- A
Use a Dataflow pipeline with a JDBC source to read the entire table periodically
Why wrong: This is batch-oriented and may miss real-time changes.
- B
Use Datastream to backfill historical data and then stream CDC changes to BigQuery
Datastream handles both backfill and CDC seamlessly.
- C
Use a one-time export to CSV and load into BigQuery, then set up a cron job to export incremental changes
Why wrong: This does not provide near real-time CDC and has operational overhead.
- D
Use Cloud SQL as an intermediary and enable binary logging, then stream to Pub/Sub via a custom connector
Why wrong: This adds complexity and does not directly load to BigQuery.
Question 258 of 1,000
PDE Ingesting and Processing the Data Practice Question
This PDE practice question tests your understanding of ingesting and processing the data. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company wants to move data from an on-premises MySQL database to BigQuery for analytics. They need to capture all changes (inserts, updates, deletes) in near real-time and also perform an initial historical load. Which approach meets these requirements with minimal operational overhead?
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
✓
Use Datastream to backfill historical data and then stream CDC changes to BigQuery
Datastream can perform a backfill of historical data and then stream CDC changes from MySQL to BigQuery in near real-time, providing a single service for both tasks.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a Dataflow pipeline with a JDBC source to read the entire table periodically
Why it's wrong here
This is batch-oriented and may miss real-time changes.
- ✓
Use Datastream to backfill historical data and then stream CDC changes to BigQuery
Why this is correct
Datastream handles both backfill and CDC seamlessly.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use a one-time export to CSV and load into BigQuery, then set up a cron job to export incremental changes
Why it's wrong here
This does not provide near real-time CDC and has operational overhead.
- ✗
Use Cloud SQL as an intermediary and enable binary logging, then stream to Pub/Sub via a custom connector
Why it's wrong here
This adds complexity and does not directly load to BigQuery.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which PDE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Ingesting and Processing the Data — study guide chapter
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FAQ
Questions learners often ask
What does this PDE question test?
Ingesting and Processing the Data — This question tests Ingesting and Processing the Data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Datastream to backfill historical data and then stream CDC changes to BigQuery — Datastream can perform a backfill of historical data and then stream CDC changes from MySQL to BigQuery in near real-time, providing a single service for both tasks.
What should I do if I get this PDE question wrong?
Identify which PDE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
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.
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