Infosys System Engineer Interview Questions and Answers

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...read more
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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...read more
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Questions regarding aptitude, pseudocode, and communication skills.

Q1. Tell me about yourself.
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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 ...read more
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It is very easy, questions on all topics are covered.

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...read more
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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
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Q1. Will you able to relocate?
Ans. 
Yes, I am willing to relocate for the right opportunity.
• I am open to relocating for the right job opportunity

• I have relocated for previous positions and am comfortable with the process

• I understand the importance of being flexible and adaptable in the field of engineering
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Q2. Why Infosys?
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Infosys is a global leader in technology services and consulting, known for its innovative solutions and commitment to excellence.
• Infosys has a strong reputation for delivering high-quality technology solutions to clients worldwide.

• The company offers a wide range of opportunities for professional growth and development.

• Infosys has a culture of innovation and collaboration, which aligns with my own values and career goa...read more
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General Aptitude , Grammar MCQ and Essay Writing

Q1. Tell me about yourself?
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Q2. Which Language are you Familiar ?
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Q3. Basic Questions from oops and dbms
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Q4. Why did you choose Infosys ?
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Q5. Questions from my project
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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
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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)
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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
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Q2. Subqueries, views, joins in SQL
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Basic verbal abilitic and logical reasoning question ,pseudocode and essay writing

Q1. About my internship and projects
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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.
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Q3. Osi models and basic networking
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Q4. Why do u want to join infosys
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Q5. Favourite sport
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