- A
Enable AWS CloudTrail for all accounts and regions.
Why wrong: CloudTrail records API calls, not application or system logs.
- B
Configure all services to send logs to Amazon S3 and use Amazon Athena for ad-hoc querying.
S3 can serve as a central log repository, and Athena can query logs across tiers using SQL.
- C
Use AWS Config rules to monitor configuration changes across resources.
Why wrong: AWS Config monitors resource configurations, not logs.
- D
Enable VPC Flow Logs to capture network traffic.
Why wrong: VPC Flow Logs capture IP traffic metadata, not application or system logs.
- E
Deploy the unified CloudWatch agent on all EC2 instances to collect system and application logs.
The unified CloudWatch agent can collect logs from EC2 instances and send them to CloudWatch Logs for centralized access.
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 DevOps team is designing a monitoring solution for a multi-tier web application running on AWS. The application consists of an Application Load Balancer, EC2 instances in an Auto Scaling group, and an RDS database. Which TWO approaches provide centralized logging and monitoring across all tiers?
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
Configure all services to send logs to Amazon S3 and use Amazon Athena for ad-hoc querying.
Options B and E are correct. Option B: Sending logs to Amazon S3 and using Athena for ad-hoc queries allows centralized log storage and analysis across all tiers (ALB, EC2, RDS). Option E: Deploying the unified CloudWatch agent on EC2 instances collects system and application logs, sending them to CloudWatch Logs for centralized monitoring. Option A is wrong because CloudTrail only records API calls, not application logs. Option C is wrong because AWS Config monitors resource configuration changes, not operational logs. Option D is wrong because VPC Flow Logs capture only network traffic metadata, not application logs.
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 AWS CloudTrail for all accounts and regions.
Why it's wrong here
CloudTrail records API calls, not application or system logs.
- ✓
Configure all services to send logs to Amazon S3 and use Amazon Athena for ad-hoc querying.
Why this is correct
S3 can serve as a central log repository, and Athena can query logs across tiers using SQL.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use AWS Config rules to monitor configuration changes across resources.
Why it's wrong here
AWS Config monitors resource configurations, not logs.
- ✗
Enable VPC Flow Logs to capture network traffic.
Why it's wrong here
VPC Flow Logs capture IP traffic metadata, not application or system logs.
- ✓
Deploy the unified CloudWatch agent on all EC2 instances to collect system and application logs.
Why this is correct
The unified CloudWatch agent can collect logs from EC2 instances and send them to CloudWatch Logs for centralized access.
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.
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 DOP-C02 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.
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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: Configure all services to send logs to Amazon S3 and use Amazon Athena for ad-hoc querying. — Options B and E are correct. Option B: Sending logs to Amazon S3 and using Athena for ad-hoc queries allows centralized log storage and analysis across all tiers (ALB, EC2, RDS). Option E: Deploying the unified CloudWatch agent on EC2 instances collects system and application logs, sending them to CloudWatch Logs for centralized monitoring. Option A is wrong because CloudTrail only records API calls, not application logs. Option C is wrong because AWS Config monitors resource configuration changes, not operational logs. Option D is wrong because VPC Flow Logs capture only network traffic metadata, not application logs.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-C02 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
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Last reviewed: Jun 20, 2026
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