Infosys Interview Questions By ScholarHat

Frequently Asked Infosys Interview Questions
Infosys Interview Questions
Infosys interview questions are designed to assess a candidate's problem-solving abilities and coding
eﬃciency. You should be ready to handle a variety of coding challenges, from basic concepts like loops and
arrays to more complex topics involving algorithms and data structures.
What to Expect in Infosys Interviews?
When preparing for an Infosys interview, it’s essential to understand the interview process and the kinds of
questions you’ll face. Depending on your role, you might encounter technical, behavioral, or managerial
questions. So, having a clear idea of the interview process can help you ace it.
Infosys interview process generally consists of multiple rounds. Here's an overview of what to expect:
In this interview tutorial, I will explain crucial questions, provide guidance on how to approach each one, and
explain why mastering these topics is essential for excelling in the interview and establishing a solid foundation
for your tech career.
Understanding the Infosys Interview Process

Section
Eligibility Criteria
Interview Rounds
Online Application
Recruitment Process
Technical
Questions (Freshers)
Interview
Technical
Questions (Experienced)
Interview
Submit your resume and application through the Infosys careers portal.
Advanced Programming: Multithreading, Design Patterns, and Distributed
Systems.
System Design: Designing scalable and fault-tolerant architectures using
Microservices and Scalability principles.
Cloud Computing: Proficiency with Azure and AWS services, CI/CD
pipelines, and Kubernetes.
Arrays: Basic array operations and problem-solving using single and
multidimensional arrays.
Strings: String manipulation, pattern matching, and related problems.
Linked Lists: Implementing singly and doubly linked lists, as well as
operations like insertion, deletion, and traversal.
Sorting Algorithms: Common algorithms like quicksort, mergesort, and
bubble sort, with examples in Java.
Description
Educational Qualifications: A degree in Computer Science, Engineering, or
related fields.
Minimum Academic Performance: A minimum of 6.5 CGPA or equivalent.
Work Authorization: Valid work authorization or visa (if required for the
location).
Technical Interviews: Assessment of data structures, algorithms, and
coding proficiency.
System Design: For experienced candidates, evaluating scalable and
efficient system designs using Design Patterns and Microservices.
Behavioral Interviews: Assessment of leadership skills, teamwork, and
adaptability.
HR Round: A final round to discuss relocation, career goals, and cultural fit
at Infosys.
Online Assessment: Includes questions on aptitude, logical reasoning,
and technical skills.
Coding Round: Programming challenges, typically using C, C++, Java, or
Python.
Technical Interviews: Multiple rounds assessing problem-solving skills,
coding, and system design knowledge.
Behavioral Interviews: Focus on communication, teamwork, and
alignment with Infosys values.

HR Interview Questions
Focus: Java collections framework.
What to Expect:
Why do you want to join Infosys?
Describe a time when you faced a challenging situation and how you
handled it.
How do you prioritize and meet deadlines?
Are you open to relocating or traveling for work?
Tell me about a time you worked in a team and managed a conﬂict
effectively.
Focus: Object comparison and memory handling.
What to Expect:
Explain the distinction between comparing references (==) and comparing object contents (.equals()).
Describe how this works with strings and other objects.
Sample Answer: "== checks if two references point to the same memory location, while .equals() checks if the
contents of two objects are the same."
public class StringComparison {
If you’re applying for a technical role, be prepared to demonstrate your knowledge through coding, problem-
solving, and technical discussions. Below are some common technical roles and questions for each.
If you’re preparing for an interview as a Java developer at Infosys, you'll encounter some key questions that test
your understanding of Java concepts and programming principles. It’s essential to grasp both the fundamental
and advanced topics to showcase your skills effectively.
Technical Infosys Interview Questions Freshers and
Experienced
Infosys Interview Questions For Java Developer
Q1. What is the difference between "==" and ".equals()" in Java?
Q2. Explain the difference between ArrayList and LinkedList in Java.
public static void main(String[] args) {
String str1 = new String("Java");
String str2 = new String("Java");
}
System.out.println(str1 == str2); // false, because they refer to different objects
System.out.println(str1.equals(str2)); // true, because the content is the same
}

