GCPProfessional

Professional Machine Learning Engineer

PMLE

Design, build, productionise, optimise, operate and maintain ML systems on Google Cloud.

Also on CertifyCloudx. This PMLE question bank is the same set on our sister site certifycloudx.com, so you only need to buy it on one of the two sites.

Duration
120 min
Exam questions
50–60
Passing score
Pass / Fail (undisclosed)
Exam fee
$200
Question formats:Multiple choiceMultiple response
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Mixed paper 1
Domain 1 · 25 questions
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Domain 1 · 25 questions
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Domain 1 · 13 questions

Domain papers 541 questions

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25 questions · 60 min
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25 questions · 60 min
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13 questions · 32 min
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13 questions · 32 min

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55 questions · 120 min
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55 questions · 120 min
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55 questions · 120 min

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Question 1Architecting low-code AI solutions

Sablefin Advisory runs a Gemini-based assistant over a 300-page policy handbook, resending the whole handbook as context on every request, and the monthly bill is dominated by input tokens. Two workloads exist: an interactive chat used by 200 advisers during office hours, and an overnight job producing 60,000 compliance summaries with no deadline before 07:00. Finance wants a large reduction in spend without degrading interactive answer quality. What should you do?

  1. A.

    Put the handbook into Gemini Enterprise Agent Platform context caching for the interactive chat, and move the 60,000 overnight summaries to batch prediction.

  2. B.

    Reduce the maximum output token limit on both workloads so that every response is shorter and fewer output tokens are billed each month.

  3. C.

    Buy Provisioned Throughput for the interactive chat so that input tokens are no longer billed at all.

  4. D.

    Increase the temperature on both workloads so the model spends fewer sampling steps per response.

Show answer

Answer: A

Context caching removes the cost of resending the same handbook on every interactive call, and batch prediction serves the deadline-free overnight job at a lower price than online requests.

  • A. Caching bills the repeated handbook prefix at the lower cached-input rate without changing what the model sees, and batch prediction prices the deadline-free overnight generations below online requests.
  • B. The bill is dominated by input tokens, so capping output length saves little, and shorter answers degrade the interactive quality Finance wants preserved.
  • C. Provisioned Throughput is a capacity reservation aimed at availability; it changes how you are billed but does not make input tokens free.
  • D. Temperature controls sampling randomness, not the number of tokens processed, so it changes output style rather than cost.

What's on the exam

6 domains · 14 task statements, straight from the official exam guide (as of June 1, 2026).

  1. 1.1Developing ML models using BigQuery ML or AutoML on Gemini Enterprise Agent Platform.
    • Building models in BigQuery ML or Agent Platform AutoML (e.g., classification, regression, forecasting, and clustering) based on the business problem.
    • Performing feature engineering or selection using BigQuery ML.
    • Generating predictions using BigQuery ML.
    • Training models using Agent Platform AutoML.
    • Fine-tuning Gemini models using BigQuery.
  2. 1.2Building AI solutions using Google Cloud AI APIs or foundational models.
    • Evaluating and selecting the appropriate model for a given task from Gemini Enterprise Agent Platform Model Garden.
    • Building applications using industry-specific APIs (e.g., Document AI API, Vision API, and Translate API).
    • Building solutions and tuning models for specific use cases (e.g., Gemini, Imagen, Veo, and models as a service in Model Garden).
    • Optimizing Gemini-based applications for cost, latency, and availability.

Outline reproduced from the vendor's public exam guide for study reference.Official guide

PMLE practice — frequently asked questions

Are these real PMLE exam questions?

No. Every question on CertifyAIx is original, written by us against Google's publicly available PMLE exam guide to rehearse the skills it lists. None are actual exam questions, and CertifyAIx is not affiliated with or endorsed by Google.

How many PMLE practice questions are there?

541 practice questions, including 3 full-length timed mock exams and 54 domain papers of up to 25 questions (mixed and by topic). Every question has a detailed explanation of why the right answer wins and why each distractor loses.

Is the content up to date with the current PMLE exam guide?

The questions are written against the PMLE exam guide dated June 1, 2026, and we revise them when Google updates the guide.

What question formats are covered?

The same formats the real PMLE uses: Multiple choice, Multiple response. Each is rendered and graded the way the exam does it.

How long is the PMLE exam and how many questions does it have?

According to Google's published exam details: 50–60 questions, 120 minutes, passing score Pass / Fail (undisclosed). Our mock exams use the same time limit, with a question count in the middle of that range. Always confirm current details with Google before booking.

Can I practise PMLE for free?

Yes. 3 papers are free, with up to 10 questions a day on the free plan and no card needed. Pro unlocks every paper and mock exam with no daily limit.

Does CertifyAIx guarantee that I will pass?

No practice material can guarantee a result. CertifyAIx helps you find and close your weak areas — accuracy by exam-guide domain and topic shows what to study next.