Infosys Software Developer Interview Questions, Process, and Tips

Math Reasoning and Engineering mathmatics

Array string function and recursion

Q1. What is dsa question
Ans. 
DSA stands for Data Structures and Algorithms, which are fundamental concepts in computer science for solving complex problems efficiently.
• DSA involves organizing and storing data in a way that allows for efficient retrieval and manipulation.

• Algorithms are step-by-step procedures for solving problems, while data structures are ways to store and organize data.

• Examples of DSA questions include sorting algorithms like qui
Answered by AI
Add your answer
Q2. What is dsa based programming
Ans. 
DSA based programming refers to using data structures and algorithms in programming to solve complex problems efficiently.
• DSA stands for Data Structures and Algorithms

• It involves implementing various data structures like arrays, linked lists, trees, graphs, etc.

• It also involves using algorithms like sorting, searching, dynamic programming, etc.

• DSA based programming helps in writing efficient and optimized code

• Example: ...read more
Answered by AI
Add your answer
Q3. What is logical thinking in programming
Ans. 
Logical thinking in programming involves the ability to break down complex problems into smaller, manageable parts and to create a step-by-step plan to solve them.
• Identifying patterns and relationships between different elements in the problem

• Breaking down the problem into smaller subproblems

• Creating a logical sequence of steps to solve each subproblem

• Using conditional statements and loops to control the flow of the pr...read more
Answered by AI
Add your answer

Q1. Asked About current Projects
Add your answer
Q2. Asked to code 2 problems
Add your answer

Q1. Asked core java and microservices questions
Add your answer
Q2. Current project and my role
Add your answer

3 coding questions in 3 hours.

Q1. Introduce yourself
Ans. 
I am a software developer with 5 years of experience in Java, Python, and SQL.
• 5 years of experience in Java, Python, and SQL

• Strong problem-solving skills

• Experience working in Agile development environment
Answered by AI
Add your answer
Q2. Explain about the projects you're working currently
Add your answer
Q3. Do you have work experience in backend technologies
Ans. 
Yes, I have 3 years of work experience in backend technologies including Java, Spring Boot, and SQL databases.
• Worked with Java for backend development

• Experience with Spring Boot framework

• Proficient in working with SQL databases like MySQL and PostgreSQL
Answered by AI
Add your answer
Q4. Asked few questions in mentioned technologies
Add your answer
Q5. Explain the logic of longest substring
Ans. 
Longest substring refers to finding the continuous sequence of characters within a string with no repeating characters.
• Iterate through the string and keep track of the characters seen so far

• Use a hashmap to store the index of each character

• Update the start index of the substring when a repeating character is encountered

• Calculate the length of the current substring and update the longest substring found so far
Answered by AI
Add your answer

Maintain a medium level of aptitude while keeping track of the time during the attempt.

Programming can be performed using languages such as Python, Java, C++, and others.

Q1. What is marker interface
Ans. 
A marker interface is an interface with no methods, used to mark classes for special treatment.
• Marker interfaces do not have any methods to implement.

• They are used to add metadata to classes at runtime.

• Examples include Serializable interface in Java.

• Marker interfaces are often used for type checking or to enable special behavior.
Answered by AI
Add your answer
Q2. What difference between abstract and interface
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructors, fields, and non-abstract methods, while interface cannot.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used to define a common behavior for subclasses, while interfaces are used to define a contract for classes ...read more
Answered by AI
Add your answer