Infosys Technical Interview Questions & Answers: Ultimate Guide


May 22, 2023
Infosys Technical Interview Questions & Answers: Ultimate

As a job seeker, the technical interview process can be one of the most intimidating aspects of the job search. Infosys is known for its rigorous technical interview process, which is designed to identify top talent. In this guide, we'll cover everything you need to know to prepare for an Infosys technical interview, including common interview questions and how to answer them.

About Infosys

Bangalore is home to the international IT business Infosys, India. Founded in 1981, Infosys is one of the largest and most prestigious IT companies in the world, with offices in more than 45 countries. The company is known for its expertise in digital services, consulting, and outsourcing.

What to Expect in an Infosys Technical Interview

Infosys technical interviews are designed to test your technical skills and problem-solving abilities. You can expect a combination of technical questions and behavioural questions, which will assess your knowledge, experience, and personality. The interview may also include a coding challenge or technical project.

Infosys Technical Interview Questions and Answers

Technical Skills

Q1. What are the different types of testing?

Answer: There are several types of testing, including unit testing, integration testing, system testing, and acceptance testing. Unit testing is used to test individual components of the system, while integration testing is used to test how different components of the system work together. System testing is used to test the system as a whole, and acceptance testing is used to test whether the system meets the requirements.

Q2. What is the difference between software and hardware?

Answer: Software refers to the programs and instructions that run on a computer, while hardware refers to the physical components of the computer, such as the processor, memory, and storage.

Programming Languages

Q3. What is object-oriented programming?

Answer: Object-oriented programming (OOP) is a programming paradigm that uses objects to represent data and methods to manipulate that data. 

Q4. What is the difference between a class and an object?

Answer: A class is a blueprint or template for creating objects, while an object is an instance of a class.

Database Management

Q5. What is a database?

Answer: A database is a collection of data that is organized in a specific way so that it can be easily accessed, managed, and updated.

Q6. What is SQL?

Answer: SQL (Structured Query Language) is a programming language used to manage relational databases. It is used to create, modify, and delete databases, as well as to query and retrieve data from databases.

Operating Systems

Q7. What is an operating system?

Answer: An operating system (OS) is software that manages computer hardware and software resources and provides common services for computer programs. It is the most fundamental type of system software in a computer, and it is responsible for managing memory, processes, input/output devices, and file systems.

Q8. What is the difference between multitasking and multithreading?

Answer: Multitasking refers to the ability of an operating system to run multiple applications at the same time. Multithreading, on the other hand, refers to the ability of a single application to perform multiple tasks at the same time.

Data Structures and Algorithms

Q9. What is a data structure?

Answer: A data structure is a way of organizing data in a computer so that it can be used efficiently. Examples of data structures include arrays, linked lists, trees, and graphs.

Q10. What is an algorithm?

Answer: An algorithm is a set of instructions that performs a specific task. It is used to solve problems and perform calculations in computer programs.


Preparing for an Infosys technical interview can be challenging, but with the right preparation and mindset, you can ace the interview and land your dream job. By reviewing common interview questions, practicing your technical skills, and demonstrating your enthusiasm and problem-solving approach, you'll be well on your way to success.

Frequently Asked Questions (FAQs)

Q. What is the interview process like at Infosys?

A.  The interview process at Infosys typically involves a phone screen, followed by a technical interview and possibly a coding challenge or technical project.

Q. What are some of the technical skills that Infosys looks for in job candidates?

A.  Infosys looks for job candidates who have strong technical skills in programming languages, database management, operating systems, and networking.

Q. How can I prepare for an Infosys technical interview?

A.  To prepare for an Infosys technical interview, you should research the company and the role, review common interview questions, practice your technical skills, and be prepared to explain your thought process and problem-solving approach.

Q. What is the culture like at Infosys?

A.  Infosys has a culture that emphasizes innovation, collaboration, and continuous learning. The company is known for its focus on employee development and work-life balance.

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