- A
Use the .ebextensions configuration files with environment-specific snippet files
Why wrong: Incorrect. While .ebextensions can configure instances, they are not the simplest way to set environment-specific values without code changes; environment properties are more straightforward.
- B
Use environment properties in the Elastic Beanstalk console
Correct. Environment properties are defined per environment and injected as environment variables into the instances, enabling different configurations across environments.
- C
Use Amazon RDS within Elastic Beanstalk
Why wrong: Incorrect. Amazon RDS is a database service, not a method to pass configuration values to the application.
- D
Use AWS Systems Manager Parameter Store with an IAM instance profile
Why wrong: Incorrect. While Parameter Store is a valid way to manage secrets, it requires additional setup and code changes; environment properties are a simpler built-in solution for non-sensitive environment-specific values.
Quick Answer
The answer is to use Elastic Beanstalk environment properties. This is correct because environment properties allow you to inject configuration values like database connection strings directly into your application at deployment time without hardcoding them in the code. Each Elastic Beanstalk environment—development, staging, or production—can have its own unique set of these properties, which the application retrieves as system environment variables, keeping sensitive data both environment-specific and secure. On the AWS Certified Developer Associate DVA-C02 exam, this question tests your understanding of decoupling configuration from code, a core Twelve-Factor App principle. A common trap is confusing environment properties with AWS Systems Manager Parameter Store or Secrets Manager; while those are valid for secrets, the simplest, most direct method for per-environment variables in Elastic Beanstalk is the built-in environment properties feature. Memory tip: think of environment properties as "per-env key-value pairs" that your app reads at runtime, not build time.
DVA-C02 Deployment Practice Question
This DVA-C02 practice question tests your understanding of deployment. 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 Elastic Beanstalk to deploy a web application. The application requires a database connection string that is different for each environment (development, staging, production). The developer wants to set these values without hardcoding them in the application code. Which configuration method should the developer use?
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
Use environment properties in the Elastic Beanstalk console
Option B is correct because Elastic Beanstalk environment properties allow you to inject configuration values (like database connection strings) into your application at deployment time without hardcoding them. These properties are set per environment in the Elastic Beanstalk console or via CLI, and the application retrieves them as environment variables, making them environment-specific and secure.
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.
- ✗
Use the .ebextensions configuration files with environment-specific snippet files
Why it's wrong here
Incorrect. While .ebextensions can configure instances, they are not the simplest way to set environment-specific values without code changes; environment properties are more straightforward.
- ✓
Use environment properties in the Elastic Beanstalk console
Why this is correct
Correct. Environment properties are defined per environment and injected as environment variables into the instances, enabling different configurations across environments.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use Amazon RDS within Elastic Beanstalk
Why it's wrong here
Incorrect. Amazon RDS is a database service, not a method to pass configuration values to the application.
- ✗
Use AWS Systems Manager Parameter Store with an IAM instance profile
Why it's wrong here
Incorrect. While Parameter Store is a valid way to manage secrets, it requires additional setup and code changes; environment properties are a simpler built-in solution for non-sensitive environment-specific values.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often overcomplicate the solution by choosing AWS Systems Manager Parameter Store (Option D) for secret management, but the question specifically asks for a configuration method within Elastic Beanstalk's native features, where environment properties are the simplest and most direct approach for non-sensitive, environment-specific values.
Detailed technical explanation
How to think about this question
Elastic Beanstalk environment properties are exposed as environment variables to the application process, allowing the code to read them via standard OS calls (e.g., `process.env.DB_CONNECTION` in Node.js). Under the hood, these properties are stored in the environment's configuration and injected into the EC2 instances at launch, ensuring consistency across all instances in the environment. A real-world scenario where this matters is when you have a multi-environment pipeline (dev, staging, prod) and need to switch database endpoints without rebuilding the application artifact.
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 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.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this DVA-C02 question test?
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: Use environment properties in the Elastic Beanstalk console — Option B is correct because Elastic Beanstalk environment properties allow you to inject configuration values (like database connection strings) into your application at deployment time without hardcoding them. These properties are set per environment in the Elastic Beanstalk console or via CLI, and the application retrieves them as environment variables, making them environment-specific and secure.
What should I do if I get this DVA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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