Acsion Engineering Senior Engineer Interview Questions and Answers

Q1. Coding on java 8 streams API
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Q1. Tell me something about your self?
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I am a dedicated and experienced Senior Engineer with a strong background in project management and problem-solving.
• Over 10 years of experience in engineering field

• Expertise in project management and team leadership

• Strong problem-solving skills and attention to detail

• Proficient in various engineering software and tools

• Excellent communication and interpersonal skills
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Q2. Why deloitte? and Us
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Deloitte is a global leader in consulting and technology services, offering exciting opportunities for growth and innovation.
• Deloitte is a prestigious global consulting firm known for its innovative solutions and industry expertise

• Deloitte offers a wide range of opportunities for career growth and development

• Deloitte values diversity and inclusion, creating a supportive and collaborative work environment

• Deloitte's focu...read more
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1st round was consist of mcq questions the difficulty level was moderate to hard.

Q1. Reverse a String using Array
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Reverse a string using array of characters
• Create an array of characters from the input string

• Use two pointers to swap characters at opposite ends of the array until they meet

• Join the characters in the array to form the reversed string
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Q2. Microservices vs Monilith
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Microservices allow for modular, independent services while monolith is a single, cohesive unit.
• Microservices promote scalability and flexibility

• Monoliths are easier to develop and deploy initially

• Microservices can lead to more complex infrastructure and communication between services

• Monoliths can become difficult to maintain and scale as they grow

• Examples: Netflix uses microservices for their streaming platform, while...read more
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Q3. SQL query to get 3 max salary by group
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SQL query to get 3 max salary by group
• Use the RANK() function to rank the salaries within each group

• Filter the results to only include rows where the rank is less than or equal to 3

• Order the results by group and salary in descending order
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Q4. CI CD process followed in last project
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Implemented CI/CD process using Jenkins for automated builds, tests, and deployments.
• Utilized Jenkins for continuous integration and continuous deployment

• Automated build process triggered by code commits to version control

• Implemented automated testing to ensure code quality

• Deployed code to different environments based on predefined pipelines
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Q5. Major changes in Spring boot 3
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Major changes in Spring Boot 3 include support for Java 17, improved performance, and enhanced security features.
• Support for Java 17

• Improved performance optimizations

• Enhanced security features such as OAuth 2.1 support

• Updated dependencies and libraries
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Technical questions related to SQL , java , hibernate, spring boot ,oops, restful webservices

Q1. How to write Immutable class in java
Ans. 
Immutable class in Java
• Make the class final

• Make all fields private and final

• Do not provide any setter methods

• If mutable objects are used, return a copy instead of the original object
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Q1. What is difference between spring MVC and spring Boot
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Spring MVC is a web framework while Spring Boot is an opinionated configuration of Spring.
• Spring MVC requires manual configuration while Spring Boot provides auto-configuration.

• Spring Boot includes an embedded server while Spring MVC requires a separate server.

• Spring Boot simplifies dependency management while Spring MVC requires manual dependency management.

• Spring Boot is ideal for microservices while Spring MVC is be
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Q1. Salary discussion and project related information
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Q1. What is your responsibility role in the project
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Q2. What is your project discuss your roles and responsibilities in your project
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Q1. What are the technologies used
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We use a variety of technologies including Java, Python, AWS, Docker, and Kubernetes.
• Java for backend development

• Python for scripting and data analysis

• AWS for cloud infrastructure

• Docker for containerization

• Kubernetes for container orchestration
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