CV0-004 Deployment Practice Question
A company is migrating to the cloud and needs to transfer 200 TB of data from an on-premises data center to GCP. The network bandwidth is limited, so they want to use a physical appliance for offline transfer. Which GCP service 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
✓
Transfer Appliance
Storage Transfer Service is for online transfers; Transfer Appliance is Google's offline physical device; DataSync is AWS; Azure Data Box is Microsoft's offline device.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Azure Data Box
Why it's wrong here
Azure Data Box is Microsoft's physical transfer appliance for importing data into Azure, not GCP. It is tempting because it is a genuine offline shipping device, and would be correct when migrating 200 TB into Azure with constrained bandwidth. The stem specifies GCP, so the equivalent Google appliance is required.
- ✓
Transfer Appliance
Why this is correct
Transfer Appliance is Google's physical, rackable device shipped to the customer, loaded with data, then returned for ingestion into GCP. It bypasses the limited-bandwidth constraint by moving 200 TB offline rather than over the network.
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AWS DataSync
Why it's wrong here
AWS DataSync is an online, agent-based service that transfers data over the network into AWS storage, not an offline physical appliance, and it targets AWS rather than GCP. It is tempting because it moves large datasets, and would fit an AWS migration with adequate bandwidth. Neither the offline nor the GCP requirement is met.
- ✗
Storage Transfer Service
Why it's wrong here
Storage Transfer Service performs online transfers over the network between cloud or HTTP sources and GCP buckets; it ships no physical appliance. It is tempting because it is a genuine GCP data-movement service, and would suit online migration when bandwidth suffices. The stem's limited bandwidth and offline appliance requirement rule it out.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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