- A
Define a custom platform version in the Elastic Beanstalk environment's configuration using a platform definition file.
CORRECT: Defining a custom platform version with a platform definition file is the first step to register the platform with Elastic Beanstalk.
- B
Set the environment's platform to 'Custom' and provide the S3 URL of the platform artifacts.
Why wrong: incorrect: The environment's platform is specified by a platform ARN, not by selecting 'Custom' and providing an S3 URL. The platform version resource must be created first.
- C
Create a Dockerfile in the application source bundle to define the custom platform.
Why wrong: incorrect: A Dockerfile is not used for custom platforms; custom platforms are built using Packer and a platform definition file. Dockerfiles are for Docker platforms.
- D
Specify the custom platform ARN in the environment's configuration.
CORRECT: After creating the platform version, you must specify its ARN in the environment configuration to use it.
- E
Upload the Packer template to the Elastic Beanstalk console.
Why wrong: incorrect: The Packer template is used to build the platform artifacts, but it is not uploaded to the console. The platform version resource references the artifacts stored in S3.
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 developer is deploying a web application using AWS Elastic Beanstalk. The application requires a custom platform that is not provided by Elastic Beanstalk. The developer has created a custom platform using the Packer tool and has stored the platform artifacts in an Amazon S3 bucket. Which TWO steps are necessary to use this custom platform in Elastic Beanstalk? (Choose TWO.)
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
Define a custom platform version in the Elastic Beanstalk environment's configuration using a platform definition file.
Options A and D are correct. To use a custom platform in Elastic Beanstalk, the developer must first define a custom platform version in the environment's configuration using a platform definition file (option A). This file specifies the platform metadata and points to the artifacts stored in S3. Then, the developer must specify the custom platform ARN in the environment's configuration (option D) to associate the environment with that platform version. Option B is incorrect because the environment's platform is set by specifying a platform ARN, not by setting it to 'Custom' and providing an S3 URL directly. Option C is incorrect because a custom platform is defined by a Packer-based platform definition file, not by a Dockerfile; Dockerfiles are used for Docker platforms, not custom platforms. Option E is incorrect because the Packer template is used to build the custom platform artifacts, but it is not uploaded to Elastic Beanstalk; instead, the platform version resource points to the artifacts stored in S3.
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.
- ✓
Define a custom platform version in the Elastic Beanstalk environment's configuration using a platform definition file.
Why this is correct
CORRECT: Defining a custom platform version with a platform definition file is the first step to register the platform with Elastic Beanstalk.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Set the environment's platform to 'Custom' and provide the S3 URL of the platform artifacts.
Why it's wrong here
incorrect: The environment's platform is specified by a platform ARN, not by selecting 'Custom' and providing an S3 URL. The platform version resource must be created first.
- ✗
Create a Dockerfile in the application source bundle to define the custom platform.
Why it's wrong here
incorrect: A Dockerfile is not used for custom platforms; custom platforms are built using Packer and a platform definition file. Dockerfiles are for Docker platforms.
- ✓
Specify the custom platform ARN in the environment's configuration.
Why this is correct
CORRECT: After creating the platform version, you must specify its ARN in the environment configuration to use it.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Upload the Packer template to the Elastic Beanstalk console.
Why it's wrong here
incorrect: The Packer template is used to build the platform artifacts, but it is not uploaded to the console. The platform version resource references the artifacts stored in S3.
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 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.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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: Define a custom platform version in the Elastic Beanstalk environment's configuration using a platform definition file. — Options A and D are correct. To use a custom platform in Elastic Beanstalk, the developer must first define a custom platform version in the environment's configuration using a platform definition file (option A). This file specifies the platform metadata and points to the artifacts stored in S3. Then, the developer must specify the custom platform ARN in the environment's configuration (option D) to associate the environment with that platform version. Option B is incorrect because the environment's platform is set by specifying a platform ARN, not by setting it to 'Custom' and providing an S3 URL directly. Option C is incorrect because a custom platform is defined by a Packer-based platform definition file, not by a Dockerfile; Dockerfiles are used for Docker platforms, not custom platforms. Option E is incorrect because the Packer template is used to build the custom platform artifacts, but it is not uploaded to Elastic Beanstalk; instead, the platform version resource points to the artifacts stored in S3.
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.
About these practice questions
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Last reviewed: Jun 20, 2026
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