Software Developer III

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Software Developer III Interview Questions and Answers

Updated 3 Apr 2022

Q1. Load balancing in microservices, Messaging in Microservices

Ans.

Load balancing and messaging are crucial for scalability and reliability in microservices architecture.

  • Load balancing ensures even distribution of traffic among multiple instances of a service.

  • Messaging enables asynchronous communication between microservices.

  • Load balancing can be achieved through software or hardware solutions like NGINX, HAProxy, or AWS ELB.

  • Messaging can be implemented using message brokers like RabbitMQ, Apache Kafka, or AWS SQS.

  • Load balancing and messagin...read more

Q2. Distributed tracing in microservices

Ans.

Distributed tracing is a technique used to monitor and debug microservices architecture.

  • It involves tracking requests as they flow through multiple services

  • Each service adds its own trace information to the request

  • This allows for easy identification of performance bottlenecks and errors

  • Tools like Zipkin and Jaeger can be used for distributed tracing

Q3. Transaction mangement in Microservices

Ans.

Transaction management in microservices is crucial for ensuring data consistency and integrity.

  • Each microservice should have its own database to manage transactions independently.

  • Use distributed transactions or two-phase commit protocol to ensure atomicity across multiple microservices.

  • Implement compensating transactions to handle failures and rollbacks.

  • Consider using event-driven architecture to decouple services and improve scalability.

  • Use a centralized logging and monitori...read more

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