not fully support OOP.

4. What are the different types of inheritance in Java?

In Java, inheritance is a mechanism by which one class can inherit properties and behaviors from another class. Several types of inheritance can be used in Java:

• Single inheritance
• Multi-level inheritance
• Hierarchical inheritance
• Hybrid inheritance, and 
• Multiple inheritances.

[Related Article : Classes, Inheritance, and Overriding in SalesForce ]

5. What is a JOIN operation in SQL? Explain the different types of JOINs.

With a JOIN operation, data from two or more tables in a database are put together.

The different types of JOINs are

1. INNER JOIN
2. LEFT JOIN (or LEFT OUTER JOIN)
3. RIGHT JOIN (or RIGHT OUTER JOIN)
4. Full outer join.

6. Describe a member function's precondition and postcondition in the C++ programming language.

In C++, a precondition and a postcondition are two important concepts associated with a class's member functions.

Precondition: A precondition defines the requirements that the calling function or the object must meet before the member function can be executed correctly. If the precondition is not met, the function's behavior is undefined.

Postcondition: A postcondition defines the effects of the procedure on the state of the object or the system. If the postcondition is not met, the function does not complete its task correctly.

7. How do you use Java's order of precedence and associativity? What do you know about it?

In Java, the order of precedence determines the order in which operators are evaluated in an expression, and associativity determines the order in which operations with the same precedence are evaluated. Understanding the order of precedence and associativity is essential when writing complex expressions, as it helps ensure the procedures are performed correctly.

Java follows the standard order of precedence, which is as follows (from highest to lowest):

1. Postfix operators: e.g., a++, a--
2. Unary operators: e.g., ++a, --a, +a, -a, !a
3. Multiplicative operators: e.g., *, /, %
4. Additive operators: e.g., +, -
5. Shift operators: e.g., <<, >>, >>>
6. Relational operators: e.g., <, <=, >, >=, instanceof
7. Equality operators: e.g., ==, !=
8. Bitwise and logical operators: e.g., &, |, ^, &&, ||
9. Conditional operator: e.g., condition? value1 : value2
10. Assignment operators: e.g., =, +=, -=, *=, /=, %= etc.

Understanding the order of precedence and associativity is essential when writing expressions in Java. By using parentheses to group operations in the desired order, you can ensure that the operations are evaluated correctly.

[To prepare more for the interview, check out these Java Spring & Core Java Interview Questions to answer well in the interview.]

8. Why is macro faster than functions in the C programming language?

It is not necessarily true that macros are faster than functions in the C programming language. In fact, functions can be faster and more efficient in many cases than macros.

One reason macros are sometimes perceived as faster than functions is that macros avoid the overhead of function call and return. When a function is called, the program has to push the arguments onto the stack, jump to the function code, execute the function, and return to the calling code. This overhead can be significant for small and frequently called functions. 

Conversely, macros are expanded inline, and their code is executed as part of the calling code, without the overhead of function call and return. However, this advantage is often negligible in modern compilers, and some compilers can inline functions that are called frequently, making them as fast or faster than macros.

[Know these C++ Interview Questions and Answers to ace the Wipro interview.]

9. Explain memory management in C.

Memory management in C involves allocating and deallocating memory for variables and data structures. 

In C, memory can be allocated dynamically using functions like malloc() and calloc() and deallocated using free(). C does not provide automatic memory management like other programming languages, so the programmer must manage memory manually. Care must be taken to avoid memory leaks, where memory is allocated but never deallocated, and invalid memory access, which can result in runtime errors like segmentation faults. C programmers use techniques like garbage collection, smart pointers, and memory pools to avoid these issues.

10. What are the benefits of time slicing in CPU Scheduling in OS?

The advantages of time slicing in CPU scheduling in operating systems include

1. Fairness
2. Responsiveness
3. Resource utilization
4. Multitasking
5. Predictability

11. What are the steps involved in designing complete software?

The steps involved in designing complete software can vary depending on the methodology used and the specific project requirements, but a general process might include the following steps:

1. Requirement gathering
2. System analysis and design
3. Implementation and coding
4. Testing
5. Deployment and installation
6. Maintenance

[Related Article : Software Development Life Cycle in SSIS ]

12. Explain the concept of garbage collection in Java.

Garbage collection is the process by which the Java Virtual Machine (JVM) automatically frees up memory that is no longer being used by objects in a program.

[Related Article : Java Collections Interview Questions]

13. What is a RESTful web service?

A RESTful web service is a type of web service that follows the principles of Representational State Transfer (REST) architecture. It relies on stateless, client-server communication, where the server stores no information about the client's state. It uses HTTP methods such as GET, POST, PUT, DELETE, etc., to perform CRUD (Create, Read, Update, Delete) operations on resources identified by unique URLs. 

