Wipro is an Indian multinational corporation that provides information technology, consulting, and business process services. It was founded in 1945 by M.H. Hasham Premji as Western India Palm Refined Oil Limited, which later became Wipro Limited. The company is headquartered in Bangalore, India and has a presence in over 50 countries worldwide.
Wipro offers a range of services such as digital strategy, IT consulting, application development, and infrastructure management services. The company also provides product engineering and research and development services for various industries such as healthcare, financial services, retail, and energy.
Wipro is one of the largest IT services companies in India and is listed on the National Stock Exchange and Bombay Stock Exchange in India. The company has a global workforce of over 190,000 employees as of 2021.
Wipro Interview Process
Interview process at Wipro can vary depending on the role and level for which you are applying. However, generally, the interview process can consist of the following steps:
Online Application: You will need to apply online for a job opening that matches your skills and experience.
Assessment Tests: After submitting your application, you may be asked to take online assessment tests to evaluate your technical skills, cognitive abilities, and language proficiency.
Technical Interview: If you clear the HR interview, you will be invited for a technical interview. The technical interview will assess your technical skills and knowledge related to the job role.
Managerial Interview: If you clear the technical interview, you may be called for a managerial interview. The managerial interview will evaluate your leadership and problem-solving skills.
HR Discussion and Offer: If you clear all the previous rounds, you will be invited for an HR discussion to finalize your offer letter, compensation, and other terms and conditions.
Overall, the interview process at Wipro is designed to assess your technical skills, communication skills, cultural fit, and leadership abilities. It may take several weeks to complete the entire interview process, and the timeline may vary depending on the role and level for which you are applying.
Wipro HR Interview Question and answer
The HR interview is an important stage in the Wipro interview process, and it’s essential to prepare well for it. Here are some common HR interview questions for freshers along with sample answers:
1. Tell me about yourself.
Sample answer: I am a recent graduate with a degree in Computer Science. I am passionate about technology and have completed several projects during my college years. I am a quick learner and a team player who is eager to contribute to the growth of Wipro.
2. Why do you want to work for Wipro?
Sample answer: I have always admired Wipro’s commitment to innovation and its reputation as a leader in the IT industry. I am particularly impressed by Wipro’s focus on sustainability and social responsibility. I believe Wipro’s culture and values align with my personal values, and I am excited to be a part of such a dynamic organization.
3. What are your strengths?
Sample answer: My strengths are my technical skills, problem-solving abilities, and attention to detail. I have also developed strong communication and interpersonal skills through my involvement in various extracurricular activities.
4. What are your weaknesses?
Sample answer: One of my weaknesses is that I tend to be too critical of my own work. However, I have learned to take constructive feedback positively and use it to improve my performance.
5. How do you handle pressure and deadlines?
Sample answer: I thrive under pressure and am skilled at prioritizing tasks and managing my time effectively. I also make sure to communicate clearly with my team members and managers to ensure that we are all on the same page and can meet deadlines together.
Remember to be honest and authentic in your responses, and use specific examples to demonstrate your skills and experience.
Wipro Technical interview question and answer for freshers
1. What is a programming language?
A programming language is a set of instructions that computers can understand and execute. It allows you to write law to perform specific tasks or functions.
2. What is an algorithm?
An algorithm is a step- by- step procedure used to break a problem. It can be enforced using programming languages and can help break problems more efficiently.
3. What is a data structure?
A data structure is a way of organizing and storing data in a computer so that it can be penetrated and used efficiently. Exemplifications of data structures include arrays, linked lists, and trees.
4. What is a database?
A database is a collection of data that’s organized and stored in a way that can be fluently penetrated and managed. It’s generally used to store and recoup data for software operations.
5. What is object-oriented programming?
Object- acquainted programming (OOP) is a programming paradigm grounded on the conception of objects, which can contain data and law. It allows for the creation of modular, applicable law that can be fluently maintained and extended.
6. What is debugging?
Debugging is the process of finding and fixing crimes or bugs in a program. It’s an essential part of software development and requires careful attention to detail and problem- working chops.
7. What are the differences between error and exception in Java?
Errors are generally caused by the environment in which the Java Virtual Machine (JVM) is running, such as hardware failure, out of memory, or stack overflow. These are severe problems that cannot be handled by the program and may cause the JVM to terminate. Examples of errors in Java include Out Of Memory Error, Stack Overflow Error, and Virtual Machine Error.
Exceptions, on the other hand, are caused by the program itself and can be handled by the program. Exceptions are generally caused by invalid inputs, programming logic errors, or other runtime conditions. Examples of exceptions in Java include NullPointer Exception, Arithmetic Exception, and Array Index out Of Bounds Exception.
Errors are typically unrecoverable and can cause the program to terminate abruptly, while exceptions can be caught and handled by the program using try-catch blocks.
