CV0-004 Deployment Practice Question
A company is migrating on-premises storage to Google Cloud Storage (GCS) using Storage Transfer Service. The source is an on-premises NAS with 100 TB of data. Which THREE considerations are relevant for this migration? (Select THREE.)
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
✓
The possibility to schedule periodic transfers for ongoing sync
Storage Transfer Service supports online transfers from sources like Amazon S3, HTTP/HTTPS, and on-premises via a staging area. Bandwidth, data integrity, and transfer time are key considerations.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The possibility to schedule periodic transfers for ongoing sync
Why this is correct
Storage Transfer Service supports recurring transfers for continuous synchronization.
- ✓
Data integrity verification using checksums
Why this is correct
Checksums ensure data is not corrupted during transfer.
- ✗
Requirement to install an agent on the NAS
Why it's wrong here
Storage Transfer Service does not require an agent; it can access HTTP sources or S3.
- ✓
Network bandwidth between on-premises and GCP
Why this is correct
Bandwidth affects transfer speed and feasibility.
- ✗
The need for a physical appliance like Snowball Edge
Why it's wrong here
Storage Transfer Service is online; physical appliances are for offline transfers.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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