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

Capacitor

Topic in 3 exam domains

Capacitor · Concept · BigQuery storage format
Capacitor · Feature · BigQuery storage format

Also called: Capacitor storage format

A columnar storage format used by BigQuery that supports specialized data encodings for filter evaluation.

Where this appears on the exam

3 objectives in 1 of 5 domains

Domain 3
Storing the data
~20% of exam
1. 3.1Selecting storage systems
  - Analyzing data access patterns
  - Planning for storage costs and performance
2. 3.2Planning for using a data warehouse
  - Designing the data model

How learners score on this topic

Last updated October 15, 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

Capacitor

Topic in 3 exam domains

Capacitor · Concept · BigQuery storage format
Capacitor · Feature · BigQuery storage format

Also called: Capacitor storage format

A columnar storage format used by BigQuery that supports specialized data encodings for filter evaluation.

Where this appears on the exam

3 objectives in 1 of 5 domains

Domain 3
Storing the data
~20% of exam
1. 3.1Selecting storage systems
  - Analyzing data access patterns
  - Planning for storage costs and performance
2. 3.2Planning for using a data warehouse
  - Designing the data model

How learners score on this topic

Last updated October 15, 2026

Where this appears on the exam

Related topics

How learners score on this topic

Where this appears on the exam

Related topics

How learners score on this topic