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Infosys System Engineer Interview Questions and Answers
665 Interview questions
Oops in Java stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
Oops in Java allows for the creation of classes and objects, encapsulation, inheritance, and polymorphism.
Classes are templates for objects, which contain attributes (variables) and methods (functions).
Inheritance allows a class to inherit attributes and methods from another class.
Polymorphism allows o...
Java is a high-level, object-oriented programming language known for its platform independence and robustness.
Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)
Java is object-oriented, allowing for modular and reusable code
Java has automatic memory management through garbage collection
Java has a large standard library with built-in functions for common tasks
Java is sta...
Truncate removes all rows from a table, drop removes the table itself, and delete removes specific rows from a table.
Truncate is a DDL command and cannot be rolled back. It resets the auto-increment value. Example: TRUNCATE TABLE table_name;
Drop is a DDL command used to remove a table from the database. Example: DROP TABLE table_name;
Delete is a DML command used to remove specific rows from a table based on a cond...
ASP.NET is a web application framework developed by Microsoft for building dynamic web sites, web applications, and web services.
Developed by Microsoft
Used for building dynamic web sites, web applications, and web services
Supports multiple programming languages like C# and VB.NET
ADO.NET is a data access technology in the .NET framework used to interact with databases in C# applications.
ADO.NET stands for ActiveX Data Objects .NET
It provides a set of classes for accessing and manipulating data from databases
It uses connection-oriented architecture to connect to databases
Examples include SqlConnection, SqlDataAdapter, and DataSet
What are the roles & responsibilities of a System Engineer at Infosys?
Read full roles & responsibilities 
C# is a programming language used in .NET framework for developing Windows applications, web services, and more.
C# is a programming language developed by Microsoft for building applications on the .NET framework
.NET is a software framework developed by Microsoft for building and running Windows applications
C# is widely used for developing web services, desktop applications, and more
C# is an object-oriented languag...
Infosys HR Interview Questions
LinkedList is a data structure where each element points to the next element in the sequence.
LinkedList is a linear data structure.
Each element in a LinkedList is called a node.
Nodes in a LinkedList contain data and a reference to the next node.
LinkedList allows for efficient insertion and deletion of elements.
Example: Singly LinkedList, Doubly LinkedList, Circular LinkedList.
One example of an app that uses Machine Learning & Artificial Intelligence is Netflix.
Netflix uses machine learning algorithms to recommend personalized content to users based on their viewing history.
It also uses AI to optimize video streaming quality and reduce buffering.
AI is used to analyze user behavior and preferences to improve the overall user experience.
Garbage collectors are programs that automatically manage memory by reclaiming memory that is no longer in use.
Garbage collectors automatically identify and reclaim memory that is no longer in use, preventing memory leaks.
They use algorithms like mark and sweep, reference counting, and generational collection to determine which memory can be reclaimed.
Garbage collectors can cause performance overhead due to the ne...
Artificial intelligence is the simulation of human intelligence processes by machines, especially computer systems.
AI involves machines performing tasks that typically require human intelligence, such as visual perception, speech recognition, decision-making, and language translation.
It encompasses various technologies like machine learning, natural language processing, computer vision, and robotics.
Examples of AI...
Infosys System Engineer Interview Experiences
1.2k interviews found
Anonymous
Selected
I appeared for an interview in Jan 2025.
The exam consists of seven sections, and the cutoff score is quite high; it is essential to complete the exam thoroughly.
(5 Questions)
- Q1. Can you tell me about yourself?
- Q2. Can you provide details about your internship experience?
- Ans.
I completed a 6-month internship at a tech company, where I worked on network infrastructure projects.
Assisted in setting up and configuring network devices such as routers and switches
Troubleshooted network issues and implemented solutions
Collaborated with team members on various IT projects
Participated in meetings with clients to discuss project requirements
- Q3. Given a puzzle to solve
- Q4. What can you tell me about your major projects?
- Ans.
I have worked on various major projects including designing and implementing network infrastructure, developing automation scripts, and optimizing system performance.
Designed and implemented a new network infrastructure for a large company, improving network speed and reliability
Developed automation scripts to streamline system monitoring and maintenance tasks, saving time and reducing errors
Optimized system performanc...
- Q5. What is the latest news you have heard regarding technology?
- Ans.
The latest news I heard regarding technology is the release of the new iPhone 13 with improved camera features.
Apple recently announced the release of the iPhone 13 series with upgraded camera capabilities.
The new iPhone 13 models come with improved low-light performance and cinematic mode for videos.
Apple also introduced the A15 Bionic chip for enhanced performance and battery life.
Interview Preparation Tips
Selected
There were a total of seven sections: verbal ability, logical reasoning, arithmetic problems, verbal reasoning, puzzles, pseudocodes, and essay writing, with each section having its own cutoff scores.
(5 Questions)
- Q1. What is the SQL query to retrieve the person with the highest salary?
- Ans.
Use SQL query with MAX function to retrieve person with highest salary.
Use SELECT statement to retrieve data
Use MAX function to find the highest salary
Use WHERE clause to filter out the person with highest salary
- Q2. Can you describe the projects you have worked on?
- Ans.
