Nagarro Service Engineer Interview Questions and Answers for Experienced

Q1. ServiceNow basic QU
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Q1. CAD QUestion about serviecnow
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Q1. Basic question and sal discussion and project discussion
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Q1. DSA questions with low and medium complexity.
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Q1. Python related libraries and SQL
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Q1. Coding on java 8 streams API
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Python basic leet code

Q1. Sql test rank,dense rank, rownum
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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
Ans. 
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
Ans. 
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
Ans. 
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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Q1. What is the difference between mule 3 and mule 4
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Mule 4 introduces significant improvements over Mule 3, enhancing performance, usability, and features.
• Mule 4 uses a new runtime engine, improving performance and scalability.

• Mule 4 supports DataWeave 2.0, offering enhanced data transformation capabilities.

• Mule 4 simplifies error handling with a new error handling framework.

• Mule 4 introduces a new APIkit for easier API development and management.

• Mule 4 has a more intui...read more
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Q2. What are the differences between cloudhub 1.0 and cloudhub 2.0
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CloudHub 1.0 and 2.0 differ in architecture, scalability, and features, enhancing deployment and management capabilities.
• CloudHub 2.0 offers improved scalability with support for multi-cloud deployments.

• Enhanced monitoring and management tools in CloudHub 2.0 allow for better performance insights.

• CloudHub 2.0 introduces a new runtime engine, providing faster application startup times.

• Support for Kubernetes in CloudHub ...read more
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1st round was consist of mcq questions the difficulty level was moderate to hard.