Google PCA Practice Question: Analysing and Optimising Technical and Business Processes
This PCA practice question tests your understanding of analysing and optimising technical and business processes. 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 reduce costs for their BigQuery workloads. Which TWO actions will help achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use clustered and partitioned tables to limit data scanned
Using flat-rate pricing with slot reservations provides predictable costs, and using clustered and partitioned tables reduces the amount of data scanned per query, lowering on-demand costs. Materialized views can reduce costs but are not always needed. Deleting datasets and compression are not relevant.
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 clustered and partitioned tables to limit data scanned
Why this is correct
Clustering and partitioning reduce the data processed, lowering costs.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use flat-rate pricing with BigQuery slot reservations
Why this is correct
Flat-rate pricing provides cost predictability and can be cheaper for high-usage workloads.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable compression on exported data
Why it's wrong here
Compression affects export costs, not query costs.
✗
Delete unnecessary datasets
Why it's wrong here
Deleting datasets reduces storage costs but is not a primary cost optimization for queries.
✗
Use materialized views to pre-compute results
Why it's wrong here
Materialized views can reduce query costs but may incur storage costs and are not always the best cost reduction method.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PCA question in full detail.
Identify which PCA 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.
Analysing and Optimising Technical and Business Processes — This question tests Analysing and Optimising Technical and Business Processes — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use clustered and partitioned tables to limit data scanned — Using flat-rate pricing with slot reservations provides predictable costs, and using clustered and partitioned tables reduces the amount of data scanned per query, lowering on-demand costs. Materialized views can reduce costs but are not always needed. Deleting datasets and compression are not relevant.
What should I do if I get this PCA question wrong?
Identify which PCA 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
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This PCA 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 PCA exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.