14. What strategies and techniques do you use to achieve and maintain high availability in a cloud environment?

To achieve high availability in a cloud environment, employing a range of methods and procedures that minimize downtime and maintain service uptime is important. 

Some of the key strategies for achieving high availability in the cloud include:

• Load balancing
• Redundancy
• Fault tolerance
• Disaster recovery
• Auto-scaling

[Related Article : Polymorphism In Labview]

15. What is a binary search?

A binary search is an algorithm used to find a specific value in an array that has been sorted. This algorithm has a time complexity of O(log n) and is extensively used in programming and computer science for searching enormous databases.

16. What exactly does unit testing aim to achieve?

The aim of unit testing is to verify the functionality of discrete parts of a program without relying on the whole. The purpose of these automated tests is to ensure that the code within a specific "unit" behaves as intended.

17. How would you improve a database query that runs slowly?

• Use indexes, rewrite the query to get rid of unnecessary joins or subqueries, or optimize the query's parameters to make it run faster.
• If you can, use caching to cut down on how many times the query is run.
• Check on and tweak the query's performance often to make sure it continues to work well over time.

18. Explain briefly about Java's StringBuilder and StringBuffer.

StringBuffer can be utilized in a multithreaded context, although StringBuilder cannot, due to its synchronization. In contrast, StringBuilder is not synchronized. It is faster, but thread-safety is not guaranteed. Both classes are used to create and manipulate strings, however if thread safety is a concern, StringBuffer should be used. If thread safety is not a concern and performance is a priority, StringBuilder is generally the preferred choice.

19. List some features of JavaScript

Some features of JavaScript include:

1. Dynamic typing
2. Object-oriented programming
3. Functions as first-class objects
4. Event-driven programming
5. Interactivity
6. Asynchronous programming
7. Cross-platform compatibility

20. What are the advantages of selection sort?

The main advantage of selection sort is its simplicity and ease of implementation. Selection sort is easy to understand and can be implemented using only basic programming constructs like loops and conditional statements. It also has a relatively low memory overhead, requiring only a single additional memory location to swap elements.

Wipro Technical Interview Questions for Experienced

21. How would you create a system to manage huge user traffic volumes?

• Use a load balancer to send incoming traffic to different servers so that no single server gets too busy.
• Use horizontal scaling to handle more traffic by adding more servers as needed.
• Optimize the system's performance by caching data that is often used and making sure database queries are as good as they can be.

[Related Article : AWS S3 Interview Questions]

22. What is your experience with DevOps tools such as Jenkins, Ansible, or Chef?

For example, you can answer like, in my previous role, The Ansible, Jenkins, and Docker-based CI/CD pipeline that I built and maintained was integral to the success of the business. I'm familiar with automating infrastructure provisioning and configuration management with Ansible playbooks, which I've written before. I've worked with Chef before, and it's a tool I've used for configuration management on other projects.

23. What is your knowledge on data analytics and machine learning?

For example, you can answer like, data preparation, feature engineering, model selection, and model evaluation are all areas in which I have expertise. I have experience with data analytics tools like NumPy, Pandas, and Matplotlib, and can use them effectively.

[Related Article : Machine Learning Applications]

24. Can you explain your experience with microservices architecture?

For example, you can answer like, formerly, I was a part of a team that used Docker and Spring Boot to convert a monolithic programme into a distributed one. I am proficient in the design of microservices, API gateway development, and REST service integration. I've also worked with Kubernetes, a container orchestration platform.

25. Can you explain what microservices architecture is and what it does for you?

The goal of the microservices design is to make large software programmes easier to manage by dividing them up into smaller pieces that can be independently tested, updated, and scaled. Improved responsiveness, scalability, fault tolerance, and manageability are just some of the ways in which microservices pay off.

26. How would you build a system with high availability for a critical application?

Redundancy, load balancing, failover methods, and disaster recovery must all be taken into account while designing a high-availability system. Important components of a high-availability system include clustering, load balancers, servers, and replication.

27. How would you speed up a database query that runs slowly?

A slow database query can be improved in a few different ways. The most frequent methods include:

• Check the query plan
• Optimize indexes
• Use cached results
• Tune the database configuration
• Optimize the hardware

Common methods for speeding up a sluggish database query include the ones listed above. Both the nature of the query and the underlying database management system will influence the method that is ultimately chosen.

28. What virtualization is and what it does?

The process of generating a software-based virtual replica of something, such as a network, storage device, server, or operating system, is known as virtualization. In order to maximize the use of hardware resources, this virtualization technology permits the development of numerous virtual machines (VMs) that can run various applications and operating systems on a single physical server.

