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Professional Data Engineer PROFESSIONAL-DATA-ENGINEER

100 real Google Cloud PROFESSIONAL-DATA-ENGINEER questions with answers checked by certified engineers. Start free, upgrade when you are ready.

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Questions
100
Exam code
PROFESSIONAL-DATA-ENGINEER
Last updated
Oct 9, 2026
Language
English
Certification
Professional Data Engineer
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PROFESSIONAL-DATA-ENGINEER sample questions

2 questions from the PROFESSIONAL-DATA-ENGINEER practice set, with the answer and explanation.

  1. Question 1
    A retailer needs a pipeline that ingests clickstream events and stores them for both analysts and an ML team. The events arrive continuously, and storage cost should stay low for raw data. Which design fits best?
    • A.
      Pub/Sub into Dataflow, raw files in Cloud Storage, curated tables in BigQuery
    • B.
      Cloud SQL for raw events with nightly exports to spreadsheets
    • C.
      A single Compute Engine VM running cron jobs that copy CSV files
    • D.
      Firestore for all events, queried directly by the ML team
    Show answer

    Correct answer:

    • A.
      Pub/Sub into Dataflow, raw files in Cloud Storage, curated tables in BigQuery

    Explanation

    Pub/Sub absorbs the continuous stream, Dataflow transforms it, Cloud Storage keeps cheap raw copies, and BigQuery serves analytics. Cloud SQL is the tempting distractor because it is a managed database, but it does not suit high-volume event storage and analytics. The VM and spreadsheet options add operational or scale problems.
  2. Question 2
    A streaming pipeline that uses Pub/Sub generally needs idempotent handling because of at-least-once delivery.
    • A.
      True
    • B.
      False
    Show answer

    Correct answer:

    • A.
      True

    Explanation

    Standard Pub/Sub subscriptions can redeliver messages, so consumers should tolerate duplicates. People sometimes assume the messaging layer deduplicates everything, which is the tempting misconception. The answer is True.
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PROFESSIONAL-DATA-ENGINEER FAQ

What is the Google Cloud PROFESSIONAL-DATA-ENGINEER exam?

PROFESSIONAL-DATA-ENGINEER is the Professional Data Engineer exam from Google Cloud.

How many questions are in the PROFESSIONAL-DATA-ENGINEER practice set?

The full PROFESSIONAL-DATA-ENGINEER practice set has 100 questions with answers.

Can I try PROFESSIONAL-DATA-ENGINEER practice questions for free?

Yes. This page has 2 free PROFESSIONAL-DATA-ENGINEER PDF files shared by other candidates, and a free online test engine where you can answer PROFESSIONAL-DATA-ENGINEER questions in your browser. No account is needed.

What formats are the PROFESSIONAL-DATA-ENGINEER practice questions available in?

PROFESSIONAL-DATA-ENGINEER practice questions are available in these formats: PDF and Online Practice Exam. You can also get them together in a bundle.

How much does PROFESSIONAL-DATA-ENGINEER practice material cost?

PROFESSIONAL-DATA-ENGINEER practice material starts from $59 USD.

Are these the actual PROFESSIONAL-DATA-ENGINEER exam questions?

No. They are exam-style practice questions written from the official PROFESSIONAL-DATA-ENGINEER exam objectives, not actual exam content.

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