Microland Backend Developer Interview Questions and Answers

Q1. Basics of NodeJs
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Q2. Different function in js like callback, closures, promises, Code for different outputs in backend
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Q1. Basic Problem solving skills and magerial based tech question
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Q2. Deployment without turning down the server
Ans. 
Use blue-green deployment or canary deployment to deploy updates without downtime.
• Utilize blue-green deployment strategy to switch traffic between two identical environments.

• Implement canary deployment to gradually roll out updates to a small subset of users before full deployment.

• Use feature flags to enable/disable new features without impacting the entire system.

• Leverage containerization technologies like Docker for ...read more
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Q1. Core Java basics (refer FAQs)
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Q1. More drilling on Core Java & Spring Boot (refer FAQs)
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Q1. Final Round to finalize the offer
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Q1. Questions Related to Basic JavaScript and Node.js, MongoDB, and Mongoose.js.
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Q2. Basic coding problem to test your JS skills.
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Q3. Mongoose aggregations, SQL Joins
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Q4. Problems on API endpoint
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Q1. It is the same as that of the first round but with some intermediate-level questions.
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Q1. String and String Builder, Solid Principles, Java Concurrency, Collection Framework, OOPs concepts. Spring Framework Basics including IOC container, Dependency Injection, Spring Annotations, Circular Depen...read more
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String related questions, Java 8 related questions.

Q1. Describe a project of when you had to work with functions
Ans. 
Developed a project using Python functions to automate data processing tasks
• Created functions to extract, transform, and load data from multiple sources

• Used functions to perform calculations and generate reports based on the processed data

• Implemented error handling within functions to ensure data integrity

• Collaborated with team members to optimize and refactor functions for better performance
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Q2. Describe a project where you had to use unknown project tools
Ans. 
Developed a web application using a new framework
• Had to learn the new framework quickly to meet project deadlines

• Utilized online tutorials and documentation to understand the new tools

• Collaborated with team members to troubleshoot issues and share knowledge
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Array item finding , express app

Q1. Even loop in node
Ans. 
Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient.
• Node.js event loop is a single-threaded loop that listens for events and executes callbacks

• It uses non-blocking I/O operations to handle multiple requests simultaneously

• Event loop has phases like timers, I/O callbacks, idle, prepare, poll, check, and close callbacks

• setImmediate() and process.nextTick() are used to schedule call
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Q1. Basics of NodeJs
Add your answer
Q2. Different function in js like callback, closures, promises, Code for different outputs in backend
Add your answer

Q1. Basic Problem solving skills and magerial based tech question
Add your answer
Q2. Deployment without turning down the server
Ans. 
Use blue-green deployment or canary deployment to deploy updates without downtime.
• Utilize blue-green deployment strategy to switch traffic between two identical environments.

• Implement canary deployment to gradually roll out updates to a small subset of users before full deployment.

• Use feature flags to enable/disable new features without impacting the entire system.

• Leverage containerization technologies like Docker for ...read more
Answered by AI
Add your answer

Q1. Core Java basics (refer FAQs)
Add your answer

Q1. More drilling on Core Java & Spring Boot (refer FAQs)
Add your answer

Q1. Final Round to finalize the offer
Add your answer