Explain the differences between these two List implementations.
Discuss when to use each type of list based on performance.
Sample Answer: "ArrayList provides fast access by index, while LinkedList offers faster insertions and
deletions."
Focus: Java exception handling.
What to Expect:
Explain how try-catch blocks work.
Discuss the use of the ﬁnally block.
Sample Answer: "Java handles exceptions using try-catch blocks, and the ﬁnally block ensures cleanup code
runs."
import java.util.*;
arrayList.add("Java");
linkedList.add("Java");
public class ListExample {
List arrayList = new ArrayList<>();
List linkedList = new LinkedList<>();
public class ExceptionExample {
}
try {
int result = 10 / 0; // This will throw ArithmeticException
} catch (ArithmeticException e) {
System.out.println("Exception: " + e.getMessage());
} finally {
System.out.println("This block is always executed.");
}
}
}
System.out.println("ArrayList: " + arrayList.get(0)); // Constant time access
System.out.println("LinkedList: " + linkedList.get(0)); // Linear time access
}
Q3. How does exception handling work in Java?
Q4. What is the purpose of the static keyword in Java?

Focus: Static members in Java.
What to Expect:
Explain how static variables and methods are shared across instances.
Sample Answer: "The static keyword makes a variable or method belong to the class itself rather than to
instances of the class."
Focus: Java collection framework.
What to Expect:
Explain how ArrayList and Vector differ in terms of synchronization and performance.
Sample Answer: "ArrayList is not synchronized, making it faster but not thread-safe. Vector is synchronized but
slower."
import java.util.*;
arrayList.add("Java");
vector.add("Java");
public class ArrayListVsVector {
List arrayList = new ArrayList<>();
List vector = new Vector<>();
public class StaticExample {
static int count = 0; // Static variable
}
System.out.println("ArrayList: " + arrayList.get(0));
System.out.println("Vector: " + vector.get(0));
}
public StaticExample() {
count++; // Increment static variable when an object is created
}
}
StaticExample obj1 = new StaticExample(); StaticExample obj2 = new
StaticExample();
System.out.println("Object count: " + StaticExample.count); // Output: 2
}
Q5. What is the difference between ArrayList and Vector in Java?

Q7. What is the difference between method overloading and method
overriding in Java?
Q6. What is the difference between final, finally, and finalize in Java?
Focus: Polymorphism in Java.
What to Expect:
Explain how method overloading allows multiple methods with the same name but different parameters
while overriding allows a subclass to provide a specific implementation of a method already defined in
its superclass.
Sample Answer: "Method overloading means multiple methods with the same name but different signatures,
while method overriding means redefining a method in a subclass."
Focus: Java keywords.
What to Expect:
Explain the distinct purposes of final (for constants and inheritance), finally (for exception handling),
and finalize (for garbage collection).
Sample Answer: "final is used for constants and inheritance, finally for handling cleanup in exception handling,
and finalize is a method used by the garbage collector."
class FinalizeExample {
}
@Override
protected void finalize() {
System.out.println("Finalize called");
}
public class FinalExample {
final int x = 10; // final variable, cannot be modified
}
FinalizeExample finalizeExample = new FinalizeExample();
finalizeExample = null;
System.gc(); // Calls finalize method
}
try {
int result = 10 / 0;
} finally {
System.out.println("This block is always executed.");
}

class Child extends Parent {
}
@Override
void display() {
System.out.println("Child method");
}
class Parent {
}
void display() {
System.out.println("Parent method");
}
void display(int num) {
System.out.println("Overloaded method with int: " + num);
}
public class OverloadingOverridingExample {
Parent parent = new Child();
parent.display(); // Calls overridden method in Child class
}
void display(String str) {
System.out.println("Overloaded method with String: " + str);
}
OverloadingOverridingExample example = new OverloadingOverridingExample();
example.display(10); // Calls overloaded method
example.display("Java"); // Calls overloaded method
}
Read More: Top 50+ Java Interview Questions & Answers
If you’re getting ready for an interview in automation testing at Infosys, be prepared for some important
questions that check your knowledge of testing and automation tools. It’s good to know different testing
methods and best practices so you can show what you know effectively.
Infosys Automation Testing Interview Questions
Q8. What is Selenium, and how is it used in automation testing?

