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Infosys System Engineer Hardware Interview Questions and Answers for Freshers
16 Interview questions
Learning Python as a newbie
Start with basic syntax and data types
Practice coding exercises and challenges
Read documentation and watch tutorials
Join online communities and forums for support
Work on personal projects to apply knowledge
Data hiding is hiding the implementation details while abstraction is hiding the complexity of the system.
Data hiding is a technique to hide the implementation details of a class from the outside world.
Abstraction is a technique to hide the complexity of the system by providing a simplified interface.
Data hiding is achieved through access modifiers like private, protected, and public.
Abstraction is achieved throug...
ACID properties are a set of properties that ensure reliability and consistency of data in a database.
ACID stands for Atomicity, Consistency, Isolation, and Durability.
Atomicity ensures that a transaction is treated as a single, indivisible unit of work.
Consistency ensures that the database remains in a valid state before and after a transaction.
Isolation ensures that concurrent transactions do not interfere with ...
Binary search is an efficient algorithm for finding an item from a sorted list of items.
Requires a sorted array to function correctly.
Divides the search interval in half repeatedly.
Time complexity is O(log n), making it faster than linear search.
Example: Searching for 5 in [1, 2, 3, 4, 5, 6] results in finding 5 quickly.
A program to calculate factorial of a number.
Take input from user
Use a loop to multiply the number with all the numbers less than it
Print the result
OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
OOPS is based on four main concepts: encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation is the process of hiding the implementation details of an object from the outside world.
Inheritance allows a class to inherit properties and methods from another class.
Polymorphism allows objects...
DELETE is a SQL command used to remove rows from a table.
DELETE is used with the WHERE clause to specify which rows to remove
It can also be used with JOIN to delete rows from multiple tables
The deleted rows can be recovered using the ROLLBACK command
Scrum is an agile framework for managing and completing complex projects.
Scrum involves a team working together to complete a project in short iterations called sprints.
The team has daily stand-up meetings to discuss progress and plan for the day.
Scrum emphasizes flexibility and adaptability to changing requirements.
The product owner prioritizes the backlog of work and the team works to complete the highest priori...
Counting letter-pairs with same no. of letters left between them in the word SERVANT.
Identify the letter-pairs in the word SERVANT.
Count the number of letters between each pair.
Compare the count with the position of the pair in the word.
If they match, increment the count of such pairs.
Answer the total count of such pairs.
OOPs principles are encapsulation, inheritance, and polymorphism.
Encapsulation is the process of hiding implementation details from the user.
Inheritance allows a class to inherit properties and methods from another class.
Polymorphism allows objects to take on multiple forms or behaviors.
Abstraction is the process of hiding complex implementation details from the user.
Objects are instances of classes that contain d...
Infosys System Engineer Hardware Interview Experiences for Freshers
16 interviews found
Amit Kumar
Group of 5 with generic topic
(1 Question)
- Q1. Oops concept related question
Interview Preparation Tips
Anonymous
Selected
I applied via Company Website and was interviewed before Jan 2023. There were 2 interview rounds.
Questions about reasioning , quantitative aptitude and english .
(3 Questions)
- Q1. Tell me about yourself.
- Q2. What are your strengths and weakness ?
- Q3. Any programming language related concepts like oops, inheritance , etc.
Interview Preparation Tips
PrepInsta
I applied via PrepInsta and was interviewed in Sep 2021. There were 2 interview rounds.
(1 Question)
Aptitude
Reasoning
English
Pseudo code
- Q1. How many such letter-pairs are there in the word SERVANT, having the same no. of letters left between them in the word as they have in the series?
- Ans. 2
(6 Questions)
- Q1. Tell me about yourself
- Q2. What is OOPS concept?
- Ans.
OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
OOPS is based on four main concepts: encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation is the process of hiding the implementation details of an object from the outside world.
Inheritance allows a class to inherit properties and methods from another class.
Polymorphism allows objects of d...
- Q3. What is Scrum?
- Ans.
Scrum is an agile framework for managing and completing complex projects.
Scrum involves a team working together to complete a project in short iterations called sprints.
The team has daily stand-up meetings to discuss progress and plan for the day.
Scrum emphasizes flexibility and adaptability to changing requirements.
The product owner prioritizes the backlog of work and the team works to complete the highest priority it...
- Q4. What is Delete in SQL?
- Ans.
DELETE is a SQL command used to remove rows from a table.
DELETE is used with the WHERE clause to specify which rows to remove
It can also be used with JOIN to delete rows from multiple tables
The deleted rows can be recovered using the ROLLBACK command
- Q5. Write a program of factorial
- Ans.
A program to calculate factorial of a number.
Take input from user
Use a loop to multiply the number with all the numbers less than it
Print the result
- Q6. Why Infosys?
- Ans.
Infosys is a leading global technology services and consulting company.
Infosys has a strong reputation for innovation and quality in the industry.
The company offers a wide range of services and solutions to clients across various industries.
Infosys has a strong focus on employee development and provides ample opportunities for growth and learning.
The company has a global presence and works with some of the biggest name...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Jun 2022. There were 3 interview rounds.
1 hour duration. Quantitative and Verbal
(3 Questions)
- Q1. Questions about C++ call by reference
- Q2. Concepts of object oriented programming
- Q3. Sorting algorithm quick, bubble and merge
Interview Preparation Tips
I applied via Company Website and was interviewed in Apr 2022. There were 2 interview rounds.
