Developer Completes Spring Microservices Course, Scores 85% in Week 13 of 100DaysOfCode

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A developer shared progress from Week 13 of their #100DaysOfCode challenge, during which they studied Docker, container orchestration, and scaling of Microservices. Key topics covered included the differences between Virtual Machines and containers, Docker images, Dockerfiles, Apache Mesos, and autoscaling strategies. The week's major milestone was completing a Building Spring with Microservices course — spanning Spring Boot, Spring Cloud, API gateways, and monitoring — with an exam score of 85%. Following course completion, the developer began a new module on software testing using JUnit 5, starting with fundamentals such as software quality, verification and validation, and testing levels. The update reflects a structured self-learning approach to backend engineering, combining deployment, scaling, and testing skills progressively.

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