ExpertHard1 markMultiple Choice
CPA · Question 69 · Area I: Information Systems
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)?
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:
A.
To encrypt traffic between services.
B.
To load balance traffic.
C.
To prevent a failure in one service from cascading to others by stopping requests to the failing service.
D.
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
To prevent a failure in one service from cascading to others by stopping requests to the failing service.
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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