This CCSP practice question tests your understanding of cloud application security. 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.
An organization deploys a serverless application using AWS Lambda functions that access an RDS database. Which practice best ensures that the database credentials are protected?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS Systems Manager Parameter Store with KMS encryption and IAM roles
Option B is correct because AWS Systems Manager Parameter Store, combined with AWS KMS for encryption and IAM roles for access control, provides a secure, auditable, and managed way to store and retrieve database credentials. This approach avoids embedding secrets in code or environment variables, and it integrates natively with AWS Lambda via the IAM execution role, ensuring that only authorized functions can decrypt and access the credentials.
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.
✗
Store credentials in the function code
Why it's wrong here
Storing credentials in code is insecure.
✓
Use AWS Systems Manager Parameter Store with KMS encryption and IAM roles
Why this is correct
Parameter Store with KMS and IAM roles provides secure storage and access control.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Hardcode credentials in environment variables
Why it's wrong here
Hardcoded environment variables are not securely managed.
✗
Use database temporary tokens generated on the fly
Why it's wrong here
Temporary tokens are not commonly used for Lambda-RDS.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'temporary tokens' (Option D) with a secure credential storage method, but the CCSP exam expects you to recognize that managing the initial secret (the token's root of trust) is still required, and Parameter Store with KMS is the definitive best practice for protecting static credentials in serverless architectures.
Detailed technical explanation
How to think about this question
Under the hood, AWS Systems Manager Parameter Store can store secrets as SecureString parameters, which are encrypted using a customer-managed KMS key (CMK) or the default AWS managed key. The Lambda function's IAM execution role must include permissions for `ssm:GetParameter` and `kms:Decrypt` on the specific parameter and KMS key, enabling fine-grained access control. In a real-world scenario, this pattern also supports automatic rotation of secrets via AWS Secrets Manager, which can be integrated with Parameter Store to rotate RDS credentials without code changes, reducing the risk of stale or compromised secrets.
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 developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
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.
Cloud Application Security — This question tests Cloud Application Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use AWS Systems Manager Parameter Store with KMS encryption and IAM roles — Option B is correct because AWS Systems Manager Parameter Store, combined with AWS KMS for encryption and IAM roles for access control, provides a secure, auditable, and managed way to store and retrieve database credentials. This approach avoids embedding secrets in code or environment variables, and it integrates natively with AWS Lambda via the IAM execution role, ensuring that only authorized functions can decrypt and access the credentials.
What should I do if I get this CCSP question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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 CCSP practice question is part of Courseiva's free ISC2 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 CCSP 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.