KCNA Cloud Native Architecture Practice Question
In a microservices architecture, which pattern is used to prevent cascading failures by limiting the number of concurrent requests to a service?
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
✓
Bulkhead
The bulkhead pattern isolates resources to prevent failure propagation. Circuit breaker stops calls after failures, retry reattempts, and timeout limits wait time.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Bulkhead
Why this is correct
Bulkhead limits concurrent requests to protect resources.
- ✗
Timeout
Why it's wrong here
Timeout pattern sets a deadline for a call.
- ✗
Retry
Why it's wrong here
Retry pattern automatically retries failed calls.
- ✗
Circuit breaker
Why it's wrong here
Circuit breaker prevents repeated calls after failures.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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