Multiple Choice Flashcards on 02 AWS Certified Machine Learning Engineer - As...

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Flashcard Practice AWS Certified Machine Learning Engineer - Associate Multiple Choice

A mobile client sends all premium users to the challenger variant by setting a target variant header, while other users follow endpoint weights. What is the main risk to the A/B test?

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The training baseline will be overwritten by the target variant header The endpoint will stop collecting invocation metrics for the incumbent variant The challenger receives biased traffic, so metric differences may reflect user mix rather than model performance The model registry will reject both model packages after the first request

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