AWS Certified AI Practitioner (AIF-C01) · Objective 3.3
Choosing an incident fallback
3.3Standard
An external model becomes slow and errors increase.
Switch safely to an alternative.
Choose two responses.
Hint 1: Focus on the requirement
Define safe alternatives for timeout, service, and budget failures, and measure their quality and recovery behavior rather than retrying forever.
Hint 2: Key terms
Review fallback and timeout controls.
Fallback
A secondary model, rule, queue, or human path used when the primary path fails.
Timeout
A maximum wait after which an operation is treated as incomplete.
Recovery monitoring
Observing whether a failed dependency or workflow returns to an acceptable state.
Retry budget
A bounded allowance for retries that prevents unlimited repeat work.
× Incorrect
Switch on timeout, error, or budget conditions to retrieval-only, rules, or another model, while defining quality differences, notice, retries, and recovery monitoring.
Detailed explanation
A
CorrectDefine quality differences, user notice, retries, and recovery monitoring
The fallback is controlled.
B
IncorrectPresent a fallback as identical quality
Users receive a false expectation.
C
IncorrectRetry the same external API without limit
Failure and cost can amplify.
D
CorrectSwitch on timeout, errors, or budget conditions to rules, retrieval-only, or another model
Dependency impact is limited.
Check official documentation
Compare the following points with the official documentation.
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