This DVA-C02 practice question tests your understanding of deployment. 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 developer is deploying a serverless application using the AWS Serverless Application Model (SAM). The developer wants to ensure that the Lambda function's environment variables are encrypted at rest. What is the most straightforward way to achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
No action needed; SAM automatically encrypts environment variables at rest using a default KMS key.
Option A is correct because SAM automatically enables encryption at rest for environment variables using AWS KMS. Option B is wrong because the encryption is done by default. Option C is wrong because manual KMS key creation is not required for default encryption. Option D is wrong because the serverless function handler does not affect encryption.
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.
✓
No action needed; SAM automatically encrypts environment variables at rest using a default KMS key.
Why this is correct
SAM uses AWS managed keys to encrypt environment variables by default.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable encryption in the SAM template using the 'Encrypt' property.
Why it's wrong here
There is no 'Encrypt' property; encryption is automatic.
✗
Modify the Lambda function's code to encrypt environment variables before deployment.
Why it's wrong here
Environment variables are encrypted at rest automatically; code modification is unnecessary.
✗
Create a customer managed KMS key and specify it in the SAM template.
Why it's wrong here
While you can use a custom key, it's not the most straightforward way.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which DVA-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.
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: No action needed; SAM automatically encrypts environment variables at rest using a default KMS key. — Option A is correct because SAM automatically enables encryption at rest for environment variables using AWS KMS. Option B is wrong because the encryption is done by default. Option C is wrong because manual KMS key creation is not required for default encryption. Option D is wrong because the serverless function handler does not affect encryption.
What should I do if I get this DVA-C02 question wrong?
Identify which DVA-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.
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This DVA-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 DVA-C02 exam.
Question Discussion
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