Exceptions are divided into two types: checked exceptions and unchecked exceptions. Checked exceptions are checked at compile-time and must be handled by the programmer using a try-catch block, or by declaring them in the method signature using the throws keyword. Unchecked exceptions, such as Null Pointer Exception and Array Index out Of Bounds Exception, do not need to be declared or caught by the program.
8. Differentiate between strings and char arrays in Java.
Strings and char arrays are both used to represent textual data in Java, but they are different in several ways:
- Immutable vs. Mutable: Strings in Java are immutable, which means that once a String object is created, its value cannot be changed. On the other hand, char arrays are mutable, which means that the values of its elements can be changed.
- Length: String objects have a length method to get the number of characters in the string, while char arrays have a length field to get the number of elements in the array.
- Null-terminated: In a char array, you can use a null character (‘\0’) to indicate the end of the string. In a String object, there is no null character at the end of the string.
- API: Strings have a rich API that provides many useful methods for manipulating strings, such as substring, replace, and index of. Char arrays do not have the same level of built-in functionality as strings.
- Memory allocation: Strings are objects that are stored in the heap memory, while char arrays are primitive types that are stored in the stack memory.
9. What is deadlock in operating system?
Deadlock is a situation in operating systems where two or more processes are blocked and waiting for each other to release resources, which results in a standstill or a halt in the system. In a deadlock, each process is waiting for another process to release a resource that it needs, so none of the processes can proceed.
Deadlocks can occur when processes are competing for a finite set of resources, such as memory, CPU time, or input/output devices and the processes are not able to release the resources they are holding until they receive the resources they are waiting for.
A deadlock can be caused by four conditions, known as the “deadlock prevention” conditions:
- Mutual Exclusion: A resource can only be held by one process at a time.
- Hold and Wait: A process is holding a resource and waiting for another resource to be released.
- No Preemption: A resource cannot be forcibly taken away from a process that is holding it.
- Circular Wait: A cycle exists in the waiting chain of processes, where each process is waiting for a resource held by the next process in the chain.
10. What are types of threads?
There are two types of threads in Java: user threads and daemon threads. User threads are created by the application and are non-daemon threads by default. They continue to run until either they complete their task or the application terminates. Daemon threads, on the other hand, are background threads that are used to perform tasks such as garbage collection or cleaning up resources when the application exits. Daemon threads are terminated automatically when all the non-daemon threads have completed their tasks.
11. Why we use kernel in operating system?
The kernel is the core component of an operating system that manages the system’s resources and provides services to applications. It provides an interface for hardware devices and manages their access by software components. The kernel manages system memory, processes, and input/output operations. It also provides security by enforcing access control policies and protection of resources. Without a kernel, applications would not be able to access system resources and manage them efficiently. Therefore, the kernel is essential for the proper functioning of the operating system.
12. What is a process in operating system?
A process is an instance of a program that is being executed by an operating system. It includes program code, data, and the current execution state. Each process has its own memory space, execution priority, and system resources assigned by the operating system. Processes can interact with each other and the system through inter-process communication mechanisms. The operating system manages the scheduling and execution of processes to ensure that they do not interfere with each other and run efficiently.
13. What is page fault in OS?
A page fault is an exception that occurs when a process attempts to access a page of memory that is not currently present in physical memory or RAM. The operating system responds to a page fault by retrieving the necessary page from secondary storage such as the hard disk and loading it into RAM so that the process can access it. This process is known as page swapping or paging.
14. What are the different types of languages in DBMS?
In DBMS, there are mainly four types of languages:
Data Definition Language (DDL)
Data Manipulation Language (DML)
Data Control Language (DCL)
Transaction Control Language (TCL)
DDL is used to create, modify, and delete database objects such as tables, indexes, and views. DML is used to insert, update, and delete data in a database. DCL is used to control access to database objects and data, while TCL is used to control the transactions in a database.
15. What is normalization in DBMS?
Normalization in DBMS is the process of organizing data in a database in a way that reduces redundancy and dependency. It involves breaking down large tables into smaller tables and establishing relationships between them. The goal of normalization is to eliminate data anomalies, such as insert, update, and delete anomalies that can arise from redundant or improperly structured data. Normalization is achieved through a series of normal forms, with each successive normal form ensuring that the data is further organized and dependencies are minimized.
16. Where we use multilevel inheritance?
Multilevel inheritance is used when a class is derived from a class which is already derived from another class. In this way, a chain of inheritance is formed. This type of inheritance is useful when creating a hierarchy of classes where each subclass inherits properties and behavior from the parent class and adds its own. Multilevel inheritance can help in creating a more organized and modular code structure, making it easier to maintain and understand the code. It is commonly used in object-oriented programming languages such as Java and C++.
