- A
Use the BigQuery Data Transfer Service to copy data to a separate dataset
Why wrong: Data Transfer Service is for batch scheduled transfers, not real-time.
- B
Create a materialized view that pre-aggregates the data
Why wrong: Materialized views have limitations with streaming inserts (they are eventually consistent).
- C
Schedule a script to export the table to Cloud Storage and load into Cloud SQL
Why wrong: This adds latency and complexity, not suitable for real-time.
- D
Use BigQuery BI Engine to accelerate the Looker Studio queries
BI Engine provides in-memory analysis for sub-second query response.
- E
Partition the BigQuery table by the date column
Partitioning reduces scanned bytes for queries filtered by time.
Question 249 of 1,000
PDE Preparing and Using Data for Analysis Practice Question
This PDE practice question tests your understanding of preparing and using data for analysis. 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 data engineer needs to build a real-time dashboard in Looker Studio that displays live sales data from BigQuery. The dashboard must refresh every minute. The underlying BigQuery table is updated continuously via streaming inserts. Which two approaches can reduce query cost and latency? (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
✓
Use BigQuery BI Engine to accelerate the Looker Studio queries
BI Engine can accelerate queries in Looker Studio by caching data in memory. Partitioning the table on the date column reduces the amount of data scanned.
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 the BigQuery Data Transfer Service to copy data to a separate dataset
Why it's wrong here
Data Transfer Service is for batch scheduled transfers, not real-time.
- ✗
Create a materialized view that pre-aggregates the data
Why it's wrong here
Materialized views have limitations with streaming inserts (they are eventually consistent).
- ✗
Schedule a script to export the table to Cloud Storage and load into Cloud SQL
Why it's wrong here
This adds latency and complexity, not suitable for real-time.
- ✓
Use BigQuery BI Engine to accelerate the Looker Studio queries
Why this is correct
BI Engine provides in-memory analysis for sub-second query response.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Partition the BigQuery table by the date column
Why this is correct
Partitioning reduces scanned bytes for queries filtered by time.
Related concept
Read the scenario before looking for a memorised answer.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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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Preparing and Using Data for Analysis — study guide chapter
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FAQ
Questions learners often ask
What does this PDE question test?
Preparing and Using Data for Analysis — This question tests Preparing and Using Data for Analysis — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use BigQuery BI Engine to accelerate the Looker Studio queries — BI Engine can accelerate queries in Looker Studio by caching data in memory. Partitioning the table on the date column reduces the amount of data scanned.
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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