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Google Professional Data Engineer

PDE

Data pipelines, processing, and analysis with Google Cloud services.

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Exam questions

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Time limit

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Passing score

Professional

Level

Exam Instructions

•Each question can have one or multiple correct answers. Multi-answer questions will indicate this clearly.
•In exam mode, you have X minutes to complete all questions. The timer starts automatically.
•In practice mode, there is no time limit and you can view the explanation for each answer.
•In marathon mode, all questions in the bank are used, with no time limit and explanations for every question.
•You can flag questions for review and navigate freely between them.

Exam topics & domains

Designing data processing systems (Dataflow, Pub/Sub)
Ingesting & processing data at scale
Storage engineering (BigQuery, Bigtable, Spanner)
Preparing & using data for analysis & ML

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Exam Audio Pills (PDE)

2-minute high-yield audio summaries reviewing classic exam traps and golden rules for Google Professional Data Engineer.

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BigQuery Performance & Cost Optimization

BigQuery: Partitioning vs. Clustering

Understand the vital architectural difference between partition segment pruning and clustered columnar sorting.

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Exam Golden Rule:

Partition by date or ingestion time to prune segments and drastically reduce query cost. Cluster by high-cardinality query columns (like customer_id or status) to accelerate sorts and filters. Google recommends combining both!