Focus: String manipulation in Python.
What to Expect:
You will be asked to write code to reverse a string.
Sample Answer: "In Python, you can reverse a string using slicing. Here's how you can do it:"
Focus: Understanding recursion and iteration.
What to Expect:
You might be asked to solve a problem using either recursion or iteration.
Sample Answer: "To find the factorial of a number, we can use recursion or a loop. Here's a recursive solution."
Ans: Selenium is an open-source tool for automating web browsers. It supports multiple programming
languages and allows you to create scripts to test web applications.
If you’re preparing for an interview as a Python developer at Infosys, you’ll want to get ready for some key
questions that assess your understanding of Python and its applications. Knowing the basics, as well as
more advanced topics, will help you showcase your skills effectively.
Ans: Selenium WebDriver interacts with web elements through its methods like findElement, sendKeys, click,
getText, and getAttribute.
Ans: The commonly used locators in Selenium include ID, Name, XPath, CSS Selector, Class Name, Tag Name,
and Link Text.
Infosys Python Developer Interview Questions
Q11. How would you reverse a string in Python?
Q9. What are the different types of locators in Selenium?
Q12. How would you find the factorial of a number in Python?
Q10. How does Selenium WebDriver interact with web elements?
def reverse_string(s):
return s[::-1]
def factorial(n):
if n == 0 or n == 1:
return 1
# Test the function
input_str = "Python"
print(reverse_string(input_str)) # Output: "nohtyP"

def remove_duplicates(lst):
return list(set(lst))
# Test the function
print(factorial(5)) # Output: 120
else:
return n * factorial(n - 1)
# Test the function
print(is_prime(7)) # Output: True
print(is_prime(10)) # Output: False
def is_prime(n):
if n <= 1:
return False
for i in range(2, int(n ** 0.5) + 1):
if n % i == 0:
return False
return True
# Test the function
input_list = [1, 2, 2, 3, 4, 4, 5]
print(remove_duplicates(input_list)) # Output: [1, 2, 3, 4, 5]
Q15. How do you merge two dictionaries in Python?
Q13. How do you check if a number is prime in Python?
Q14. How do you remove duplicates from a list in Python?
Focus: Working with dictionaries.
Focus: Working with lists and sets in Python.
What to Expect:
You will need to ﬁnd a way to remove duplicates from a list.
Sample Answer: "To remove duplicates from a list, we can convert it to a set (since sets do not allow
duplicates) and then convert it back to a list."
Focus: Algorithm to check prime numbers.
What to Expect:
You will be expected to write a function to check whether a number is prime.
Sample Answer: "To check if a number is prime, we need to test if it is divisible by any number other than 1 and
itself."

Focus: Basic list operations in Python.
What to Expect:
You will be expected to find the largest element in a list.
Sample Answer: "You can use the built-in max() function to find the largest element in a list."
What to Expect:
You will be expected to merge two dictionaries, handling possible key conflicts.
Sample Answer: "To merge two dictionaries, you can use the update() method or the new merge operator (|) in
Python 3.9 and above."
Focus: Sorting and lambda functions in Python.
What to Expect:
You will be asked to sort tuples in a list by the second element.
Sample Answer: "You can use the sorted() function with a custom sorting key. Here’s how you can do it using a
lambda function."
def find_largest(lst):
return max(lst)
dict1 = {'a': 1, 'b': 2} dict2 =
{'b': 3, 'c': 4}
tuples = [(1, 2), (3, 1), (5, 4), (2, 3)]
# Test the function
input_list = [10, 20, 4, 45, 99]
print(find_largest(input_list)) # Output: 99
# Using update()
dict1.update(dict2)
print(dict1) # Output: {'a': 1, 'b': 3, 'c': 4}
# Using merge operator (Python 3.9+)
dict3 = dict1 | dict2
print(dict3) # Output: {'a': 1, 'b': 3, 'c': 4}
sorted_tuples = sorted(tuples, key=lambda x: x[1])
print(sorted_tuples) # Output: [(3, 1), (1, 2), (2, 3), (5, 4)]
Q17. How do you find the largest element in a list?
Q16. How would you sort a list of tuples based on the second element in each
tuple?

