- A
AWS DataSync
Why wrong: DataSync transfers data over the internet or Direct Connect. For 80 TB with a 100 Mbps connection, DataSync would take months — the same problem as a direct internet transfer.
- B
AWS Direct Connect
Why wrong: Direct Connect provides a dedicated network connection to AWS and offers higher bandwidth than standard internet, but a 1 Gbps Direct Connect would still take 7+ days for 80 TB.
- C
Amazon S3 Transfer Acceleration
Why wrong: S3 Transfer Acceleration uses CloudFront edge locations to speed up S3 uploads, but it still requires internet bandwidth. It does not help when the bottleneck is total available bandwidth.
- D
AWS Snowball Edge
Snowball Edge is a physical device with up to 80 TB capacity. Data is copied locally at the customer's site, then the device is shipped to AWS. This bypasses internet bandwidth limitations entirely.
Quick Answer
The answer is AWS Snowball Edge, the correct choice for offline data transfer to AWS Snowball when network bandwidth is a bottleneck. This service is designed for physically migrating large datasets—like 80 TB—when a 100 Mbps connection would take over 80 days, making internet transfer impractical. Snowball Edge bypasses internet dependency entirely by letting you load data onto a ruggedized, portable device and ship it to AWS, where it is ingested into Amazon S3. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of hybrid storage and physical migration services, often appearing as a scenario where network speed or cost rules out online options like AWS DataSync or AWS Direct Connect. A common trap is confusing Snowball Edge with Snowcone or Snowmobile; remember that Snowball Edge is the standard choice for tens of terabytes. Memory tip: think “Snowball Edge = Big Data, No Edge (network).”
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company needs to migrate 80 TB of on-premises data to Amazon S3. Their internet connection is 100 Mbps and transferring this much data over the internet would take months. Which AWS service allows them to migrate this data physically without relying on internet bandwidth?
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 Snowball Edge
AWS Snowball Edge is a physical data transport solution designed for large-scale data migrations when network transfer is impractical. With 80 TB of data and a 100 Mbps connection, internet transfer would take over 80 days, making Snowball Edge the correct choice as it allows you to ship the data on a ruggedized device directly to AWS, bypassing internet bandwidth entirely.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding 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.
- ✗
AWS DataSync
Why it's wrong here
DataSync transfers data over the internet or Direct Connect. For 80 TB with a 100 Mbps connection, DataSync would take months — the same problem as a direct internet transfer.
- ✗
AWS Direct Connect
Why it's wrong here
Direct Connect provides a dedicated network connection to AWS and offers higher bandwidth than standard internet, but a 1 Gbps Direct Connect would still take 7+ days for 80 TB.
- ✗
Amazon S3 Transfer Acceleration
Why it's wrong here
S3 Transfer Acceleration uses CloudFront edge locations to speed up S3 uploads, but it still requires internet bandwidth. It does not help when the bottleneck is total available bandwidth.
- ✓
AWS Snowball Edge
Why this is correct
Snowball Edge is a physical device with up to 80 TB capacity. Data is copied locally at the customer's site, then the device is shipped to AWS. This bypasses internet bandwidth limitations entirely.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse AWS DataSync or S3 Transfer Acceleration as solutions for large data volumes, not realizing that these services still depend on network bandwidth and cannot physically transport data when the connection is too slow.
Detailed technical explanation
How to think about this question
AWS Snowball Edge uses AES-256 encryption for data at rest and TLS for data in transit, with the device shipped via a carrier like UPS. The 80 TB transfer would typically require a single Snowball Edge Storage Optimized device (80 TB usable capacity) and involves a multi-step process: order the device, copy data locally using the Snowball client or Amazon S3 Adapter, ship it back, and AWS imports the data into S3. A real-world scenario is a media company migrating petabytes of video archives where network transfer is infeasible due to high latency or cost.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Snowball Edge — AWS Snowball Edge is a physical data transport solution designed for large-scale data migrations when network transfer is impractical. With 80 TB of data and a 100 Mbps connection, internet transfer would take over 80 days, making Snowball Edge the correct choice as it allows you to ship the data on a ruggedized device directly to AWS, bypassing internet bandwidth entirely.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This CLF-C02 practice question is part of Courseiva's free Amazon Web Services 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 CLF-C02 exam.
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