Microservices have gained significant traction since their introduction in 2011, with many organizations adopting them for modern application development, as evidenced by a survey showing 36% of enterprises using microservices and another 26% researching implementation. The text provides a comprehensive guide on common microservices interview questions aimed at both freshers and experienced professionals, covering topics like Spring Cloud, Spring Boot, service discovery with Eureka, and the role of OAuth in securing client applications. It also discusses the importance of containers for managing microservices, the necessity of semantic monitoring for business-focused application oversight, and challenges like testing complexities and the need for skilled professionals. Furthermore, it highlights the significance of designing microservices with low coupling, high cohesion, and domain-driven design principles, while addressing common pitfalls during the transition to microservices architecture. The guide concludes by encouraging a deeper understanding of microservices beyond the interview questions, suggesting further study or courses for those considering a switch to this technology.