Infosys Senior Systems Engineer Interview Questions, Process, and Tips

Q1. Java Oops concepts, collections, spring frameworks, hibernate, security
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Q2. How do you configure path externally in spring framework
Ans. 
To configure path externally in Spring Framework, use @PropertySource and @Value annotations.
• Use @PropertySource to specify the external properties file

• Use @Value to inject the property value into the bean

• Example: @PropertySource("classpath:config.properties") @Value("${path}") private String path;

• Make sure to include the necessary dependencies in the pom.xml file
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Q3. Previous experiences
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Q1. Real life examples of OOPS concepts
Ans. 
Real life examples of OOPS concepts include inheritance in genetics, encapsulation in security systems, and polymorphism in programming languages.
• Inheritance: Genetic traits passed down from parents to offspring.

• Encapsulation: Security system where only authorized users can access certain information.

• Polymorphism: Overloading a method with different parameters in programming languages.
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Q1. Fetch a list of values from nested objects and find their average using stream api
Ans. 
Use stream API to fetch values from nested objects and find their average
• Use flatMap to flatten the nested objects into a single stream

• Use mapToInt to extract the values as integers

• Use average method to calculate the average of the values
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Aptitude is the most hardest one of you didn't study for it.But you can refer any general aptitude book for the preparation. Clearing aptitude means you have cleared 85% of your selection process.

Q1. In this round HR checks your confidence and validates a very little of your basic knowledge. Basically you must know about the things you have learnt and you have implemented.
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English, date and day questions etc

Q1. Not that tough for freshers
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Q2. OOPS concepts with real world examples
Ans. 
OOPS concepts are fundamental principles in object-oriented programming that help in organizing and designing code efficiently.
• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: a car object with properties like color and methods like start() and stop().

• Inheritance: Allowing a class to inherit properties and behavior from another class. Example: a class Animal with subclasses...read more
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