- A
Enable S3 Object Lock on the destination S3 bucket in governance mode.
S3 Object Lock prevents objects from being deleted or overwritten for a specified period, ensuring immutability.
- B
Enable log file validation to guarantee integrity of log files.
Log file validation uses digital signatures to detect if log files were modified after delivery.
- C
Disable log file validation to reduce overhead.
Why wrong: Disabling validation reduces integrity assurance.
- D
Store CloudTrail logs in a CloudWatch Logs log group with a retention policy.
Why wrong: CloudWatch Logs does not provide immutability; logs can be deleted or overwritten.
- E
Enable CloudTrail Insights to detect configuration changes.
Why wrong: Insights detects unusual activity but does not protect log files from modification or deletion.
Quick Answer
The correct combination is enabling S3 Object Lock in governance mode on the destination S3 bucket and enabling CloudTrail log file validation. S3 Object Lock in governance mode prevents any user, including the root user, from overwriting or deleting CloudTrail log objects during the specified retention period, directly enforcing immutability at the storage layer. Meanwhile, log file validation uses SHA-256 hashing to generate digest files, allowing you to cryptographically verify that no log file has been modified, deleted, or tampered with after delivery, ensuring integrity. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this pairing tests your understanding that immutability (preventing changes) and integrity (detecting changes) are complementary but distinct controls—a common trap is choosing only one. Remember the mnemonic “Lock for prevention, Validation for detection” to keep the two actions straight.
DOP-C02 Monitoring and Logging Practice Question
This DOP-C02 practice question tests your understanding of monitoring and logging. 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.
A company is using AWS CloudTrail to log API activity in their AWS account. They want to ensure that any modification to CloudTrail configuration itself is logged and that the logs are immutable. Which combination of actions should they take? (Choose TWO.)
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
Enable S3 Object Lock on the destination S3 bucket in governance mode.
Option A is correct because enabling S3 Object Lock in governance mode on the destination S3 bucket prevents any user, including the root user, from overwriting or deleting CloudTrail log objects during the retention period, ensuring immutability. Option B is correct because enabling log file validation creates a digest file that uses SHA-256 hashing to verify that log files have not been modified, deleted, or tampered with after delivery, providing integrity assurance.
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.
- ✓
Enable S3 Object Lock on the destination S3 bucket in governance mode.
Why this is correct
S3 Object Lock prevents objects from being deleted or overwritten for a specified period, ensuring immutability.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Enable log file validation to guarantee integrity of log files.
Why this is correct
Log file validation uses digital signatures to detect if log files were modified after delivery.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Disable log file validation to reduce overhead.
Why it's wrong here
Disabling validation reduces integrity assurance.
- ✗
Store CloudTrail logs in a CloudWatch Logs log group with a retention policy.
Why it's wrong here
CloudWatch Logs does not provide immutability; logs can be deleted or overwritten.
- ✗
Enable CloudTrail Insights to detect configuration changes.
Why it's wrong here
Insights detects unusual activity but does not protect log files from modification or deletion.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse CloudTrail Insights (which detects configuration changes) with the actual mechanisms for ensuring log immutability and integrity, leading them to select option E instead of the correct combination of S3 Object Lock and log file validation.
Detailed technical explanation
How to think about this question
S3 Object Lock in governance mode uses a retention period that can be extended by users with the s3:PutObjectRetention permission, but even the AWS account root user cannot delete locked objects until the retention period expires. Log file validation works by creating a SHA-256 hash of each log file and storing it in a digest file, which is also signed using the CloudTrail private key; you can verify the digest using the public key published in the AWS documentation, ensuring end-to-end integrity.
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.
- →
Monitoring and Logging — study guide chapter
Learn the concepts, then practise the questions
- →
Monitoring and Logging practice questions
Targeted practice on this topic area only
- →
All DOP-C02 questions
1,740 questions across all exam domains
- →
AWS Certified DevOps Engineer Professional DOP-C02 study guide
Full concept coverage aligned to exam objectives
- →
DOP-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related DOP-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Configuration Management and IaC practice questions
Practise DOP-C02 questions linked to Configuration Management and IaC.
Resilient Cloud Solutions practice questions
Practise DOP-C02 questions linked to Resilient Cloud Solutions.
Monitoring and Logging practice questions
Practise DOP-C02 questions linked to Monitoring and Logging.
Incident and Event Response practice questions
Practise DOP-C02 questions linked to Incident and Event Response.
Security and Compliance practice questions
Practise DOP-C02 questions linked to Security and Compliance.
SDLC Automation practice questions
Practise DOP-C02 questions linked to SDLC Automation.
DOP-C02 fundamentals practice questions
Practise DOP-C02 questions linked to DOP-C02 fundamentals.
DOP-C02 scenario practice questions
Practise DOP-C02 questions linked to DOP-C02 scenario.
DOP-C02 troubleshooting practice questions
Practise DOP-C02 questions linked to DOP-C02 troubleshooting.
Practice this exam
Start a free DOP-C02 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this DOP-C02 question test?
Monitoring and Logging — This question tests Monitoring and Logging — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable S3 Object Lock on the destination S3 bucket in governance mode. — Option A is correct because enabling S3 Object Lock in governance mode on the destination S3 bucket prevents any user, including the root user, from overwriting or deleting CloudTrail log objects during the retention period, ensuring immutability. Option B is correct because enabling log file validation creates a digest file that uses SHA-256 hashing to verify that log files have not been modified, deleted, or tampered with after delivery, providing integrity assurance.
What should I do if I get this DOP-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 →
Keep practising
More DOP-C02 practice questions
- A company uses AWS CodePipeline with a multi-branch strategy. A new feature branch triggers a pipeline that runs unit te…
- A development team uses AWS CodeBuild to compile a Java application and run unit tests. The build takes 30 minutes, but…
- A company uses AWS CodePipeline with multiple stages: Source (Amazon S3), Build (AWS CodeBuild), and Deploy (AWS CodeDep…
- A company uses AWS CodeCommit for source control. Developers frequently push large binary files (e.g., compiled JARs) to…
- An organization uses AWS CodePipeline to orchestrate deployments to multiple environments (dev, test, prod). Each enviro…
- A company uses AWS Key Management Service (KMS) to encrypt data at rest in Amazon S3. The security team wants to ensure…
Last reviewed: Jun 11, 2026
This DOP-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 DOP-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.