Doyensys Interview Questions and Answers

Given an input dataset, develop an ETL pipeline and create a view to extract information from it.

Q1. Fully based on the submitted assignment and my past experiences in data engineering.
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Q1. Talk about a time you worked in a dysfunctional team
Ans. 
I worked in a dysfunctional team during a project where communication breakdowns and conflicting priorities led to missed deadlines and tension among team members.
• Lack of clear communication and direction from team leaders

• Different team members working on conflicting priorities

• Missed deadlines and tension among team members

• Lack of accountability and responsibility among team members
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1 hr coding with 2 basic questions.

Q1. .Net and angular basic questions, such as oops concepts, dependency Injection etc..
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Q1. Questions about current project such as agile, git, team work
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Q1. SQL basic window function
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Q2. Python pandas question easy
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Q1. Core java , spring interview questions
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Q2. Spring, basic logical interview questions
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Q1. Mostly behaviour questions and check the communication skills
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Q2. Basic questions likes collections and project etc.
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Q1. HVAC Chiller plant porjta engineering. Plant. Trip. Issue resolved. Troubleshooting. Electric. And. Running. System.
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Q2. All problems. Resolved.
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Q3. Electric. Control panel trppingissue.resovled.
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Q4. Chillar plant.Not working. Cooling.Issue. Check resolve
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Q5. Chiller. Plant. Gas. Lake issue. Not working.
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Q6.  Water cooled chiller plant 500 TR running. Time. Big noise issue. All Chiller plant. Big rolling work. Bering. Replacement work. .
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Good. Technical job. Problem. Resolved.

Q1. Explain the Previous project from the resume
Ans. 
Developed a real-time data processing system for analyzing customer behavior on an e-commerce platform.
• Designed and implemented data pipelines using Apache Kafka for streaming data ingestion.

• Utilized Apache Spark for data processing and analysis to generate insights for business decisions.

• Implemented machine learning models for customer segmentation and personalized recommendations.

• Collaborated with cross-functional te...read more
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Q2. SQL window function
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Q1. What is difference between springboot and spring
Ans. 
Spring is a framework for building Java applications, while Spring Boot is a tool that simplifies the setup and configuration of Spring applications.
• Spring is a comprehensive framework that provides support for various functionalities like dependency injection, aspect-oriented programming, and more.

• Spring Boot is an opinionated tool that simplifies the setup and configuration of Spring applications by providing default...read more
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Q2. Explaing springboot annotation
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Spring Boot annotations are used to simplify the development process by providing shortcuts for common configurations and functionalities.
• Annotations like @SpringBootApplication, @RestController, @Autowired, @ComponentScan are commonly used in Spring Boot applications.

• Annotations help in reducing boilerplate code and configuring various aspects of the application.

• For example, @SpringBootApplication is used to mark the ...read more
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Q3. How do you use JPA in your project write it
Ans. 
I use JPA in my project by defining entity classes, annotating them with JPA annotations, creating repositories, and using JPQL queries.
• Define entity classes with @Entity annotation

• Annotate fields with @Column, @Id, @GeneratedValue, etc.

• Create repositories by extending JpaRepository interface

• Use JPQL queries for custom database operations
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Q1. How microservices communicate in your project
Ans. 
Microservices communicate through REST APIs and messaging queues in our project.
• Microservices communicate with each other using REST APIs for synchronous communication.

• Messaging queues like Kafka or RabbitMQ are used for asynchronous communication between microservices.

• Service discovery tools like Eureka or Consul are used to locate and communicate with other microservices.

• Microservices may also use gRPC for communicat
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Q2. Which design pattern used in your last project
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Q1. Asked about all projects
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Q2. Team size and agile methodology
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Q1. Why are you leaving current organization
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Q2. What do you know about Emtec
Ans. 
Emtec is a global IT consultancy that provides technology solutions and services to help organizations drive digital transformation.
• Provides IT consultancy services

• Specializes in technology solutions

• Helps organizations with digital transformation
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Q1. Regarding commercial vehicle systems and operations
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It was an easy round

It was an easy round

Q1. Easy array questions
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Q2. Maximum subarray sum
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