PDE Ingesting and Processing the Data Practice Question
A data engineer needs to move 500 TB of archival data from an on-premises Hadoop cluster to Cloud Storage. The network bandwidth is limited to 100 Mbps, and the transfer must complete within 30 days. Which method is most cost-effective and reliable?
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 to ship the data offline
With 100 Mbps, transferring 500 TB over the network would take > 500 days, exceeding the 30-day window. Transfer Appliance is designed for petabyte-scale offline transfers, making it 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 Dataproc to copy data in parallel
Why it's wrong here
Parallelism helps but cannot overcome the bandwidth constraint.
- ✗
Use a VPN and gsutil rsync
Why it's wrong here
Still limited by network bandwidth.
- ✗
Use Storage Transfer Service over the internet
Why it's wrong here
Network bandwidth is insufficient to meet the timeline.
- ✓
Use Transfer Appliance to ship the data offline
Why this is correct
Transfer Appliance allows offline shipping of large data volumes, bypassing bandwidth limits.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.