This PMLE practice question tests your understanding of collaborating to manage data and models. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Refer to the exhibit. The team wants to automatically deploy the best-performing model version to production. They have set up a Cloud Function triggered by Model Registry events. Which alias should they use in the function to get the latest champion?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
'champion'
The 'champion' alias conventionally indicates the best-performing production version.
''
Why wrong: An empty alias would not identify any version.
'experiment'
Why wrong: This alias is for experimental versions, not production.
'latest'
Why wrong: 'latest' is not a standard alias; the Model Registry does not automatically assign it.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
'champion'
The 'champion' alias is specifically reserved in MLflow Model Registry to denote the best-performing model version in production. By configuring the Cloud Function to trigger on the assignment of the 'champion' alias, the team ensures that only the model version promoted as the production champion is automatically deployed, aligning with MLOps best practices for staged model promotion.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
'champion'
Why this is correct
The 'champion' alias conventionally indicates the best-performing production version.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
''
Why it's wrong here
An empty alias would not identify any version.
'experiment'
Why it's wrong here
This alias is for experimental versions, not production.
'latest'
Why it's wrong here
'latest' is not a standard alias; the Model Registry does not automatically assign it.
Common exam traps
Google Cloud often tests the distinction between 'champion' (a production alias) and 'latest' (a version number concept), leading candidates to incorrectly choose 'latest' because they confuse chronological recency with performance-based promotion.
Detailed technical explanation
MLflow Model Registry aliases are mutable tags that can be assigned to specific model versions, with 'champion' and 'challenger' being common conventions for production and staging candidates. The Cloud Function listens for Model Registry events via the MLflow Tracking API or webhooks, and the alias assignment triggers the function only when a version is explicitly promoted to champion, avoiding deployment of unvalidated versions. In a real-world CI/CD pipeline, this pattern prevents accidental deployment of a model that is merely the latest but not yet validated as the best performer.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
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FAQ
Collaborating to manage data and models — This question tests Collaborating to manage data and models — Read the scenario before looking for a memorised answer..
The correct answer is: 'champion' — The 'champion' alias is specifically reserved in MLflow Model Registry to denote the best-performing model version in production. By configuring the Cloud Function to trigger on the assignment of the 'champion' alias, the team ensures that only the model version promoted as the production champion is automatically deployed, aligning with MLOps best practices for staged model promotion.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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