This DEA-C01 practice question tests your understanding of data store management. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Network Topology
A data engineer runs the above command and gets the output. What does the 'MFADelete' setting imply?
Network Topology
A
Any modification to an object requires MFA.
Why wrong: Only version deletion and versioning suspension require MFA.
B
To permanently delete a version of an object, the user must provide MFA.
MFADelete adds an extra layer of security for version deletions.
C
MFA is required for all read operations as well.
Why wrong: Read operations do not require MFA.
D
All operations on the bucket require MFA authentication.
Why wrong: MFADelete only applies to version deletion and changing versioning state.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
To permanently delete a version of an object, the user must provide MFA.
The 'MFADelete' setting on an S3 bucket versioning configuration requires multi-factor authentication to permanently delete an object version. This means that when a user issues a DELETE request with a version ID (a permanent delete), they must include a valid MFA token in the request headers. It does not apply to creating new versions, reading objects, or other operations.
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.
✗
Any modification to an object requires MFA.
Why it's wrong here
Only version deletion and versioning suspension require MFA.
✓
To permanently delete a version of an object, the user must provide MFA.
Why this is correct
MFADelete adds an extra layer of security for version deletions.
Related concept
Read the scenario before looking for a memorised answer.
All operations on the bucket require MFA authentication.
Why it's wrong here
MFADelete only applies to version deletion and changing versioning state.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The DEA-C01 exam often tests the distinction between 'MFA Delete' (which only applies to permanent version deletion) and general MFA enforcement on all bucket operations, leading candidates to overgeneralize the scope of the setting.
Detailed technical explanation
How to think about this question
Under the hood, 'MFADelete' is enabled via the PUT Bucket Versioning API with the 'MFA' header containing a serial number and a one-time code from a hardware or virtual MFA device. Once enabled, any DELETE request that includes a version ID (i.e., a permanent delete) must also include the 'x-amz-mfa' header; otherwise, the request fails with a 403 AccessDenied. This setting is immutable once enabled—it cannot be disabled without MFA authentication itself, providing a strong defense against accidental or malicious permanent data loss.
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.
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
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.
Data Store Management — This question tests Data Store Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: To permanently delete a version of an object, the user must provide MFA. — The 'MFADelete' setting on an S3 bucket versioning configuration requires multi-factor authentication to permanently delete an object version. This means that when a user issues a DELETE request with a version ID (a permanent delete), they must include a valid MFA token in the request headers. It does not apply to creating new versions, reading objects, or other operations.
What should I do if I get this DEA-C01 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 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
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.