I have worked on projects involving network infrastructure upgrades, cloud migration, and cybersecurity enhancements.
Upgraded network infrastructure to improve performance and reliability
Migrated on-premise systems to the cloud for increased scalability and cost savings
Implemented cybersecurity measures such as firewalls and intrusion detection systems
Developed disaster recovery plans to ensure business continuity in c...
- Q3. Write a query to merge 2 tables?
- Ans.
Merge 2 tables using SQL query
Use the JOIN keyword to combine rows from both tables based on a related column
Specify the columns to be selected from each table
Use different types of joins like INNER JOIN, LEFT JOIN, RIGHT JOIN, or FULL JOIN based on the requirement
- Q4. Tell me about the internship that you have done?
- Ans.
I completed a system engineering internship at XYZ Company, where I worked on designing and implementing network infrastructure.
Worked on configuring routers and switches
Assisted in troubleshooting network issues
Collaborated with team members on project planning and execution
- Q5. Behavioural questions
I applied via Campus Placement and was interviewed in Nov 2024. There were 2 interview rounds.
Its very easy
Basic maths questions learned up to 10
Basic Apptitude questions
(5 Questions)
- Q1. Tell me about your self Hi My name is Vikram Adithya I am an hard working and passionate engineering student currently perceiveing in gokaraju rangaraju institute of engineering and technology .I stay with...
- Q2. Intervier asked about what kind of problems did you solved in leetcode? I said palindrome factorial matrix multiplication etc . Intervier said every one can solve this
- Q3. He asked me about my project role i said I have done documentation in my project he said every one can do that
- Q4. He asked me to write project code
- Q5. He asked me any questions
- Ans.
Asking questions in an interview shows your interest and helps clarify the role and company culture.
What does a typical day look like for a System Engineer here?
Can you describe the team I would be working with?
What are the biggest challenges currently facing the team?
How does the company support professional development and growth?
What technologies or tools does the team primarily use?
Interview Preparation Tips
If you crack it it is easy to get hired in infosys.
Selected
I applied via Campus Placement and was interviewed in Oct 2024. There were 2 interview rounds.
Duration was 1.5 hrs. Questions were asked on topics like aptitude, reasoning , puzzle solving and verbal ability. Also a topic was given on which candidates were expected to write an essay. Overall the difficulty level was easy to medium.
(8 Questions)
- Q1. Introduce Yourself
- Ans.
I am a dedicated System Engineer with a passion for optimizing systems and enhancing performance through innovative solutions.
Educational Background: Bachelor's degree in Computer Engineering from XYZ University.
Professional Experience: Over 5 years of experience in system design and implementation at ABC Corp.
Technical Skills: Proficient in Linux, Python, and cloud technologies like AWS and Azure.
Project Example: Led ...
- Q2. Explain about your projects (mentioned in resume)
- Ans.
I worked on various projects focusing on system integration, automation, and performance optimization in diverse environments.
Developed a cloud-based monitoring system that reduced downtime by 30%.
Implemented automation scripts using Python to streamline deployment processes.
Collaborated with cross-functional teams to enhance system performance, resulting in a 20% increase in efficiency.
Led a project to migrate legacy ...
- Q3. Have you got any certifications on cloud technologies?
- Ans.
Yes, I have certifications in AWS and Azure cloud technologies.
Certified AWS Solutions Architect
Microsoft Certified: Azure Administrator Associate
Completed training courses on Google Cloud Platform
- Q4. What do you do in your free time?
- Q5. Explain about Encapsulation (OOPS concept)
- Ans.
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit, known as a class.
Encapsulation helps in hiding the internal state of an object and restricting access to it.
It allows for data hiding, which prevents outside code from directly accessing an object's internal state.
Access to the data is typically controlled through public methods (getters and setters) defined in the cl...
- Q6. Tell about your previous intern/work experience if any
- Ans.
I interned at a tech firm where I developed automation scripts and improved system performance through monitoring tools.
Developed automation scripts using Python to streamline repetitive tasks, reducing processing time by 30%.
Collaborated with a team to implement a new monitoring tool that improved system uptime by 15%.
Participated in troubleshooting sessions, identifying and resolving system issues, which enhanced my ...
- Q7. What is the one thing that you can say about you for which haven't been noticed by others and credited?
- Ans.
I possess a unique ability to connect disparate ideas, fostering innovative solutions that often go unnoticed in team discussions.
I often synthesize information from various fields, leading to creative problem-solving. For example, I combined principles from software engineering and psychology to improve user experience in a project.
During team meetings, I frequently identify underlying patterns in discussions that oth...
- Q8. Questions about schooling, CGPA in college
- Ans.
Discussing my academic background, including CGPA, highlights my dedication and skills relevant to the System Engineer role.
Graduated with a CGPA of 3.8 in Computer Engineering, demonstrating strong analytical skills.
Participated in various projects during college, such as developing a network simulation tool.
Consistently ranked in the top 10% of my class, reflecting my commitment to academic excellence.
Engaged in extr...
Interview Preparation Tips
Skills evaluated in this interview
Selected
I appeared for an interview in Feb 2025.