17. Explain the call by value and call by reference?
Call by value and calls by reference are two different ways of passing arguments to a function or subroutine. In call by value, a copy of the argument’s value is passed to the function, and any changes made to the parameter inside the function do not affect the original value. In call by reference, a reference to the original variable is passed to the function, and any changes made to the parameter inside the function affect the original value. Call by reference is useful when you want to modify the original value of a variable within a function.
18. What is final keyword in java?
In Java, the final keyword is used to create a constant that cannot be modified. It can be applied to variables, methods, and classes. When a variable is declared as final, its value cannot be changed once it is assigned a value. When a method is declared as final, it cannot be overridden by a subclass. When a class is declared as final, it cannot be extended or sub classed. The final keyword is often used to define values that should not be changed, such as mathematical constants or configuration values.
19. What is string?
In Java, a string is a sequence of characters that represents a text value. Strings are one of the most commonly used data types in Java and are used to store and manipulate text-based data. Strings in Java are represented using the String class, which provides various methods for working with strings, such as concatenation, length calculation, substring extraction, and pattern matching. Strings in Java are immutable, which means that once a string object is created, its value cannot be changed. String literals are enclosed in double quotes and can contain letters, digits, special characters, and whitespace. Strings can be compared using the equals () method, which compares the content of two strings, or the == operator, which compares the object reference of two strings.
20. What are the different types of data structure?
There are various types of data structures in computer science, including arrays, linked lists, stacks, queues, trees, graphs, and hash tables. Arrays are a collection of elements of the same data type, while linked lists are a sequence of nodes, each containing a reference to the next node. Stacks and queues are linear data structures used to store a collection of elements, while trees and graphs are non-linear data structures used to represent hierarchical and complex relationships. Hash tables are used to store and retrieve data using a hash function. Each data structure has its own set of advantages and disadvantages, and is suited for different types of problems.
21. What is merge sort?
Merge sort is a sorting algorithm that uses the divide and conquers approach to sort an array or list of elements. It works by dividing the input array into two halves, sorting each half recursively, and also incorporating the two sorted halves back together. The merging process involves comparing the elements in the two halves and inserting them into a new array in the correct order. Merge sort has a time complexity of O (n log n) and is known for its stability, meaning that it maintains the relative order of equal elements in the sorted array.
22. What is an Error handling?
Error handling is a process of identifying and handling errors or exceptions that occur in a program or system. It involves anticipating possible errors and developing strategies to deal with them effectively. Error handling can be implemented using various techniques, such as exception handling, assertions, and error codes. The goal of error handling is to prevent crashes and unexpected behavior in the program, and to provide meaningful error messages to help users or developers diagnose and fix problems. Proper error handling is an essential part of software development, as it improves the reliability, usability, and maintainability of the software.
23. Explain SELECT and INSERT commands in DBMS?
SELECT and INSERT are two important commands in DBMS. SELECT is used to retrieve data from a database table or view based on certain conditions specified using the WHERE clause. It allows users to filter, sort, and group data as needed. INSERT is used to add new data to a database table. It allows users to specify the values for each column of the table, or to insert data from another table or query. Both SELECT and INSERT commands are essential for querying and manipulating data in a database, and are commonly used in various database applications.
24. What is JIT compiler in Java?
JIT (Just-In-Time) compiler is a feature of Java Virtual Machine (JVM) that compiles Java byte code into native machine code at runtime, right before executing it. The JIT compiler helps to improve the performance of Java applications by optimizing frequently executed code paths and reducing the interpretation overhead. It analyzes the byte code and generates machine code that is tailored to the specific hardware and operating system. This allows Java programs to run faster than they would with just interpretation.
25. Where we use JVM in java?
JVM (Java Virtual Machine) is used to run Java applications and programs. It provides a platform-independent environment in which Java byte code can be executed. JVM interprets the byte code and translates it into machine code that can be understood by the host operating system. JVM is an essential component of the Java runtime environment and is used to execute Java applications on a variety of devices and platforms, such as desktop computers, servers, mobile devices, and embedded systems. JVM also provides features such as garbage collection, security, and memory management, which help to improve the performance and reliability of Java applications.
26. What is a hash table, and how does it work?
A hash table is a data structure that maps keys to values using a hash function. A hash function takes a key as input and returns an index into an array, where the corresponding value is stored. The main advantage of hash tables is that they provide constant-time average-case access to elements, regardless of the number of elements in the table. However, hash tables can suffer from collisions, where two keys map to the same index, which can result in slower performance. To handle collisions, hash tables typically use a collision resolution strategy, such as chaining or open addressing.
Conclusion
However, in general, it’s always important to prepare well for any job interview, including researching the company and the job requirements, practicing common interview questions, and showcasing your skills and experiences. It’s also important to be professional, confident, and articulate during the interview, and to ask relevant questions about the company and the role. Finally, make sure to follow up with a thank-you note or email after the interview and stay positive throughout your job search.