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Microservice Architecture interview questions

Bounded Contexts, Database per Service, Docker Containerization, Eventual Consistency (Sagas), Kubernetes Orchestration, Message Brokers (Kafka)

99 questions with answers and explanations · 99 flashcards

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Questions (page 1 of 2)

  1. In a microservices architecture, why is it important to use a database-per-service pattern?Multiple choiceMedium
  2. In a microservices architecture using Kafka, what is a typical approach to manage distributed transactions?Multiple choiceMedium
  3. Which of the following best describes the concept of immutable Docker images?Multiple choiceMedium
  4. In the context of microservices, what challenge does Eventual Consistency address?Multiple choiceHard
  5. How would you explain a key consideration when implementing distributed tracing in a microservices architecture in an interview?Multiple choiceMedium
  6. How does using Apache Kafka contribute to the resilience of a microservices architecture?Multiple choiceMedium
  7. Which Kubernetes feature is crucial for achieving self-healing in a microservices environment?Multiple choiceHard
  8. What role does Kubernetes play in managing microservices?Multiple choiceEasy
  9. Which of the following best describes a Docker container's lifecycle in a Kubernetes environment?Multiple choiceHard
  10. In an event-driven architecture using Apache Kafka, what ensures that messages are processed in order?Multiple choiceHard
  11. In the context of Kubernetes, what is a 'Pod'?Multiple choiceMedium
  12. In an event-driven architecture using Kafka, what happens if a consumer is offline when a producer sends an event?Multiple choiceMedium
  13. When implementing a Saga with compensating transactions, what is a key consideration to ensure data consistency?Multiple choiceMedium
  14. Which of the following is NOT a benefit of using Docker in a microservices architecture?Multiple choiceMedium
  15. Why does a Dockerfile matter in this design?Multiple choiceEasy
  16. In a Kafka-based system, what is a common strategy for handling a consumer's failure to process a message?Multiple choiceHard
  17. How can Kubernetes enhance the management of a microservices architecture?Multiple choiceHard
  18. How does Kubernetes help in the orchestration of microservices?Multiple choiceMedium
  19. In a Kubernetes environment, what is the purpose of using Docker for packaging Java applications?Multiple choiceMedium
  20. How does Docker ensure that applications are portable across different environments?Multiple choiceMedium
  21. What problem does Kubernetes solve that Docker alone does not address well?Multiple choiceHard
  22. How does Kubernetes achieve auto-scaling of microservices?Multiple choiceMedium
  23. How does Apache Kafka achieve high throughput in data processing?Multiple choiceHard
  24. Why are Docker images considered lightweight compared to virtual machines?Multiple choiceMedium
  25. What challenge is addressed by implementing distributed tracing with correlation IDs in a microservices setup?Multiple choiceHard
  26. When designing a microservices architecture, what is a potential drawback of the 'database-per-service' rule?Multiple choiceHard
  27. What role does Apache Kafka play in a microservices architecture?Multiple choiceMedium
  28. Which statement about Kubernetes in a microservices architecture is true?Multiple choiceMedium
  29. How does implementing bounded contexts in microservices help prevent a 'distributed monolith'?Multiple choiceMedium
  30. In Kubernetes, what is the primary purpose of a 'Service'?Multiple choiceEasy
  31. Why can using the Choreography-based Saga pattern become a problem in practice?Multiple choiceHard
  32. Which statement about Kubernetes orchestration is true?Multiple choiceEasy
  33. In a Kubernetes deployment, what is the purpose of a 'ReplicaSet'?Multiple choiceMedium
  34. Why do teams use a Docker image in a microservices environment in production code?Multiple choiceEasy
  35. Which of the following best describes the role of Docker in microservices architecture?Multiple choiceHard
  36. How does Docker contribute to the immutability of microservices deployments?Multiple choiceHard
  37. In an event-driven microservices architecture, what is the primary role of a message broker like Kafka?Multiple choiceEasy
  38. How would you explain a key advantage of using Docker containers in a microservices architecture in an interview?Multiple choiceEasy
  39. Why is exponential backoff used in network retries within microservices?Multiple choiceMedium
  40. Why is Docker considered immutable in the context of microservices?Multiple choiceEasy
  41. How does Kubernetes achieve self-healing for applications?Multiple choiceHard
  42. Which statement about Docker and Kubernetes orchestration is incorrect?Multiple choiceHard
  43. When deploying microservices using Docker, why is it essential to ensure containers are immutable?Multiple choiceMedium
  44. How does Docker ensure isolated environments for running applications?Multiple choiceEasy
  45. Which statement best describes the Database-per-Service pattern?Multiple choiceHard
  46. In the context of Docker, what does immutability refer to?Multiple choiceMedium
  47. Why do teams use a message broker like Apache Kafka in a microservices architecture in production code?Multiple choiceEasy
  48. Why does a Kubernetes ConfigMap matter in practice?Multiple choiceMedium
  49. When using Docker for microservices, what does immutability imply?Multiple choiceEasy
  50. How would you explain a key difference between a monolithic architecture and a microservices architecture in an interview?Multiple choiceEasy