• Easier management.
• Improved scalability.
• Better resource utilization.
• Maintenance of resources.

29. Explain the difference between a synchronous and asynchronous call?

Applications that rely heavily on concurrent processing and a quick response time frequently make use of asynchronous calls. The caller must wait for the return of a synchronous call before moving on to other activities. An asynchronous call, on the other hand, is one that does not prevent the caller from moving on to other activities while waiting for a response.

30. Tell me about the idea of containerization and the advantages it offers.

Containerization is the process of encapsulating an application and its dependencies into a container, which can be run in any environment that supports containerization technology. 

The benefits of containerization include scalability, improved portability, security, and easier management and deployment of regenerate response

31. What do you understand about Stack Unwinding in C++?

In C++, "stack unwinding" refers to the process by which the runtime system "unwinds" the call stack during exception handling. It is necessary when an exception is thrown but not caught in the current function, causing it to terminate prematurely. In summary, stack unwinding is the process of unwinding the call stack during exception handling in C++. Ensuring exceptions can be handled properly, and resources are cleaned up correctly is essential.

32. What are the data structures used in BFS and DFS algorithms?

Breadth-First Search (BFS) and Depth-First Search (DFS) are popular graph traversal algorithms operating on graphs or trees. The main data structure used in each algorithm is slightly different:

Breadth-First Search (BFS): BFS is typically implemented using a queue data structure. The algorithm starts by adding the root node of the graph to the queue. It then repeatedly dequeues nodes from the front of the queue, adds their unvisited neighbors to the back, and marks the dequeued node as visited. 

Depth-First Search (DFS): DFS is typically implemented using a stack data structure. The algorithm starts by pushing the root node onto the stack. It then repeatedly pops nodes from the top of the stack, explores their unvisited neighbors, and pushes those neighbors onto the stack. The algorithm continues this process until the stack is empty, meaning all reachable nodes have been visited.

33. What do you understand about RAID in Project Management?

In the context of Project Management, RAID is an acronym for Risks, Assumptions, Issues, and Dependencies. It's a plan for anticipating and dealing with issues that could derail a project.

34. Why do we need preprocessing for CSS?

CSS preprocessors simplify CSS writing. Developers can define a property value once and reuse it throughout the CSS using variables. Calculations, gradients, and animations are faster with functions. Developers can nest styles to increase readability.

35. How may a Java programme request trash collection?

Here's a Java programme that calls for trash collection with the System.gc() method:

Program: 

public class GarbageCollectionExample {
    public static void main(String[] args) {
        // Create some objects
        String message = "Hello, world!";
        Object obj = new Object();
        // Request garbage collection
        System.gc();
        // Wait for a short time to give the garbage collector a chance to run
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        // Print a message to indicate that the program has finished
        System.out.println("Program complete.");
    }
}

36. Write a program to check palindromes?

Here is a program in Java that checks whether a given string is a palindrome or not:

public class PalindromeChecker {
    public static void main(String[] args) {
        String str = "racecar"; // The string to be checked
        boolean isPalindrome = true;
        // Check if the string is a palindrome
        for (int i = 0; i < str.length() / 2; i++) {
            if (str.charAt(i) != str.charAt(str.length() - 1 - i)) {
                isPalindrome = false;
                break;
            }
        }
        // Print the result
        if (isPalindrome) {
            System.out.println(str + " is a palindrome.");
        } else {
            System.out.println(str + " is not a palindrome.");
        }
    }
}

37. Write a program to check whether or not the number is prime.

Here's a program in C that checks whether a given number is prime or not:

#include <stdio.h>
int main() {
    int number = 17; // The number to be checked
    int isPrime = 1; // Assume the number is prime
    // Check if the number is prime
    for (int i = 2; i * i <= number; i++) {
        if (number % i == 0) {
            isPrime = 0; // The number is not prime
            break;
        }
    }
    // Print the result
    if (isPrime) {
        printf("%d is a prime number.\n", number);
    } else {
        printf("%d is not a prime number.\n", number);
    }
    return 0;
}

38. How do you put the items in an array in order from most to least?

Every sorting technique can be reversed to sort array elements in descending order. 

