The answer is that CloudTrail is not logging Lambda Invoke API calls because they are data events, not management events. CloudTrail management events capture control-plane operations like creating or deleting a Lambda function, but the actual Invoke action is a data-plane operation that requires explicit data events logging to be enabled in the trail configuration. On the AWS Certified Security Specialty SCS-C02 exam, this distinction between management and data events is a frequent trap—candidates often assume all API calls are logged by default, but Lambda invocations are excluded unless you specifically configure data events for the function. A common memory tip is to think of management events as “who built the house” and data events as “who opened the door”; CloudTrail logs the construction, not every entry. For your exam, remember that VPC Flow Logs and security groups handle network traffic, not API logging, so always check the trail’s data event settings when Lambda invocations are missing from CloudTrail.
SCS-C02 Threat Detection and Incident Response Practice Question
This SCS-C02 practice question tests your understanding of threat detection and incident response. 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 uses AWS Lambda functions to process data from an S3 bucket. The security team wants to detect any unauthorized attempts to invoke the Lambda function from outside the company's VPC. The Lambda function is configured to be VPC-enabled and is attached to a VPC with a security group. The team has enabled CloudTrail and VPC Flow Logs. However, they are not seeing any logs for the Lambda invocations in CloudTrail. The team has checked that CloudTrail is logging management events and that the Lambda function is being invoked. What is the most likely reason for the missing CloudTrail logs?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
CloudTrail is not logging Lambda Invoke API calls because they are data events, not management events.
Option D is correct because CloudTrail management events do not include Lambda Invoke API calls unless data events are enabled. Option A is wrong because VPC Flow Logs capture network traffic, not Lambda invocations. Option B is wrong because the Lambda function's VPC configuration does not affect CloudTrail logging. Option C is wrong because CloudTrail is not limited by VPC endpoints.
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.
✓
CloudTrail is not logging Lambda Invoke API calls because they are data events, not management events.
Why this is correct
Invoke calls are data events and require enabling data events in CloudTrail.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The Lambda function is not configured to send logs to CloudTrail.
Why it's wrong here
Lambda functions do not send logs to CloudTrail; CloudTrail captures API calls.
✗
The CloudTrail trail is not configured to log data events for Lambda.
Why it's wrong here
CloudTrail management events capture Lambda management calls, but Invoke is a data event.
✗
VPC Flow Logs are not enabled for the Lambda function's VPC.
Why it's wrong here
VPC Flow Logs capture network traffic, not API calls.
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.
What to study next
Got this wrong? Here's your next step.
Identify which SCS-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.
Threat Detection and Incident Response — This question tests Threat Detection and Incident Response — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: CloudTrail is not logging Lambda Invoke API calls because they are data events, not management events. — Option D is correct because CloudTrail management events do not include Lambda Invoke API calls unless data events are enabled. Option A is wrong because VPC Flow Logs capture network traffic, not Lambda invocations. Option B is wrong because the Lambda function's VPC configuration does not affect CloudTrail logging. Option C is wrong because CloudTrail is not limited by VPC endpoints.
What should I do if I get this SCS-C02 question wrong?
Identify which SCS-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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 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.
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.