- A
The Lambda rotation function lacks IAM permissions to update the secret
The Lambda function needs permissions to read and update the secret.
- B
The KMS key used to encrypt the secret is disabled
Why wrong: If the key is disabled, decryption fails, but the error message would indicate that.
- C
The secret is not encrypted
Why wrong: Secrets are always encrypted by default.
- D
The secret is not in the same region as the database
Why wrong: Cross-region secrets are supported.
Question 1,070 of 1,748
Secrets Manager Rotation Failure: Most Likely Cause
This SCS-C02 practice question tests your understanding of data protection. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: aWS Secrets Manager rotation. 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 Secrets Manager to rotate secrets for an RDS database. The rotation fails with an error indicating that the secret cannot be accessed. What is the most likely cause?
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 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
✓
The Lambda rotation function lacks IAM permissions to update the secret
The rotation function must have IAM permissions to read the current secret, update it with new credentials, and modify the database password. If the Lambda function lacks those permissions, it cannot access or update the secret, causing rotation to fail.
Key principle: AWS Secrets Manager rotation
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The Lambda rotation function lacks IAM permissions to update the secret
Why this is correct
The Lambda function needs permissions to read and update the secret.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
AWS Secrets Manager rotation
- ✗
The KMS key used to encrypt the secret is disabled
Why it's wrong here
If the key is disabled, decryption fails, but the error message would indicate that.
- ✗
The secret is not encrypted
Why it's wrong here
Secrets are always encrypted by default.
- ✗
The secret is not in the same region as the database
Why it's wrong here
Cross-region secrets are supported.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often overlook that the Lambda rotation function needs specific IAM permissions to both read/update the secret and modify the database. They may focus on the KMS key or regional issues.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- AWS Secrets Manager rotation
- IAM permissions for rotation
- Rotation error causes
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
AWS Secrets Manager rotation
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Review aWS Secrets Manager rotation, then practise related SCS-C02 questions on the same topic to reinforce the concept.
- →
Data Protection — study guide chapter
Learn the concepts, then practise the questions
- →
Data Protection practice questions
Targeted practice on this topic area only
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AWS Certified Security Specialty SCS-C02 study guide
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FAQ
Questions learners often ask
What does this SCS-C02 question test?
Data Protection — This question tests Data Protection — AWS Secrets Manager rotation.
What is the correct answer to this question?
The correct answer is: The Lambda rotation function lacks IAM permissions to update the secret — The rotation function must have IAM permissions to read the current secret, update it with new credentials, and modify the database password. If the Lambda function lacks those permissions, it cannot access or update the secret, causing rotation to fail.
What should I do if I get this SCS-C02 question wrong?
Review aWS Secrets Manager rotation, then practise related SCS-C02 questions on the same topic to reinforce the concept.
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?
AWS Secrets Manager rotation
About these practice questions
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Same concept, more angles
1 more ways this is tested on SCS-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company uses AWS Secrets Manager to rotate secrets for its RDS database. The rotation fails periodically, and the security team needs to troubleshoot. Which CloudWatch metric should be monitored to detect rotation failures?
hard- A.AWS/KMS: KeyUsage
- ✓ B.AWS/SecretsManager: SecretRotationSucceeded
- C.AWS/Lambda: Invocations
- D.AWS/RDS: DatabaseConnections
Why B: The correct metric to monitor for Secrets Manager rotation failures is `AWS/SecretsManager:SecretRotationSucceeded`. When rotation fails, the `SecretRotationSucceeded` metric reports a value of 0, allowing the security team to set alarms. Option A is incorrect because KMS key usage metrics are not specific to rotation. Option C is incorrect because Lambda invocations may not capture all rotation failures and are not a direct indicator. Option D is incorrect because RDS metrics do not include Secrets Manager rotation status.
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Last reviewed: Jun 20, 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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