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Infosys Interview Questions for System Engineer

Last Updated on March 2, 2023 by Prepbytes

Infosys has a strong reputation for quality and reliability, and it is widely recognized as a leading provider of IT services. The company’s commitment to delivering high-quality solutions has helped it establish long-term relationships with its clients, many of which have been customers for over a decade.

About Infosys

Infosys is a multinational information technology services company based in India. It was founded in 1981 by seven engineers with a vision to provide innovative IT solutions and services to businesses worldwide. The company’s headquarters are located in Bengaluru, India, and it has a presence in over 50 countries, with offices in the Americas, Europe, Australia, and Asia. Infosys started as a software services company and has since evolved into a full-fledged digital transformation partner for its clients. The company provides a wide range of services, including consulting, software development, infrastructure management, and business process services. Infosys also offers industry-specific solutions for clients in areas such as banking, insurance, healthcare, and life sciences.

Why Infosys?

Infosys has a strong focus on innovation and invests heavily in research and development. The company has a number of research centers and innovation labs located around the world, where it conducts research into new technologies and develops cutting-edge solutions for its clients. Infosys is also actively involved in developing and promoting open-source technologies, and it has made significant contributions to a number of open-source projects. In this article, we will discuss some
infosys interview questions for system engineer role and also discuss about this role in Infosys.
Infosys is committed to corporate social responsibility and sustainability, and it has implemented a number of initiatives aimed at reducing its carbon footprint, promoting sustainability, and supporting local communities. The company has received recognition for its efforts in these areas, and it is widely regarded as a responsible corporate citizen.

Infosys has a large and highly skilled workforce, with over 250,000 employees located around the world. The company places a strong emphasis on employee development and provides its staff with a range of training and development opportunities, both on the job and through formal programs.

Infosys System Engineer Role

A System Engineer at Infosys is responsible for designing, implementing, and maintaining computer systems and infrastructure to meet the needs of clients. Some of the key responsibilities of a System Engineer at Infosys include:

  • Designing and implementing computer systems and networks to meet the needs of clients.
  • Providing technical support for clients, including troubleshooting problems and providing solutions to technical issues.
  • Maintaining and updating computer systems and software to ensure optimal performance and security.
  • Collaborating with other members of the technical team to plan and execute projects.
  • Staying up-to-date with the latest technology trends and advancements in the field.
  • Providing training and support to clients on the use of computer systems and software.
  • Participating in the design and implementation of disaster recovery and business continuity plans.
  • Assisting with the selection and implementation of security systems and protocols to protect client data.
  • Communicating effectively with clients to understand their needs and provide them with the best possible solutions.

The Infosys recruitment process for a System Engineer typically consists of the following steps:

  • Online Application: Submit an online application with your resume and cover letter.
  • Aptitude and Technical Test: Take an online test that measures your cognitive abilities and technical knowledge.
  • Technical Interview: Participate in a technical interview with an Infosys hiring manager. They will assess your technical knowledge and problem-solving skills.
  • HR Interview: Participate in an HR interview, where you will be asked questions about your work experience, motivation, and career goals.
  • Offer: If you successfully complete the previous steps, you may receive an offer letter from Infosys.

Note: The recruitment process may vary depending on the location and specific role you are applying for

Steps and Eligibility Criteria for Infosys System Engineer Interview Questions for Technical Round

Here are the steps to apply for the role of System Engineer at Infosys:

  • Visit the Infosys Career website: Go to the Infosys website and navigate to the Careers section to view current job openings.
  • Search for the System Engineer role: Use the search function to find the System Engineer role.
  • Create a profile: If you don’t have an account, create one by providing your personal details and resume.
  • Apply for the role: Click on the "Apply" button for the System Engineer role, and submit your updated resume and any other required documents.
  • Complete any online assessments: Infosys may require you to complete online assessments to evaluate your technical skills and aptitude.
  • Wait for a response: Infosys will review your application and if they find your profile suitable, they will schedule an interview.
  • Prepare for the interview: Brush up on your technical skills, research Infosys and the role, and practice your communication skills.

