Professional Data Engineer

Build and operate the data processing systems behind analytics and ML on Google Cloud, including BigQuery, Dataflow, and Pub/Sub, and track your readiness for the Professional Data Engineer exam.

Advanced

Prepare and test your skills

Advanced

Prepare and test your skills

Concept

Parquet

Topic in 2 exam domains

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Parquet · Concept
PARQUET · Concept · Supported export format

Also called: Apache Parquet, Parquet binary format

An open source, column-oriented data format commonly used in distributed data processing ecosystems.

Where this appears on the exam

2 subdomains in 2 of 5 domains

Domain 2
Ingesting and processing the data
~25% of exam
1. 2.1Planning the data pipelines
  - Defining data sources and sinks
Domain 4
Preparing and using data for analysis
~15% of exam
1. 4.2Preparing data for AI and ML
  - Preparing data for feature engineering, training and serving machine learning models (e.g., BigQueryML)

How learners score on this topic

Last updated November 2, 2026

Professional Data Engineer

Build and operate the data processing systems behind analytics and ML on Google Cloud, including BigQuery, Dataflow, and Pub/Sub, and track your readiness for the Professional Data Engineer exam.

Advanced

Prepare and test your skills

Advanced

Prepare and test your skills

Concept

Parquet

Topic in 2 exam domains

X LinkedIn Facebook Reddit

Parquet · Concept
PARQUET · Concept · Supported export format

Also called: Apache Parquet, Parquet binary format

An open source, column-oriented data format commonly used in distributed data processing ecosystems.

Where this appears on the exam

2 subdomains in 2 of 5 domains

Domain 2
Ingesting and processing the data
~25% of exam
1. 2.1Planning the data pipelines
  - Defining data sources and sinks
Domain 4
Preparing and using data for analysis
~15% of exam
1. 4.2Preparing data for AI and ML
  - Preparing data for feature engineering, training and serving machine learning models (e.g., BigQueryML)

How learners score on this topic

Last updated November 2, 2026

Where this appears on the exam

Related topics

How learners score on this topic

Where this appears on the exam

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How learners score on this topic