What is the primary function of a 'Circuit Breaker' pattern in modern microservices architecture (though not explicitly detailed in the blueprint, the concept relates to Availability)?

Answer options:

To encrypt traffic between services.

To load balance traffic.

To prevent a failure in one service from cascading to others by stopping requests to the failing service.

To log all transactions.

How to approach this question

Think of a house fuse. It cuts power to save the house. Circuit breaker cuts connection to save the app.

Full Answer

C.To prevent a failure in one service from cascading to others by stopping requests to the failing service.✓ Correct

The circuit breaker pattern detects failures and encapsulates the logic of preventing a failure from constantly recurring (during maintenance, temporary external system failure or unexpected system difficulties).

Common mistakes

Confusing with Load Balancing.

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