Java Bubble Sort example:

public class DescendingSort {
    public static void main(String[] args) {
        int[] arr = { 5, 2, 8, 1, 3 }; // The array to be sorted
        // Sort the array in descending order using Bubble Sort
        for (int i = 0; i < arr.length - 1; i++) {
            for (int j = 0; j < arr.length - i - 1; j++) {
                if (arr[j] < arr[j + 1]) {
                    int temp = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = temp;
                }
            }
        }
        // Print the sorted array
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i] + " ");
        }
    }
}
OUTPUT: 8 5 3 2 1

39. Write a program that uses bubble sort to sort the string.

The following is a programme written in Java that employs the Bubble Sort algorithm to sort a string array:

public class StringBubbleSort {
    public static void main(String[] args) {
        String[] arr = { "hello", "world", "java", "program" }; // The string array to be sorted
        // Sort the array using Bubble Sort
        for (int i = 0; i < arr.length - 1; i++) {
            for (int j = 0; j < arr.length - i - 1; j++) {
                if (arr[j].compareTo(arr[j + 1]) > 0) {
                    String temp = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = temp;
                }
            }
        }
        // Print the sorted array
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i] + " ");
        }
    }
}

40. Without using a semicolon, write C code to output "Hello, world!"

Yes, "hello world" can be printed in C without a semicolon at the end of the statement. 

Here's the code:

#include <stdio.h>
int main() {
    if (printf("hello world\n")) {
        // Do nothing, just print "hello world"
    }
    return 0;
}

Wipro Leadership Principles

Some leadership principles of Wipro include

1. One's work should be their own, they should take responsibility for the outcomes, and they should be the ones to push for constant development under this approach.
2. Creativity and invention are emphasized as essential to growth and the resolution of difficult situations, as outlined by this guiding concept.
3. Teamwork is a guiding philosophy that stresses the value of cooperation, information sharing, and mutual aid in the pursuit of shared objectives.
4. "Execution Excellence" is a guiding philosophy that stresses the value of following through on promises, finishing tasks on time, and enhancing workflows in order to maximize productivity.
5. The goal of this tenet is to satisfy the client by anticipating their requirements and providing them with creative and effective solutions.
6. To have a strong desire to thrive and win in the marketplace while maintaining high moral and ethical standards is the focus of the "Passion to Win" principle.

Tips to Crack Wipro Interview

Here are some tips to help you crack the Wipro interview:

• Before your interview, research Wipro and its business services, areas, and products. Understand the company's vision, values, and mission.
• Ensure your resume is well-organized and highlights your skills and achievements. Customize your resume to fit the position you're applying for.
• Practice your interview skills by answering common interview questions and rehearsing your responses. Consider recording yourself to identify areas of improvement.
• Review the job description and ensure you understand the skills and experience required for the position.
• At the end of the interview, ask questions about the company, the position, and the culture to demonstrate your interest in the job.

Wipro FAQs

1. What should I prepare for the Wipro interview?

To prepare for a Wipro interview, here are some key areas to focus on:

1. Technical Skills
2. Behavioral Questions
3. Company Research
4. Industry Trends
5. Communication Skills
6. Problem-Solving Skills
7. Resume Review

2. What is the interview process at Wipro?

The interview process at Wipro may vary depending on the position and location, but generally, it consists of the following stages:

1. Online Application
2. Initial Screening
3. Technical Interview
4. Managerial Interview
5. HR Interview

3. Why should we hire you at Wipro?

You can answer, "I possess strong learning abilities to quickly comprehend and absorb new information. I find great satisfaction in tackling challenging problems and can maintain composure and productivity even in high-pressure situations. I have experience effectively leading teams and possess excellent delegation and leadership skills."

4. What are the HR interview questions in Wipro?

Below are some common HR interview questions that may be asked during a Wipro interview:

1. Can you tell us about yourself?
2. What are your strengths and weaknesses?
3. What are your career goals?
4. How do you handle stress and pressure?
5. What motivates you?
6. How do you deal with difficult coworkers or situations?
7. Why are you interested in working for Wipro?
8. What are your salary expectations?

5. Is the Wipro interview easy?

Sometimes, the interview process may be challenging, particularly for technical roles or positions requiring specific skills and experience. However, the difficulty level of the interview will ultimately depend on the individual's skills and experience, as well as the particular requirements of the position they are applying for.

6. How do I introduce myself in the Wipro interview?

For example you can answer like: "Hi, my name is [your name], and I'm thrilled to be interviewing with Wipro. I have [a number of years] experience in [relevant industry or field] and am passionate about using technology to solve complex problems and drive innovation. Throughout my career, I've developed strong [relevant skills or expertise], and I'm eager to leverage these skills to make a meaningful contribution to Wipro's team. I'm a hard worker, quick learner, and team player, and committed to delivering high-quality results for my clients and colleagues. Thank you for considering my application, and I look forward to discussing my qualifications further."

Conclusion

In summary, the Wipro interview questions and answers are designed to assess a candidate's technical knowledge, skills, and experience in various areas related to the job. Following the interview preparation tips and questions helps put their best foot forward, and candidates can increase their chances of success in the Wipro interview process and potentially secure a rewarding career with the company.

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