The correct answer is to use AWS Snowball Edge and AWS DataSync, as these two methods are specifically designed for transferring large data to S3 when network bandwidth is limited. Snowball Edge is a physical storage device that bypasses network constraints entirely by shipping the data on a ruggedized appliance, making it ideal for moving 50 TB from an on-premises Hadoop cluster without relying on the 500 Mbps link. DataSync, on the other hand, optimizes network transfers through parallel multi-threading, compression, and incremental sync, allowing it to efficiently move data over that same limited bandwidth by reducing the total data volume and transfer time. On the AWS Certified Data Engineer Associate DEA-C01 exam, this question tests your ability to distinguish between bulk offline transfer tools and network-based acceleration services, with a common trap being to confuse S3 Transfer Acceleration or Direct Connect as standalone solutions—they only improve existing network paths, not solve bandwidth scarcity. Remember the mnemonic “Ship or Sync” for Snowball and DataSync, and avoid any streaming or dedicated-line options for bulk offline loads.
DEA-C01 Data Operations and Support Practice Question
This DEA-C01 practice question tests your understanding of data operations and support. 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 data engineer needs to transfer 50 TB of data from an on-premises Hadoop cluster to Amazon S3. The network bandwidth is limited to 500 Mbps. Which TWO methods are appropriate for this transfer? (Choose TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Order an AWS Snowball Edge device to physically ship the data.
Options A and C are correct. AWS Snowball Edge is a physical device for large data transfers over slow networks. AWS DataSync can transfer data over the network with optimization. Option B is wrong because S3 Transfer Acceleration speeds up transfers but still requires network bandwidth. Option D is wrong because AWS Direct Connect is a dedicated network connection, not a transfer method. Option E is wrong because Amazon Kinesis is for streaming data, not bulk transfer.
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.
✗
Set up an AWS Direct Connect connection for higher bandwidth.
Why it's wrong here
Direct Connect provides dedicated bandwidth but does not itself transfer data.
✓
Order an AWS Snowball Edge device to physically ship the data.
Why this is correct
Snowball is ideal for large datasets with low bandwidth.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use S3 Transfer Acceleration to upload over the internet.
Why it's wrong here
Transfer Acceleration improves speed but cannot overcome the 500 Mbps limit.
✗
Use Amazon Kinesis Data Firehose to stream the data.
Why it's wrong here
Kinesis is for real-time streaming, not bulk historical transfer.
✓
Use AWS DataSync to transfer data over the network.
Why this is correct
DataSync can optimize network transfer and handle large volumes.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 DEA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Data Operations and Support — This question tests Data Operations and Support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Order an AWS Snowball Edge device to physically ship the data. — Options A and C are correct. AWS Snowball Edge is a physical device for large data transfers over slow networks. AWS DataSync can transfer data over the network with optimization. Option B is wrong because S3 Transfer Acceleration speeds up transfers but still requires network bandwidth. Option D is wrong because AWS Direct Connect is a dedicated network connection, not a transfer method. Option E is wrong because Amazon Kinesis is for streaming data, not bulk transfer.
What should I do if I get this DEA-C01 question wrong?
Identify which DEA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A data engineer needs to transfer 50 TB of data from an on-premises HDFS cluster to Amazon S3. The on-premises network has a 1 Gbps link to AWS. Which AWS service should be used to perform the transfer efficiently?
easy
✓ A.AWS DataSync
B.Amazon S3 Transfer Acceleration
C.AWS Snowball Edge
D.AWS Direct Connect
Why A: Option B is correct because AWS DataSync is designed for large-scale data transfers over the network. Option A is wrong because S3 Transfer Acceleration speeds up uploads but is not a transfer service. Option C is wrong because AWS Snowball is for offline data transfer, but the network link is sufficient. Option D is wrong because AWS Direct Connect is a network connection, not a data transfer service.
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This DEA-C01 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 DEA-C01 exam.
Question Discussion
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