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

Session windows

Topic in 1 exam domain

A windowing mechanism that groups elements per data key within a specified gap duration of inactivity.

Where this appears on the exam

1 objective in 1 of 5 domains

Domain 2
Ingesting and processing the data
~25% of exam
1. 2.2Building the pipelines
  - Streaming (e.g., windowing, late arriving data)

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

Session windows

Topic in 1 exam domain

A windowing mechanism that groups elements per data key within a specified gap duration of inactivity.

Where this appears on the exam

1 objective in 1 of 5 domains

Domain 2
Ingesting and processing the data
~25% of exam
1. 2.2Building the pipelines
  - Streaming (e.g., windowing, late arriving data)

How learners score on this topic

Last updated October 15, 2026