PDE Ingesting and Processing the Data Practice Question
A company is designing a real-time analytics pipeline using Pub/Sub and Dataflow. They need to ensure exactly-once processing and handle late-arriving data. Which two configurations should they implement? (Choose TWO.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable exactly-once delivery on Pub/Sub subscription
To achieve exactly-once semantics, enable exactly-once delivery on the Pub/Sub subscription (option B). To handle late-arriving data, use a fixed window with allowed lateness and a trigger (option D). This configuration ensures that late data is still processed within the allowed lateness period, while the trigger allows early results to be emitted before the window closes.
Go deeper
Related to this question
About these practice questions
One of 890 original PDE practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PDE practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PDE exam.