<

# Infosys Technical Interview: Common Questions and Expert Answers

Shivam

May 22, 2023

Infosys is a global leader in digital services and consulting, with a presence in over 50 countries. They are known for their innovation and cutting-edge technology solutions. If you are looking to work for Infosys, it is essential to have a strong technical background and problem-solving skills.

The Infosys technical interview is designed to evaluate your technical skills and your ability to solve problems efficiently. The interviewers will ask you questions related to programming languages, algorithms, data structures, and software development. They will also assess your analytical and logical reasoning skills. It is crucial to prepare well for the interview to showcase your skills and impress your interviewers.

## Infosys Technical Interview: Common Questions and Expert Answers

### Can you explain the difference between a stack and a queue?

A stack and a queue are data structures used in computer science. A stack is a Last-In-First-Out (LIFO) data structure, whereas a queue is a First-In-First-Out (FIFO) data structure. In a stack, the last item inserted is the first one to be removed, while in a queue, the first item inserted is the first one to be removed.

### What is a linked list, and how does it differ from an array?

A linked list is a data structure that consists of a sequence of nodes, where each node contains data and a reference to the next node in the sequence. In contrast, an array is a collection of elements stored in contiguous memory locations. The primary difference between a linked list and an array is that the size of an array is fixed, whereas the size of a linked list can be dynamically allocated.

### Can you explain the concept of recursion?

Recursion is a programming technique in which a function calls itself to solve a problem. It is a useful technique for solving problems that can be divided into smaller sub-problems. A recursive function consists of a base case and a recursive case. The base case defines the exit condition for the recursion, and the recursive case calls the function again with a smaller input.

### Can you explain the concept of Object-Oriented Programming?

Object-Oriented Programming (OOP) is a programming paradigm that revolves around the concept of objects. An object is an instance of a class that contains data and methods to manipulate that data.

### What is the difference between a compiler and an interpreter?

A compiler is a software program that converts source code written in a high-level programming language into machine code that can be directly executed by the computer. An interpreter, on the other hand, is a program that directly executes the source code without converting it into machine code.

### Can you explain the concept of multi-threading?

Multi-threading is a programming technique that allows multiple threads to execute concurrently within a single process. Each thread is a separate flow of execution, and they share the same memory space. Multi-threading can improve the performance of an application by allowing it to perform multiple tasks simultaneously.

### What is the difference between a heap and a stack?

A heap and a stack are both memory regions used in computer programming. A stack is a region of memory used to store temporary data, such as local variables and function calls. A heap is a region of memory used for dynamic memory allocation. The primary difference between a heap and a stack is that the heap is allocated dynamically, while the stack is allocated statically.

## Conclusion

The Infosys technical interview is designed to evaluate your technical skills, problem-solving abilities, analytical and logical reasoning skills. By preparing well and understanding the common questions asked during the interview, you can confidently answer the questions and impress your interviewers.

Q. What is the format of the Infosys technical interview?

A. The Infosys technical interview usually involves a combination of technical questions, logical reasoning, and problem-solving. The interview may also include questions related to your work experience and your understanding of the company's culture.

Q. How long does the Infosys technical interview last?

A.  The length of the Infosys technical interview varies depending on the role and the interviewer. Generally, the interview can last from 30 minutes to an hour or more.

Q. What are some common technical questions asked during the Infosys technical interview?

A. Some common technical questions asked during the Infosys technical interview include questions on programming languages, data structures, algorithms, databases, and software engineering concepts.

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

A. To prepare for the Infosys technical interview, you should revise your technical concepts, practice coding problems, and work on improving your problem-solving and logical reasoning skills.

##### It provides a wide range of courses in areas such as Artificial Intelligence, Cloud Computing, MobileApplication Development. Perfect eLearning, with its cutting-edge technology and expert instructors from Adobe, Microsoft, PWC, Google, Amazon, Flipkart, Nestle and Info-edge is the perfect place to start your IT education.

Perfect eLearning in Faridabad provides the training and support you need to succeed in today's fast-paced and constantly evolving tech industry, whether you're just starting out or looking to expand your skill set.

##### There's something here for everyone.Perfect eLearning provides the best online courses as well as complete internship and placement assistance.

Keep Learning, Keep Growing.

If you are confused and need Guidance over choosing the right programming language or right career in the tech industry, you can schedule a free counselling session with Perfect eLearning experts.

## Hey it's Sneh!

### What would i call you?

Great !

Our counsellor will contact you shortly.