Read More: Top 50+ Python Interview Questions & Answers
Read More: Top 50+ Angular Interview Questions & Answers
Ans: Keys help React identify which items have changed, been added, or removed. They should be unique to
ensure eﬃcient updating of the UI.
Ans: Two-way data binding in Angular allows data to be synchronized between the model and the view. In
Angular, it is achieved using the [(ngModel)] syntax.
Ans: Directives in Angular are special markers on a DOM element that tell Angular to perform a speciﬁc action
or behavior. Examples include ngFor, ngIf, and custom directives created by developers.
Ans: Dependency injection in Angular provides a way to supply dependencies, like services, into components or
other services. This reduces coupling and increases modularity.
Ans: A state is an object in React that holds dynamic values for a component. When the state changes, React
automatically updates the component.
As you prepare for your interview as an Angular developer at Infosys, it's crucial to be ready for questions that
assess your grasp of Angular and web development fundamentals. Understanding the framework's
functionalities and best practices will empower you to demonstrate your skills effectively.
While preparing for your interview as a React developer at Infosys, it's vital to expect questions that will
evaluate your knowledge of React and web development principles. Learning about the library's important
features and best practices will help you effectively showcase your skills.
Q18. What are Angular Directives?
Q22. Explain the concept of state in React.
Infosys React Developer Interview Questions
Q19. What is two-way data binding in Angular?
Infosys Angular Developer Interview Questions
Q23. What are React Hooks, and why are they used?
Q21. What is the purpose of using a key prop in React?
Q20. What is the purpose of Angular’s dependency injection?

Read More: Top 50+ React Interview Questions & Answers
During the managerial round, interviewers often focus on your leadership skills, decision-making abilities, and
how well you handle challenges. Here, you’ll need to demonstrate your experience and strategic thinking.
Ans: When faced with a conflict, I first listen to both sides to understand the issue. Then, I look for common
ground and facilitate a solution that works for everyone.
Ans: When under pressure, it's essential to evaluate the urgency and importance of each task. You can create a
priority list and focus on tasks that have the most significant impact on project deadlines.
Ans: JCL (Job Control Language) is used to communicate with the mainframe operating system to execute
batch jobs.
Ans: COBOL (Common Business-Oriented Language) is a high-level programming language used for business
and finance applications. Its basic structure includes divisions like Identification, Environment, Data, and
Procedure.
When preparing for an interview as a Mainframe developer at Infosys, it's essential to be ready for questions
that assess your understanding of mainframe technology and programming concepts. Grasping the
fundamental principles and best practices in mainframe development will allow you to showcase your skills
effectively.
Ans: React Hooks are functions that let you use state and other React features without writing a class. They
simplify component logic and increase code reusability.
Ans: VSAM (Virtual Storage Access Method) is used to organize and access files on the mainframe. It
supports key-sequenced, entry-sequenced, and relative record datasets.
Q25. What is JCL in a mainframe?
Q24. What is COBOL and its basic structure?
Infosys Mainframe Developer Interview Questions
Q28. Describe a situation where you resolved a team conflict.
Q27. How do you prioritize tasks when working under pressure?
Q26. Explain the purpose of VSAM in a mainframe environment.
Infosys Manager Round Interview Questions

Q32. How do you handle failure?
Ans: I view failure as a learning opportunity. When I encounter setbacks, I analyze what went wrong, adjust my
approach, and apply the lessons learned to future projects.
Q30. Why do you want to work for Infosys?
Ans: I am impressed by Infosys's commitment to innovation and its strong emphasis on employee
development. I believe this aligns with my career aspirations and values.
Q31. Where do you see yourself in five years?
Ans: In five years, I see myself growing within Infosys, taking on more responsibilities, and potentially leading
projects that contribute to the company’s success.
Q34. How does client administration work in SAP Basis?
Q29. How do you ensure that your team meets deadlines?
Ans: When managing a team, I set clear goals and timelines. I regularly check in on progress and provide
support where needed, ensuring that everyone is on track to meet their deadlines.
Infosys SAP Basis Interview Questions Q33. What is SAP Basis, and what are
its main responsibilities?
Ans: SAP Basis serves as the foundation for the SAP landscape. It covers user administration, system
monitoring, troubleshooting, and performance tuning. The primary responsibilities include system management,
installation, and maintenance of SAP environments.
The HR round typically focuses on your fit within the company culture, your career goals, and how well you align
with Infosys's values. Here are some common HR questions you may encounter:
If you want to be confident about the HR round, you can go through these Most Commonly Asked HR Interview
Questions and Answers. Now, let’s get into the specific interview questions for different roles and experiences
at Infosys.
As you get ready for your interview, it’s important to expect questions that focus on the job you’re applying for.
These questions will look at your skills, experiences, and how you deal with challenges. Knowing the main tasks
and expectations of the role will help you show your strengths and how you can contribute to the team.
Role-Specific Interview Questions
Infosys HR Round Interview Questions

