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 needs to transfer 200 TB of data from on-premises to Cloud Storage within one week. The on-premises network upload speed is 100 Mbps. Which method should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Order a Transfer Appliance
200 TB at 100 Mbps = 200 * 1024 * 8 / (100/8) seconds ≈ 1,620,000 seconds ≈ 19 days, which exceeds one week. So network transfer is too slow. Transfer Appliance is a physical device for fast offline transfer. Storage Transfer Service is for cloud-to-cloud. gsutil rsync is an online tool. Velostrata is for VM migration.
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.
✓
Order a Transfer Appliance
Why this is correct
Transfer Appliance can handle up to hundreds of TB via physical shipping, meeting the one-week timeline.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Storage Transfer Service
Why it's wrong here
Storage Transfer Service is for data already in the cloud or from HTTP/HTTPS sources, not for on-premises bulk.
✗
Use gsutil rsync to transfer the data
Why it's wrong here
gsutil rsync over 100 Mbps would take ~19 days, exceeding the one-week deadline.
✗
Use Velostrata (Migrate for Compute Engine)
Why it's wrong here
Velostrata is for VM migration, not bulk data transfer.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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: Order a Transfer Appliance — 200 TB at 100 Mbps = 200 * 1024 * 8 / (100/8) seconds ≈ 1,620,000 seconds ≈ 19 days, which exceeds one week. So network transfer is too slow. Transfer Appliance is a physical device for fast offline transfer. Storage Transfer Service is for cloud-to-cloud. gsutil rsync is an online tool. Velostrata is for VM migration.
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.
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Question Discussion
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