- A
Storage Transfer Service for on-premises
Why wrong: Storage Transfer Service does not support on-premises sources directly; it requires internet-accessible endpoints.
- B
gsutil rsync
Why wrong: gsutil rsync uses network transfer and would be extremely slow at 100 Mbps for 500 TB.
- C
Transfer Appliance
Transfer Appliance is the best choice for large offline data transfer when network bandwidth is limited.
- D
Dataflow pipeline reading from NAS
Why wrong: Dataflow is not designed for direct NAS ingestion; it would require custom connectors and network transfer.
Question 179 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 data engineer needs to transfer 500 TB of archival data from an on-premises NAS to Cloud Storage. The on-premises network has limited bandwidth (100 Mbps). Which transfer method should they recommend?
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
✓
Transfer Appliance
Option C is correct because the Transfer Appliance is a physical device designed for large-scale data transfers (up to petabytes) when network bandwidth is insufficient. With 500 TB of data and only 100 Mbps bandwidth, the theoretical transfer time would be over 500 days, making any online transfer method impractical. The Transfer Appliance bypasses network constraints entirely by shipping the data physically to Google Cloud.
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.
- ✗
Storage Transfer Service for on-premises
Why it's wrong here
Storage Transfer Service does not support on-premises sources directly; it requires internet-accessible endpoints.
- ✗
gsutil rsync
Why it's wrong here
gsutil rsync uses network transfer and would be extremely slow at 100 Mbps for 500 TB.
- ✓
Transfer Appliance
Why this is correct
Transfer Appliance is the best choice for large offline data transfer when network bandwidth is limited.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Dataflow pipeline reading from NAS
Why it's wrong here
Dataflow is not designed for direct NAS ingestion; it would require custom connectors and network transfer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that any cloud-native tool (like Storage Transfer Service or gsutil) can handle large data volumes regardless of bandwidth, ignoring the physical reality of network transfer times for archival-scale data.
Detailed technical explanation
How to think about this question
The Transfer Appliance uses a high-capacity storage server that is physically shipped to the customer site, where data is copied locally via high-speed interfaces (e.g., 10 GbE or USB 3.0). After the data is loaded, the appliance is returned to Google Cloud, where it is ingested into Cloud Storage. This method is ideal for datasets over 10 TB or when network bandwidth is below 100 Mbps, as it avoids the latency and throughput limitations of WAN links.
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.
TExam Day Tips
- 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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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: Transfer Appliance — Option C is correct because the Transfer Appliance is a physical device designed for large-scale data transfers (up to petabytes) when network bandwidth is insufficient. With 500 TB of data and only 100 Mbps bandwidth, the theoretical transfer time would be over 500 days, making any online transfer method impractical. The Transfer Appliance bypasses network constraints entirely by shipping the data physically to Google Cloud.
What should I do if I get this PDE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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