Note: The specific application process may vary depending on the country and location, so it’s advisable to check the Infosys Careers website for more details.

Eligibility Criteria:

  • Educational Qualification: A bachelor’s or master’s degree in computer science, information technology, or a related field is usually required.
  • Technical Skills: Familiarity with programming languages such as Java, C++, and Python, as well as knowledge of operating systems, databases, and networking is essential.
  • Communication Skills: Strong verbal and written communication skills are a must as the role involves regular interaction with clients and team members.
  • Problem-Solving Skills: The ability to analyze and solve complex technical problems is a key requirement for the role.
  • Adaptability: The technology landscape is constantly changing, and the ability to adapt and learn new technologies quickly is important.

Infosys System Engineer Interview Questions For Technical Round

Question 1. What is the OSI model and how does it relate to network communication?
Answer: The OSI model, or Open Systems Interconnection model, is a standard model for networking communication. It defines seven layers, each with specific functions, that work together to transmit data over a network. Understanding the OSI model helps to identify the layer where a communication issue may occur, making it easier to troubleshoot and resolve.

Question 2. What is the OSI model and what are its 7 layers?
Answer: The OSI model stands for Open Systems Interconnection and it is a standard model for networking communication. It defines 7 layers that work together to transmit data over a network. The 7 layers, from bottom to top, are Physical, Data Link, Network, Transport, Session, Presentation, and Application.

Question 3. What is virtualization and what are its benefits?
Answer: Virtualization is the creation of a virtual version of something, such as an operating system, server, storage, or network resources. The benefits of virtualization include cost savings through consolidation, easier management and maintenance, improved disaster recovery and business continuity, and increased agility and flexibility.

Question 4. Can you explain network security and its importance?
Answer: Network security is the practice of protecting the integrity and confidentiality of data that is transmitted over a network. It is important because it helps prevent unauthorized access, theft, and damage to sensitive information, as well as ensures the availability of critical systems and applications.

Question 5. Explain different levels of programming languages.
Answer: Programming languages can be broadly classified into different levels based on the level of abstraction they provide and the complexity of the tasks they can perform. The main levels of programming languages are

  • Machine language: The lowest-level language, consisting of binary code that can be directly executed by the computer’s hardware.
  • Assembly language: A low-level language that uses symbolic codes to represent machine instructions. It is closer to human-readable than machine language, but still requires a knowledge of the underlying hardware.
  • Low-level programming languages: These languages provide a higher level of abstraction than assembly languages, but are still tied to specific hardware architectures. Examples include C and C++.
  • High-level programming languages: These languages provide a higher level of abstraction and are not tied to specific hardware architectures. Examples include Java, Python, and JavaScript.
  • Scripting languages: A type of high-level programming language used for scripting, or automating simple tasks. Examples include Python and JavaScript.

Each level of programming language has its own strengths and weaknesses, and the choice of language will depend on the specific requirements of a project, including the desired level of abstraction, performance, and portability.

Question 6. What are the disadvantages of the Waterfall model?
Answer: The disadvantages of the waterfall model are:

  • Inflexibility: The Waterfall model does not allow for changes in the project scope once development has begun.

  • Lack of customer involvement: The customer is only involved at the beginning and end of the project, leading to a lack of customer involvement throughout the development process.

  • High risk: If a project requires a lot of uncertainty and there are significant changes in requirements, the Waterfall model may not be suitable.

  • Difficulty in testing: Testing is done at the end of the project, which can lead to the discovery of defects late in the development process, making it more difficult and expensive to fix them.
    Question 7. What is SDLC(Software Development Life Cycle)?
    Answer: Software Development Life Cycle (SDLC) is a systematic and structured approach to software development that outlines the phases involved in creating and maintaining software.
    The phases typically include

  • Requirements gathering and analysis: Collecting and defining requirements for the software project.

  • Design: Developing a plan for the software, including creating a detailed design and architecture.

  • Implementation or Development: Translating the design into code and creating the software.

  • Testing: Evaluating the software to ensure it meets the defined requirements and identifying and fixing any defects.

  • Deployment: Deploying the software to a production environment.

