Newgen Software Technologies 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.

GD assesses the overall personality – thoughts, feelings and behaviour - of an individual in a group. A topic is presented to the group members for discussion.

To share and exchange knowledge and ideas, clarify doubts, and arrive at a collective decision or understanding

A case study is an appropriate research design when you want to gain concrete, contextual, in-depth knowledge about a specific real-world subject.

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