The video tutorial discusses five key challenges in building microservices: defining bounded contexts, managing configurations, enabling dynamic scaling and load balancing, ensuring visibility and monitoring, and implementing fault tolerance. It emphasizes the evolutionary nature of defining microservice boundaries and the importance of domain-driven design. Configuration management is highlighted as a complex task due to multiple environments and instances. Dynamic scaling requires technology to adjust instances based on load. Visibility is crucial for identifying issues across distributed services, and fault tolerance is necessary to prevent cascading failures in interconnected microservices.

What strategies can be employed to ensure visibility in a microservices architecture?

Discuss the concept of fault tolerance in microservices.

What are the key takeaways regarding the challenges of microservices discussed in the video?