Quick Answer
The answer is to create an Amazon RDS database instance separately and configure the application to connect to it, as this is the best practice for managing a relational database in Elastic Beanstalk. Decoupling the database from the Elastic Beanstalk environment ensures the database persists independently of the application lifecycle, meaning it won’t be deleted when the environment is terminated, and it gives you full control over backups, scaling, and maintenance. On the AWS Certified Developer Associate DVA-C02 exam, this concept tests your understanding of production-grade architecture versus quick-start convenience—a common trap is assuming you should add a database directly inside the Elastic Beanstalk environment, which ties its fate to the app. Remember the memory tip: “Separate the data from the deploy” to avoid accidental data loss.
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 wants to deploy an application using AWS Elastic Beanstalk. The application requires a relational database. What is the BEST practice for managing the database?
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.
Create an Amazon RDS database instance separately and configure the application to connect to it.
Decouples database from environment.
Use the Elastic Beanstalk console to add an RDS database to the environment.
Why wrong: Ties database to environment lifecycle.
Use an S3 bucket to store data.
Why wrong: Not a database.
Use Amazon DynamoDB as the database.
Why wrong: Not relational.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create an Amazon RDS database instance separately and configure the application to connect to it.
The best practice for managing a relational database in Elastic Beanstalk is to decouple the database from the application lifecycle by creating an Amazon RDS instance separately. This ensures the database is not deleted when the Elastic Beanstalk environment is terminated, provides better control over backups, scaling, and maintenance, and allows the application to connect via environment variables or configuration files. Using a separate RDS instance aligns with production best practices for durability and operational flexibility.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Create an Amazon RDS database instance separately and configure the application to connect to it.
Why this is correct
Decouples database from environment.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Use the Elastic Beanstalk console to add an RDS database to the environment.
Why it's wrong here
Ties database to environment lifecycle.
Use an S3 bucket to store data.
Why it's wrong here
Not a database.
Use Amazon DynamoDB as the database.
Why it's wrong here
Not relational.
Common exam traps
The trap here is that candidates assume the integrated RDS option in Elastic Beanstalk is the simplest and therefore best approach, but the exam tests the understanding that decoupling the database from the environment lifecycle is the production best practice to avoid accidental data loss.
Detailed technical explanation
When you decouple RDS from Elastic Beanstalk, you typically configure the application to read the database endpoint, port, and credentials from environment properties (e.g., RDS_HOSTNAME, RDS_PORT) set in the Elastic Beanstalk environment or from AWS Secrets Manager. Under the hood, the application uses standard JDBC or ODBC connections over TCP port 3306 (MySQL/MariaDB) or 5432 (PostgreSQL), and the security group of the RDS instance must allow inbound traffic from the Elastic Beanstalk environment's security group. A real-world scenario where this matters is when performing blue/green deployments: the separate RDS instance persists data across environment swaps, avoiding data loss or downtime.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
The correct answer is: Create an Amazon RDS database instance separately and configure the application to connect to it. — The best practice for managing a relational database in Elastic Beanstalk is to decouple the database from the application lifecycle by creating an Amazon RDS instance separately. This ensures the database is not deleted when the Elastic Beanstalk environment is terminated, provides better control over backups, scaling, and maintenance, and allows the application to connect via environment variables or configuration files. Using a separate RDS instance aligns with production best practices for durability and operational flexibility.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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.
Read the scenario before looking for a memorised answer.
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Same concept, more angles
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 is deploying a web application on AWS Elastic Beanstalk. The application requires a relational database. The company wants to decouple the database lifecycle from the environment lifecycle. Which TWO steps should the company take to achieve this? (Choose TWO.)
mediumWhy B: Option B is correct because creating an Amazon RDS DB instance outside of Elastic Beanstalk decouples the database lifecycle from the environment lifecycle. This means the database can be retained, modified, or terminated independently of the Elastic Beanstalk environment, preventing data loss when the environment is terminated or recreated. The application can then connect to the external RDS instance via environment properties passed to the EC2 instances.
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Last reviewed: Jun 24, 2026
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.
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