(2 Questions)
- Q1. What are sorting algorithms, and can you explain their various types and uses?
- Ans.
Sorting algorithms arrange data in a specific order, crucial for efficient data processing and retrieval.
Types of sorting algorithms include: Bubble Sort, Quick Sort, Merge Sort, and Heap Sort.
Bubble Sort is simple but inefficient for large datasets; it repeatedly steps through the list.
Quick Sort is efficient for large datasets, using a divide-and-conquer approach to sort elements.
Merge Sort divides the array into hal...
- Q2. What is the Software Development Lifecycle (SDLC)?
- Ans.
The Software Development Lifecycle (SDLC) is a structured process for developing software applications through various stages.
1. Requirements Gathering: Identify user needs and system requirements.
2. Design: Create architecture and design specifications for the software.
3. Implementation: Write and compile the code based on design documents.
4. Testing: Validate the software through various testing methods (e.g., unit t...
Interview Preparation Tips
Selected
I appeared for an interview in Feb 2025.
Questions regarding aptitude, pseudocode, and communication skills.
(2 Questions)
- Q1. Tell me about yourself.
- Q2. What was your involvement in your college project?
- Ans.
I was the team leader for our college project on developing a smart home automation system.
Led a team of 5 members in designing and implementing the system
Responsible for project planning, delegating tasks, and ensuring deadlines were met
Implemented features such as voice-controlled lights, temperature control, and security cameras
Presented the project at a college exhibition and received positive feedback
Collaborated ...
Selected
It is very easy, questions on all topics are covered.
(2 Questions)
- Q1. What is abstraction and encapsulation?
- Ans.
Abstraction is hiding unnecessary details while encapsulation is bundling data and methods together.
Abstraction focuses on showing only essential features of an object while hiding unnecessary details.
Encapsulation involves bundling the data (attributes) and methods (functions) that operate on the data into a single unit.
Abstraction allows for easier understanding and management of complex systems.
Encapsulation helps i...
- Q2. Write a sql query to update a record
- Ans.
SQL query to update a record in a database table
Use the UPDATE statement followed by the table name
Set the column(s) to be updated using SET keyword
Specify the new values for the column(s) to be updated
Use WHERE clause to specify the condition for which record to update
(2 Questions)
- Q1. Will you able to relocate?
- Q2. Why Infosys?
Selected
I applied via Campus Placement and was interviewed in Oct 2024. There were 2 interview rounds.
General Aptitude , Grammar MCQ and Essay Writing
(5 Questions)
- Q1. Tell me about yourself?
- Q2. Which Language are you Familiar ?
- Ans.
I am familiar with several programming languages, including Python, Java, and Bash, which I use for automation and system management.
Python: Used for scripting and automation tasks, such as data processing and system monitoring.
Java: Familiar with building cross-platform applications and understanding object-oriented programming principles.
Bash: Proficient in writing shell scripts for automating system administration t...
- Q3. Basic Questions from oops and dbms
- Q4. Why did you choose Infosys ?
- Q5. Questions from my project
Interview Preparation Tips
I applied via Campus Placement
................................................................................
(2 Questions)
- Q1. What questions were asked regarding the projects you have completed?
- Ans.
Questions about projects completed in previous roles.
Asked to describe specific projects worked on
Inquired about the technologies used in the projects
Asked about the challenges faced and how they were overcome
Asked about the impact of the projects on the organization
Inquired about the team collaboration and communication during the projects
- Q2. What technologies were used in your project?
- Ans.
The project utilized a variety of technologies including cloud computing, virtualization, automation tools, and network protocols.
Cloud computing (e.g. AWS, Azure)
Virtualization (e.g. VMware, Hyper-V)
Automation tools (e.g. Ansible, Puppet)
Network protocols (e.g. TCP/IP, DNS)
(2 Questions)
- Q1. What are the principles of software engineering?
- Ans.
Principles of software engineering are guidelines that help in the development of high-quality software.
Requirements gathering and analysis
Design
Implementation
Testing
Maintenance
Documentation
Quality assurance
Version control
Continuous integration
Agile development
- Q2. Subqueries, views, joins in SQL
Vimal
I applied via Campus Placement and was interviewed in Oct 2024. There were 2 interview rounds.
Basic verbal abilitic and logical reasoning question ,pseudocode and essay writing
(5 Questions)
- Q1. About my internship and projects
- Q2. Area of intrest
- Ans.
My area of interest is in network security and data encryption.
I have experience in implementing firewalls and intrusion detection systems.
I am familiar with encryption algorithms such as AES and RSA.
I enjoy staying up-to-date on the latest security threats and technologies.
I have worked on securing networks for financial institutions and government agencies.
- Q3. Osi models and basic networking
- Q4. Why do u want to join infosys
- Ans.
I want to join Infosys for its innovative culture, growth opportunities, and commitment to technology and client success.
Infosys is a leader in technology and consulting, providing a platform for continuous learning and professional growth.
The company's commitment to innovation aligns with my passion for developing cutting-edge solutions, as seen in their work with AI and automation.
Infosys's diverse work environment f...
- Q5. Favourite sport
Interview Preparation Tips
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Infosys Interview FAQs
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