Google PCA Practice Question: Analysing and Optimising Technical and Business Processes
A company is migrating a 200 TB on-premises file server to Cloud Storage. The network bandwidth is limited to 100 Mbps. The migration must complete within 30 days. Which approach should they use?
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 Transfer Appliance
Transfer Appliance is a physical device that can transfer up to 480 TB in a single shipment. At 100 Mbps, transferring 200 TB over the network would take approximately 200 TB * 1024 GB/TB * 8 bits/byte / (100 Mbps) = 1,638,400 Gb / 0.1 Gbps = 16,384,000 seconds ≈ 190 days, far exceeding 30 days. Therefore, using Transfer Appliance is the only feasible 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 Storage Transfer Service from another cloud
Why it's wrong here
Storage Transfer Service is for cloud-to-cloud transfers, not for on-premises initial upload.
- ✗
Use gsutil rsync over the network
Why it's wrong here
At 100 Mbps, it would take about 190 days to transfer 200 TB, exceeding the 30-day window.
- ✗
Use Cloud Data Fusion
Why it's wrong here
Cloud Data Fusion is an ETL service, not designed for bulk file transfer to Cloud Storage.
- ✓
Use Transfer Appliance
Why this is correct
Transfer Appliance can physically ship 200 TB of data, which can be transferred within days. This meets the 30-day requirement.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
Bandwidth
Bandwidth is the maximum amount of data that can travel over a network connection in a given amount of time, usually measured in bits per second.
Key term
Transfer Appliance
A specialized hardware or virtual device used to securely and efficiently migrate large volumes of data between storage systems, often across different environments or geographic locations, without tying up production network bandwidth.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.