This SCS-C02 practice question tests your understanding of security logging and monitoring. 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 company needs to monitor for unauthorized S3 bucket deletions. Which CloudWatch Logs metric filter should be used on CloudTrail logs?
eventName = GetBucketAcl
Why wrong: This is a read operation.
eventName = DeleteBucket
DeleteBucket is the API call for deleting a bucket.
eventName = PutBucketPolicy
Why wrong: This changes policy, does not delete the bucket.
eventName = ListBuckets
Why wrong: This is a read operation.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
eventName = DeleteBucket
Option B is correct because the CloudTrail event `DeleteBucket` is logged when an S3 bucket is deleted. By creating a CloudWatch Logs metric filter that matches `eventName = DeleteBucket` on the CloudTrail log group, you can trigger an alarm or automated response to detect unauthorized bucket deletions. This directly addresses the monitoring requirement.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
eventName = GetBucketAcl
Why it's wrong here
This is a read operation.
eventName = DeleteBucket
Why this is correct
DeleteBucket is the API call for deleting a bucket.
Related concept
Read the scenario before looking for a memorised answer.
eventName = PutBucketPolicy
Why it's wrong here
This changes policy, does not delete the bucket.
eventName = ListBuckets
Why it's wrong here
This is a read operation.
Common exam traps
The trap here is that candidates may confuse read-only or policy-modifying events (like `GetBucketAcl`, `PutBucketPolicy`, or `ListBuckets`) with the actual deletion event, failing to recognize that only `DeleteBucket` directly corresponds to bucket removal.
Detailed technical explanation
Under the hood, CloudTrail logs S3 management events like `DeleteBucket` as JSON records in a specified log group. The metric filter pattern `{ $.eventName = "DeleteBucket" }` parses these logs and increments a CloudWatch metric for each matching event. A real-world scenario is detecting a malicious insider or compromised IAM role that deletes critical buckets; the alarm can trigger an SNS notification or Lambda function for immediate investigation.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Security Logging and Monitoring — This question tests Security Logging and Monitoring — Read the scenario before looking for a memorised answer..
The correct answer is: eventName = DeleteBucket — Option B is correct because the CloudTrail event `DeleteBucket` is logged when an S3 bucket is deleted. By creating a CloudWatch Logs metric filter that matches `eventName = DeleteBucket` on the CloudTrail log group, you can trigger an alarm or automated response to detect unauthorized bucket deletions. This directly addresses the monitoring requirement.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This SCS-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 SCS-C02 exam.
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