Question 316 of 833
KCNA Cloud Native Architecture Practice Question
A cloud-native application experiences intermittent failures when calling an external API. The team implements a pattern that allows the application to temporarily stop calling the failing API and serve stale data or a fallback response. Which resiliency pattern does this describe?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Circuit Breaker pattern
The circuit breaker pattern prevents repeated calls to a failing service, allowing the system to degrade gracefully.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Circuit Breaker pattern
Why this is correct
The circuit breaker opens to stop calls and allows fallback.
- ✗
Retry pattern
Why it's wrong here
Retry simply repeats the call, which could exacerbate the failure.
- ✗
Bulkhead pattern
Why it's wrong here
Bulkhead isolates resources to prevent cascading failures.
- ✗
Timeout pattern
Why it's wrong here
Timeout sets a limit on wait time, but does not provide fallback.
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Last reviewed: Jun 21, 2026
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