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

data drift

Topic in 2 exam domains

X LinkedIn Facebook Reddit

Also called: drifts, feature drift

A condition occurring when feature data distribution in production changes significantly over time.

Where this appears on the exam

2 subdomains in 2 of 5 domains

Domain 1
Designing data processing systems
~22% of exam
1. 1.2Designing for reliability and fidelity
  - Data validation
Domain 4
Preparing and using data for analysis
~15% of exam
1. 4.1Preparing data for visualization
  - Precalculating fields

How learners score on this topic

Last updated November 1, 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

data drift

Topic in 2 exam domains

X LinkedIn Facebook Reddit

Also called: drifts, feature drift

A condition occurring when feature data distribution in production changes significantly over time.

Where this appears on the exam

2 subdomains in 2 of 5 domains

Domain 1
Designing data processing systems
~22% of exam
1. 1.2Designing for reliability and fidelity
  - Data validation
Domain 4
Preparing and using data for analysis
~15% of exam
1. 4.1Preparing data for visualization
  - Precalculating fields

How learners score on this topic

Last updated November 1, 2026

Where this appears on the exam

Related topics

Works with

How learners score on this topic

Where this appears on the exam

Related topics

Works with

How learners score on this topic