Nagarro Freelancer Interview Questions and Answers

Q1. What is the difference between mule 3 and mule 4
Ans. 
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
Ans. 
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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Q1. What are technologies you have worked so far
Ans. 
I have worked with a variety of technologies including Java, Python, SQL, AWS, and Docker.
• Proficient in Java and Python programming languages

• Experience with SQL databases and data modeling

• Familiarity with AWS cloud services and infrastructure

• Knowledge of containerization using Docker

• Experience with version control using Git
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Q2. Project based question
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Q1. DSA questions with low and medium complexity.
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Q1. Coding on java 8 streams API
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Q1. Reverse a String using Array
Ans. 
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
Ans. 
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 impact analysis
Ans. 
Impact analysis is the process of assessing the potential effects of a change or action on a system or project.
• Identifying the scope of the change and its potential impacts on various components of the system

• Evaluating the risks and benefits associated with the change

• Determining the resources and effort required to implement the change

• Assessing the dependencies and constraints that may affect the change

• Example: Conduct...read more
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Q2. What is Bug life cycle
Ans. 
Bug life cycle is the process of a bug from identification to resolution in software development.
• Bug is identified by testers or users

• Bug is reported in a bug tracking system

• Bug is assigned to a developer

• Developer fixes the bug

• Bug is retested by testers

• If bug is fixed, it is closed. If not, it is reopened

• Bug may go through multiple cycles before resolution
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Q1. How do you handle team
Ans. 
I handle teams by fostering open communication, setting clear goals, providing support, and promoting collaboration.
• Foster open communication within the team to ensure everyone is on the same page

• Set clear goals and expectations to guide the team towards success

• Provide support and resources to help team members overcome challenges

• Promote collaboration and teamwork to leverage the strengths of each team member

• Lead by ex...read more
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Q2. What are the sprint ceremonies
Ans. 
Sprint ceremonies are regular meetings held during a sprint in Agile methodology to plan, review, and improve the team's work.
• Sprint Planning: At the beginning of the sprint, the team plans the work to be done.

• Daily Standup: Daily check-in meetings to discuss progress, challenges, and plans for the day.

• Sprint Review: Meeting at the end of the sprint to demonstrate completed work to stakeholders.

• Sprint Retrospective: Re...read more
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1st round was consist of mcq questions the difficulty level was moderate to hard.

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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