This DVA-C02 practice question tests your understanding of security. 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 developer needs to securely transfer files from an on-premises server to an S3 bucket. Which TWO methods meet the security requirements?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS Transfer Family with SFTP protocol.
Option B is correct because AWS Transfer Family provides a fully managed service that supports SFTP (SSHFile Transfer Protocol) for securely transferring files to Amazon S3. It uses SSH for authentication and encryption, ensuring data in transit is protected without requiring any changes to the on-premises server's existing SFTP infrastructure.
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.
✗
Use the S3 sync command without any additional configuration.
Why it's wrong here
Sync does not ensure encryption unless HTTPS is used.
✓
Use AWS Transfer Family with SFTP protocol.
Why this is correct
SFTP provides encrypted file transfers.
Related concept
Read the scenario before looking for a memorised answer.
✗
Generate a presigned URL and use it with wget.
Why it's wrong here
Presigned URLs are for temporary access, not for ongoing transfers.
Read the scenario before looking for a memorised answer.
✗
Use FTP with TLS.
Why it's wrong here
FTPS is acceptable but not an AWS service; AWS Transfer Family supports SFTP.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume the AWS CLI cp command over HTTPS (Option D) is inherently secure, but the exam expects them to recognize that while HTTPS encrypts data in transit, the question asks for 'methods' that meet security requirements, and both B and D are correct—Option D is indeed valid because the AWS CLI uses HTTPS by default, making it a secure method; however, the trap is that some might incorrectly eliminate D thinking it lacks encryption, when in fact it does use TLS.
Detailed technical explanation
How to think about this question
AWS Transfer Family abstracts the underlying S3 API and provides a managed endpoint that supports SFTP, FTPS, and AS2 protocols. Under the hood, it uses an Elastic Network Interface (ENI) in your VPC to route traffic to S3, and it integrates with AWS Identity and Access Management (IAM) for fine-grained access control. A real-world scenario is a financial institution that must comply with PCI DSS by using SFTP for batch file uploads; Transfer Family allows them to maintain their existing SFTP clients while storing data directly in S3.
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.
Security — This question tests Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use AWS Transfer Family with SFTP protocol. — Option B is correct because AWS Transfer Family provides a fully managed service that supports SFTP (SSH File Transfer Protocol) for securely transferring files to Amazon S3. It uses SSH for authentication and encryption, ensuring data in transit is protected without requiring any changes to the on-premises server's existing SFTP infrastructure.
What should I do if I get this DVA-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.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This DVA-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 DVA-C02 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.