IRIS Business Services Interview Questions, Process, and Tips

Q1. What is difference between .Net and .Net core
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Q1. OPPS concepts with deeps understandings
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Q2. SQL Constraints and SQL joins
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Q1. What is Project creep
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Project creep refers to the gradual expansion of a project's scope, timeline, and budget beyond the initial plan.
• Project creep occurs when additional features or requirements are added to a project without proper evaluation of the impact on resources.

• It can lead to delays in project completion, increased costs, and decreased quality of deliverables.

• Effective project management techniques such as regular monitoring and ...read more
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Q2. Waterfall vs Agile
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Waterfall is a linear approach to project management, while Agile is iterative and flexible.
• Waterfall follows a sequential process, while Agile allows for incremental development.

• Waterfall requires detailed planning upfront, while Agile adapts to changes throughout the project.

• Waterfall is best suited for projects with clear requirements, while Agile is ideal for projects with evolving requirements.

• Waterfall may lead t...read more
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Q3. Question about PM tools & their use cases
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Q1. Where do see yourself in 5 year
Ans. 
In 5 years, I see myself leading a team of project managers and successfully delivering complex projects.
• Continuing to develop my project management skills through training and certifications

• Taking on more challenging projects and responsibilities

• Building strong relationships with stakeholders and team members

• Mentoring junior project managers

• Contributing to the strategic direction of the organization
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Q2. Why do you want to join us
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I am impressed by your company's innovative projects and collaborative work culture.
• I am excited about the opportunity to work on challenging projects with a talented team

• I admire your company's commitment to excellence and continuous improvement

• I believe my skills and experience align well with the goals of your organization
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Have to solve 2 coding questions on coding platform

Q1. Oops concept in java, its significance
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Oops concept in Java refers to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation hides the internal state of an object and restricts access to it.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction focuses on the essential characteristics
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Q2. Thread life cycle
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Q3. How microservices communicates
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Microservices communicate through lightweight protocols like HTTP, messaging queues, and RPC.
• HTTP: RESTful APIs are commonly used for communication between microservices.

• Messaging queues: Services can communicate asynchronously through message brokers like RabbitMQ or Kafka.

• RPC (Remote Procedure Call): Services can directly call each other's functions over the network.
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Q4. Questions about Collection, hashmap
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Q5. Java 8 features, lambda, stream api coding question
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Q1. Project specific questions
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Q2. @autowired, @qualifier, @primary, @transient, @volatile keyword
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Q3. Use of static keyword
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The static keyword in Java is used to create class-level variables and methods that can be accessed without creating an instance of the class.
• Static variables are shared among all instances of a class

• Static methods can be called without creating an instance of the class

• Static blocks are used to initialize static variables
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Q4. Dynamic method dispatch
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Q5. DB connections flow in spring boot
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DB connections flow in Spring Boot involves configuring data source, creating connection pool, and managing transactions.
• Configure data source in application.properties or application.yml

• Use @EnableJpaRepositories to enable JPA repositories

• Create connection pool using HikariCP or Tomcat JDBC

• Manage transactions using @Transactional annotation
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Q6. Rest vs Soap web services
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REST is lightweight, uses standard HTTP methods, and is more flexible. SOAP is more rigid, uses XML, and has built-in security features.
• REST uses standard HTTP methods like GET, POST, PUT, DELETE for communication.

• SOAP uses XML for communication and has built-in security features like WS-Security.

• REST is more lightweight and flexible, making it easier to work with in modern web development.

• SOAP is more rigid and has a ...read more
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