  • Maintenance: Maintaining and updating the software after it has been deployed.

The objective of the SDLC is to produce a high-quality software product that meets the customer’s needs and expectations within budget and on schedule. Different SDLC models may have different numbers of phases or different names for the phases, but the overall process is similar.

Question 8. What is your experience with virtualization technologies like VMware or Hyper-V?
Answer: I have extensive experience with virtualization technologies such as VMware and Hyper-V. I have deployed and managed virtual servers, storage, and networks, and have experience with features such as live migration, snapshots, and high availability.

Question 9. How do you troubleshoot network connectivity issues?
Answer: To troubleshoot network connectivity issues, I first gather information such as IP addresses, subnet masks, and default gateways. I then use tools such as ping and traceroute to verify connectivity and identify any points of failure. I also check switch and router configurations, firewall rules, and physical connections to ensure they are correct. If necessary, I can use packet capture tools like Wireshark to analyze network traffic and further identify the issue.

Question 10. What is your experience with server hardware, including RAID configurations and network-attached storage?
Answer: I have a strong understanding of server hardware, including RAID configurations and network-attached storage. I have experience with various types of RAID, such as RAID 0, 1, 5, and 10, and have set up and managed storage solutions using both internal and external disk arrays.

Question 11. How do you handle security incidents and implement security measures in your networks?
Answer: To handle security incidents, I follow established incident response procedures and work with the appropriate teams to contain, investigate, and resolve the issue. To implement security measures, I stay up to date with best practices and industry standards, such as NIST and CIS, and implement technical controls such as firewalls, intrusion detection/prevention systems, and encryption.

Question 12. What is DLL and EXE file extension?
Answer: DLL (Dynamic Link Library) and EXE (Executable) are file formats in the Microsoft Windows operating system.
DLL files are used for code and data sharing, while EXE files are used for executing specific tasks.

DLL: A DLL file is a library that contains code and data that can be used by multiple applications at the same time. It acts as a shared resource that can be loaded dynamically by the operating system or by an application when needed. The advantage of using DLL files is that they can be updated or changed without affecting the applications that use them, reducing the need for frequent application updates.

EXE: An EXE file is an executable file that can be run on a Windows computer. It contains a set of instructions that the operating system can use to perform a specific task, such as launching a program or displaying a message. An EXE file is typically used to install software on a Windows computer. When the EXE file is launched, the operating system reads the instructions and carries out the specified tasks.

Question 13. What is your understanding of DNS and DHCP?
Answer: DNS (Domain Name System) is a system that translates domain names into IP addresses. DHCP (Dynamic Host Configuration Protocol) is a protocol that dynamically assigns IP addresses and other network configuration parameters to devices on a network. I have experience configuring and troubleshooting both DNS and DHCP in a variety of environments.

Question 14. Can you discuss your experience with cloud computing platforms like AWS or Azure?
Answer: I have experience with cloud computing platforms such as AWS and Azure, including deploying and managing virtual machines, storage, and networking. I am familiar with various cloud services, such as EC2, S3, and VPC, and have experience with cloud migration and hybrid cloud environments.

Question 15. What is your experience with scripting languages such as Python or bash?
Answer: I have experience with scripting languages such as Python and bash. I use scripts to automate repetitive tasks, monitor systems, and extract data from logs and other sources. I have written scripts to perform tasks such as monitoring system performance, gathering system information, and automating software deployments.

Question 16. Differentiate between white box and black box testing
Answer: White box testing and black box testing are two types of software testing methodologies.

White box testing, also known as clear box or glass box testing, is a method of testing where the tester has complete knowledge of the internal workings of the software being tested. This type of testing focuses on the internal structure of the software and verifies the correctness of individual components. The tester examines the code, logic, and flow of the program to ensure that it meets specifications.

Black box testing, on the other hand, is a method of testing where the tester has no knowledge of the internal workings of the software. The tester only has access to the inputs and outputs of the system and focuses on verifying that the software behaves as expected from the user’s perspective. This type of testing focuses on functionality, performance, security, and user experience.

white box testing focuses on the internal structure of the software, while black box testing focuses on the external behavior of the software.