General aptitude psudeo codes mainly mathmatics numerical ability
Interview Preparation Tips
Selected
I applied via Campus Placement and was interviewed before Mar 2022. There were 3 interview rounds.
Basic to intermediate level programming questions. To crack the coding round you should have good understanding of data structures, at least one programming language and good experience solving logical coding problems. I prefer you try hackerrank or leetcode problems before attending the coding round and also utilize other resources like web articles, youtube videos etc.
(3 Questions)
- Q1. What is the certificate you got from coursera? (looking at my resume)
- Ans. It is a certificate for completing the python data structures course. The course was provided by university of Michigan.
- Q2. How can I learn python? consider I'm a newbie
- Ans.
Learning Python as a newbie
Start with basic syntax and data types
Practice coding exercises and challenges
Read documentation and watch tutorials
Join online communities and forums for support
Work on personal projects to apply knowledge
- Q3. You can start from learning basic concepts of object oriented programming and data structures then move on to learning the fundamentals like conditional statements, loops, functions and classes. Once you a...
Interview Preparation Tips
Make sure you give responses positively. Have an answer for everything, even if you don't know something, still tell them how you can find the answer or where can you look for the answer. HR measures how positive you are and also how confident you are. So be positive and keep your answers brief, keep it concise.
Good luck you got this!
Skills evaluated in this interview
I applied via Company Website and was interviewed before Sep 2021. There were 2 interview rounds.
They ask Quantitative aptitude for basic numeracy, Logical reasoning to determine logical thinking and Verbal reasoning to test comprehension skills of the candidate. They also ask some Pseudo code questions which is basic coding questions.
(1 Question)
- Q1. It is different for everyone but for freshers it mainly focuses on any one programming language and having some OOPS knowledge.
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Apr 2021. There were 2 interview rounds.
Quantitative, Logical and English Aptitude test of 1 hour 30 mins.
(6 Questions)
- Q1. Tell me about yourself.
- Q2. Tell me about yourself.
- Q3. What are OOPs concepts?
- Q4. Describe difference between data hiding and abstraction.
- Ans.
Data hiding is hiding the implementation details while abstraction is hiding the complexity of the system.
Data hiding is a technique to hide the implementation details of a class from the outside world.
Abstraction is a technique to hide the complexity of the system by providing a simplified interface.
Data hiding is achieved through access modifiers like private, protected, and public.
Abstraction is achieved through abs...
- Q5. Asked an aptitude question to perform calculations related to tables and chairs in an office floor.
- Q6. What are ACID properties in DBMS?
- Ans.
ACID properties are a set of properties that ensure reliability and consistency of data in a database.
ACID stands for Atomicity, Consistency, Isolation, and Durability.
Atomicity ensures that a transaction is treated as a single, indivisible unit of work.
Consistency ensures that the database remains in a valid state before and after a transaction.
Isolation ensures that concurrent transactions do not interfere with each ...
Interview Preparation Tips
- Basic Java Computational problem
- Palindromes
- Fibonacci
- factorial
- Object Oriented Programming
- DBMS
Below were the questions:
1. Tell me about yourself.
2. What are OOPs concepts.
3. Describe abstraction and data hiding.
4. Asked an aptitude question, perform calculation related to tables and chairs in an office floor.
5. Why do you want to join us?
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Jul 2020. There were 4 interview rounds.
Interview Questionnaire
6 Questions
- Q1. Hi tell me something about yourself while looking at my resume
- Q2. Project related question what you did in the project
- Q3. Tell me about principles of OOPs
- Ans.
OOPs principles are encapsulation, inheritance, and polymorphism.
Encapsulation is the process of hiding implementation details from the user.
Inheritance allows a class to inherit properties and methods from another class.
Polymorphism allows objects to take on multiple forms or behaviors.
Abstraction is the process of hiding complex implementation details from the user.
Objects are instances of classes that contain data a...
- Q4. Some basic SQL commands like fetching data and joins
- Q5. Difference between Place by value and place by reference.
- Ans.
Place by value passes a copy of the value, while place by reference passes a reference to the original value.
Place by value creates a new copy of the value, while place by reference uses the original value.
Place by value is used for simple data types like integers and floats, while place by reference is used for complex data types like arrays and objects.
An example of place by value is passing an integer to a function,...
- Q6. Willing to relocate wherever company wants?
- Ans.
Yes, I am open to relocating for the company's needs, as it aligns with my career goals and adaptability.
Relocation offers opportunities for professional growth and new experiences.
I have previously relocated for a job, which helped me develop a broader perspective.
Being adaptable is crucial in the engineering field, and relocation can enhance collaboration with diverse teams.
I understand that some projects may require...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Walk-in and was interviewed before Dec 2020. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. Binary Search Programme
- Ans.
Binary search is an efficient algorithm for finding an item from a sorted list of items.
Requires a sorted array to function correctly.
Divides the search interval in half repeatedly.
Time complexity is O(log n), making it faster than linear search.
Example: Searching for 5 in [1, 2, 3, 4, 5, 6] results in finding 5 quickly.
- Q2. Real life example of Stack ,Queue, Binary Search.
- Ans.
Stack, Queue, and Binary Search are common data structures used in computer science.
Stack: Last In First Out (LIFO) data structure. Example: Undo/Redo feature in a text editor.
Queue: First In First Out (FIFO) data structure. Example: Print queue in a printer.
Binary Search: Efficient search algorithm for sorted arrays. Example: Searching for a word in a dictionary.
- Q3. SQL queries
Interview Preparation Tips
Skills evaluated in this interview
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