Ans: The Transport Management System (TMS) in SAP Basis is used to transfer development objects from one
SAP environment to another. It enables the seamless movement of configurations, enhancements, and
customizations across the SAP landscape.
Ans: The BPM lifecycle includes modeling, execution, monitoring, and optimization. These stages help
streamline business processes from conception to continuous improvement, enabling organizations to achieve
scalability and flexibility in operations.
Ans: The .NET Framework is a software development platform developed by Microsoft. It provides a large class
library called the Framework Class Library (FCL) and supports multiple programming languages, primarily C#
and VB.NET.
Ans: Business Process Management (BPM) focuses on designing, analyzing, and optimizing an organization's
processes. It aims to increase efficiency, reduce costs, and improve customer satisfaction by managing end-to-
end workflows.
Ans: BPM software helps organizations automate their processes, provide better visibility into workflows,
enhance collaboration among teams, and support continuous improvement initiatives.
Ans: Client administration in SAP allows for user data management and separation of business data. It helps
create different clients within the same SAP system, supporting separate environments for development,
testing, and production.
Q37. Can you explain the BPM lifecycle?
Q35. What is Transport Management in SAP Basis?
Q38. How does BPM software benefit organizations?
Q40. Explain the concept of the Common Language Runtime (CLR).
Additional Technical Areas Interview Questions
Infosys Dotnet Interview Questions
Q39. What is the .NET Framework, and what are its main components?
Infosys BPM Interview Questions
Q36. What is Business Process Management (BPM), and why is it crucial for
organizations?

Read More: Top 50 .NET Interview Questions and Answers
Ans: In C#, a Class is a reference type, whereas a Struct is a value type. Classes support inheritance, while
structs do not. Additionally, classes can be null, whereas structs cannot.
Ans: Content Providers are a component of Android that manages access to a structured set of data. They
allow data sharing between applications and provide a standard interface for querying and manipulating data.
Ans: An explicit intent is used to start a speciﬁc component (e.g., an activity) by name, while an implicit intent is
used to request an action from any app component that can handle it based on the action, data, or category-
speciﬁed.
Ans: The Common Language Runtime (CLR) is the virtual machine component of the .NET Framework. It
manages the execution of .NET programs, providing services such as memory management, exception
handling, and security.
Ans: A Power Programmer is responsible for handling complex coding tasks, optimizing existing code, and
ensuring best practices in software development. They also mentor junior developers and assist in
architectural decisions.
Ans: The Android Activity Lifecycle consists of several states, including Created, Started, Resumed, Paused,
Stopped, and Destroyed. Understanding this lifecycle is crucial for managing resources and handling user
interactions effectively.
Ans: Code quality and maintainability can be ensured through practices like code reviews, writing unit tests,
adhering to coding standards, and utilizing design patterns effectively.
Q44. What are Content Providers in Android?
Infosys Android Developer Interview Questions
Q42. What is the Android Activity Lifecycle?
Infosys Power Programmer Interview Questions
Q45. What is the role of a Power Programmer in a project?
Q46. How do you ensure code quality and maintainability?
Q41. What are the differences between a Class and a Struct in C#?
Q43. Explain the difference between an implicit intent and an explicit intent.

Q47. Explain the significance of version control in software development.
Ans: Version control is essential for managing changes to code over time. It allows multiple developers to
collaborate efficiently, track changes, and revert to previous versions if necessary, ensuring better code
integrity and project management.
Research: Understand Infosys’s values, culture, and recent developments in the industry.
Practice: Conduct mock interviews and practice common interview questions.
Dress Professionally: Your appearance matters, so dress appropriately for the interview.
Be Confident: Maintain eye contact, speak clearly, and show enthusiasm about the opportunity.
Follow-up: After the interview, send a thank-you email to express your appreciation for the opportunity.
Getting ready for an interview with Infosys means understanding the specific requirements of the position
you’re applying for, whether it’s technical, project management, or any other role. Practicing common
interview questions, showing strong problem-solving skills, and highlighting your ability to work well in
teams can significantly boost your chances of success. With careful preparation and confidence, you can
present yourself as a strong candidate to Infosys’s hiring team.
Tips for Acing the Infosys Interview
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Infosys Interview Questions By ScholarHat

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