Question 17. Explain about Agile model.
Answer: Agile is a project management and software development approach that emphasizes flexibility, collaboration, and customer satisfaction. It was originally introduced as an alternative to traditional, more rigid approaches to software development, such as the waterfall model.

In an Agile environment, development work is divided into short iterations, called sprints, which typically last from one to four weeks. At the end of each sprint, a potentially shippable product increment is delivered. This allows the customer to continuously receive value and provide feedback to the development team, which can then be incorporated into future sprints.

The Agile approach values individuals and interactions, working software, customer collaboration, and response to change. The Agile framework provides a set of values and principles but leaves room for each team to adapt the approach to best fit their specific needs.

Question 18. Differentiate between DDL and DML commands in SQL.
Answer: DDL (Data Definition Language) and DML (Data Manipulation Language) are two categories of SQL commands.

DDL commands are used to define the structure of a database and its objects, such as tables, views, and indexes. Some common DDL commands in SQL include:

  • CREATE: used to create new objects in the database, such as tables, views, and indexes.
  • ALTER: used to modify the structure of existing objects in the database.
  • DROP: used to delete objects from the database.
  • TRUNCATE: used to remove all data from a table, but keep its structure intact.

DML commands, on the other hand, are used to manipulate data stored in a database. Some common DML commands in SQL include:

  • SELECT: used to retrieve data from one or more tables in the database.
  • INSERT: used to insert data into a table in the database.
  • UPDATE: used to modify existing data in a table.
  • DELETE: used to delete data from a table.

Top 5 Coding Infosys System Engineer Interview Questions:

Here are the top 5 coding Infosys system engineer interview questions

Question 1. Write a program for returning a factorial of a given number

Sample Input:


Sample Output:

Factorial of this number   is 40320

Code Implementation:

#include <iostream>
using namespace std;

int factorial(unsigned int n)
    int res = 1, i;
    for (i = 2; i <= n; i++)
        res *= i;
    return res;

// Driver code
int main()
    int num;
    cout << "Factorial of this number  "<< " is "<< factorial(num) << endl;
    return 0;

Question 2. Write a program to find gcd or hcf of two number

Sample Input:

8 10

Sample Output:

GCD of 8 and 10 is 2

Code Implementation:

#include <iostream>
using namespace std;

int gcd(int a, int b)
    return b == 0 ? a : gcd(b, a % b);

// Driver program to test above function
int main()
    int a, b;
    cout<<"GCD of "<<a<<" and "<<b<<" is "<<gcd(a, b);
    return 0;

Question 3. Write a program to check if a number is a prime or not

Sample Input:


Sample Output:


Code Implementation:

using namespace std;

bool isPrime(int n)

    if (n <= 1)
        return false;
    if (n <= 3)
        return true;

    if (n % 2 == 0 || n % 3 == 0)
        return false;

    for (int i = 5; i * i >n;
    isPrime(n) ? cout << " true\n" : cout << " false\n";

    return 0;

Question 4. Write a program to find the nth number in Fibonacci series.

Sample Input:


Sample Output:


Code Implementation:

using namespace std;

int fib(int n)
    int a = 0, b = 1, c, i;
    if( n == 0)
        return a;
    for(i = 2; i <= n; i++)
    c = a + b;
    a = b;
    b = c;
    return b;

// Driver code
int main()
    int n;
    cout << fib(n);
    return 0;

Question 5. Write a program to check string is palindrome or not.

Sample Input:


Sample Output:


Code Implementation:

#include <bits/stdc++.h>
using namespace std;

string  Palindrome(string S)
    for (int i = 0; i < S.length() / 2; i++) {

        if (S[i] != S[S.length() - i - 1]) {
            return "No";

    return "Yes";

int main()
    string S;
    cout << Palindrome(S);

    return 0;

So these are some of the important technical Infosys interview questions for system engineer

Infosys System Engineer Interview Questions for HR Round

Question 1. Why do you want to join Infosys?
Answer: "Infosys is a good company to start anyone’s career, and it is also recognized as a great place to work. A job at Infosys includes a world-class training program, a good value system, great infrastructure and facilities, robust HR policies, attractive benefits, and a friendly work environment, in addition to the opportunity to work in India’s leading tech company. So these are the main reasons I want to work for Infosys."

