Explain what high coupling of components means in the context of microservice architecture and why it is important.

High component coupling in a microservices architecture means that services are heavily dependent on each other — for example, directly calling internal methods, using shared databases, or having tightly coupled data exchange.

Why is this important:

• High coupling reduces the independence of microservices, making their development, testing, and deployment more complex.
• Changes in one service can trigger a chain reaction of errors in others.
• Scalability and flexibility of the system decrease.

An ideal microservices architecture aims for low coupling and high cohesion — services interact through well-defined APIs, minimizing dependencies.

Example: if Service A directly accesses Service B's database, this is high coupling. It is better if Service A calls Service B's API without knowing the details of its implementation.