CV0-004 Deployment Practice Question
A company is planning to migrate a 200 TB on-premises file server to AWS S3. The network link is 1 Gbps and cannot be saturated due to other traffic. The migration must be completed within two weeks. Which TWO services or features should the cloud engineer consider to accelerate the transfer? (Choose two.)
⚠ Common exam trap
Candidates often assume AWS DataSync alone can handle any large transfer over a network link, but they overlook the bandwidth calculation—200 TB at 1 Gbps takes over 18 days, so a physical transport like Snowball is necessary to meet the two-week deadline.
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
✓
AWS DataSync
AWS DataSync is correct because it is designed to efficiently migrate large datasets to AWS by using parallel multi-threaded transfers and incremental syncs, which can optimize the use of the available 1 Gbps link without saturating it. It can handle the 200 TB file server migration by automating the transfer and reducing the time required compared to manual copying, though the 1 Gbps link alone may still be insufficient for the two-week window, making it a partial solution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Direct Connect
Why it's wrong here
Direct Connect establishes a dedicated network connection but does not accelerate transfer by itself; it's a connectivity option.
- ✗
AWS DMS
Why it's wrong here
DMS is for database migration, not file storage.
- ✓
AWS DataSync
Why this is correct
DataSync can accelerate transfers over the network and is designed for large datasets.
- ✓
AWS Snowball
Why this is correct
Snowball is an offline device capable of transferring large data quickly.
- ✗
AWS Storage Gateway
Why it's wrong here
Storage Gateway provides hybrid cloud storage but is not primarily for bulk migration.
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
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.