GCP-ADP Data Preparation And Ingestion Practice Question
You are migrating a high-throughput on-premises database to BigQuery. You need to ensure zero downtime. What is your best strategy?
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
✓
Datastream
Using Datastream to capture Change Data Capture (CDC) events allows for continuous, near-real-time synchronization.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cloud Pub/Sub
Why it's wrong here
Pub/Sub does not have a native CDC connector for databases.
- ✗
Dataflow batch jobs
Why it's wrong here
Batch jobs are not suitable for zero-downtime migration.
- ✓
Datastream
Why this is correct
Datastream captures changes continuously, allowing for seamless migration.
- ✗
Batch Export/Import
Why it's wrong here
This approach causes downtime during the migration.
About these practice questions
This GCP-ADP question is part of Courseiva's 205-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Google Cloud exam blueprint
This GCP-ADP 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 GCP-ADP exam.