Infosys Software Developer Interview Questions, Process, and Tips

Q1. Spring framework?
Add your answer
Q2. Which to use between Spring Boot and Spring MVC?
Ans. 
Spring Boot is preferred for rapid development and microservices, while Spring MVC is used for traditional web applications.
• Spring Boot is preferred for rapid development of microservices due to its convention over configuration approach.

• Spring MVC is used for traditional web applications where more customization and configuration is required.

• Spring Boot includes embedded servers like Tomcat, Jetty, and Undertow, makin...read more
Answered by AI
Add your answer
Q3. While supporting feature developed by you in production, how you came to know on which server application is running on?
Ans. 
By checking the server logs or using tools like 'ps' command or 'netstat' command.
• Check server logs for information on which server the application is running on.

• Use 'ps' command to list running processes and identify the server.

• Use 'netstat' command to check network connections and identify the server.
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