CV0-004 Offline data transfer Practice Question
A company needs to migrate 50 TB of data from an on-premises file server to a cloud storage service. The network bandwidth is limited and the migration must be completed within one week. Which cloud service is specifically designed for offline data transfer of large datasets?
⚠ Common exam trap
Many candidates confuse online data transfer services with offline transfer solutions, overlooking that the physical device service is the only option designed for moving large data when bandwidth is insufficient.
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
✓
Offline data transfer via physical device
Offline data transfer via physical device is specifically designed for offline data transfer of large datasets, such as 50 TB, when network bandwidth is limited. It provides physical storage devices that are shipped to the customer, loaded with data, and returned to the cloud provider for ingestion into the cloud storage service, bypassing network constraints entirely. This makes it the ideal choice for completing a 50 TB migration within one week over a limited bandwidth connection.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Online data transfer service
Why it's wrong here
An online data transfer service moves data over the internet, so a limited-bandwidth link makes 50 TB within one week infeasible. It is tempting because it is a managed migration service, but it suits datasets that fit the available bandwidth; offline transfer appliances that ship physical disks are required here.
- ✓
Offline data transfer via physical device
Why this is correct
Offline data transfer via a physical device ships data on encrypted disks to the cloud provider, bypassing limited network bandwidth. This satisfies the 50 TB volume and one-week deadline that online upload over the constrained link cannot meet.
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Batch processing service
Why it's wrong here
A batch processing service schedules and runs compute jobs over data, not physical shipment of datasets into cloud storage. It is tempting because it handles large datasets, but it processes data already in the cloud; the offline requirement demands a transfer appliance shipped to the provider.
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Data transfer acceleration
Why it's wrong here
Data transfer acceleration speeds up transfers over the existing network using parallel streams and edge endpoints, but it still requires adequate bandwidth and cannot move 50 TB within a week on a constrained link. It is tempting because it addresses slow transfers, yet it is for online acceleration, not offline shipping of physical media.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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