Question 2. What is special about Infosys?
Answer: Infosys is a global leader in consulting, technology, and next-generation services. It was founded in 1981 and has its headquarters in Bengaluru, India. Infosys is known for its innovation, industry-focused services, and strong commitment to sustainability. The company has a reputation for providing excellent work environments and opportunities for professional growth. Infosys also has a strong focus on corporate social responsibility and has been recognized for its efforts in areas such as diversity and inclusion, education, and community development.

Question 3. Why we should we hire you in Infosys?
Answer: This is a fantastic opportunity for me to be interviewed at such a prestigious company. Infosys will undoubtedly be an outstanding platform for me to establish my skills and knowledge in the corporate world. Despite my inexperience, I can assure you that I will give my all and work to my full potential in order to contribute effectively to the growth and success of this great brand."

Question 4. What are your hobbies?
Answer: Don’t Talk About Controversial Hobbies. If your hobby is protesting for a political party or religious zealotry, then keep that to yourself. You don’t know the interviewer’s views, and you don’t want to cause any offense or bring up a difficult subject.
Be Careful About Personal Conversation. Don’t bring up personal issues except as they relate to your hobbies. You don’t want to talk about difficult health issues that concern you or your family during your interview. Don’t ask the interviewer personal questions.
Don’t Talk Too Much About Your Hobbies. Even though extracurricular activities are important if the interviewer asks you about them, they aren’t the most important part of the interview. Be brief in your answers.
Just simply add your hobbies like watching cricket, or playing any sports any example depends on the individual

Question 5. Where do you see yourself after 5 years?
Answer: Your answer can like be: Well, I’m very excited about this opportunity. Within the next five years, I hope to be recognized as an expert in this field. This job will undoubtedly provide me with an excellent opportunity to do the same. Because I already have some work experience, I am eager to take on managerial responsibilities in the coming years. Furthermore, I have the potential to lead projects, and if I can deliver, I am confident that this organization will give me the opportunity to become one of the forerunners. I’d like to mention that I’ve previously worked with some fantastic managers.I grew into a professional with excellent management skills under their tutelage. I wanted to be where I am now five years ago. So, in five years, I want to set realistic goals for myself and my organization. I will keep the same fire burning within me and hope to achieve my goal."

Question 6. Is the Infosys interview easy?
Answer: The Infosys interview is of moderate difficulty. If you have strong technical and communication skills, you should be able to breeze through all of the rounds. You can answer any difficult questions from the interviewer if you prepare properly for the Infosys interview.

Question 7. If required will you be able to work night shifts?
Answer: Always give a positive answer, yes I can work any shift you require; it is my responsibility to be available when you need me. If you have a proper security guard in place, I would be happy to work night and weekend shifts. Due to safety concerns, I am not comfortable working night shifts, but I am willing to work any other shift as needed.

So these are some of the important (HR round ) Infosys system engineer interview questions

Here are some tips for cracking an Infosys System Engineer interview and solving infosys interview questions for system engineer role.

  • Brush up on technical skills: Ensure that you have a good understanding of core computer science concepts and programming languages.
  • Familiarize yourself with Infosys: Research the company and its products, services, and clients to show your interest in the company.
  • Prepare for behavioral questions: Be prepared to answer questions about your past experiences, problem-solving skills, and team dynamics.
  • Practice communication skills: Infosys values clear and effective communication, so be prepared to articulate your ideas and thoughts in a concise and convincing manner.
  • Highlight your relevant experience: Emphasize any previous work or project experience that is relevant to the role of a system engineer at Infosys.
  • Be confident and enthusiastic: Show your passion for technology and a willingness to learn and grow as a professional.
  • Be ready to ask questions: Have a few questions ready to ask your interviewer, as it shows you’re engaged and interested in the role.

So these are the tips for solving infosys interview questions for system engineer role
Remember, preparation and confidence are key in any interview. Good luck!

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