- A
Define all microservices in a single task definition and run them as one service
Why wrong: Couples all microservices together.
- B
Use a single ECS service with multiple containers per task definition
Why wrong: Containers in a task share lifecycle and cannot scale independently.
- C
Use a single CodePipeline that builds all microservices together
Why wrong: A single pipeline couples deployments.
- D
Define each microservice as a separate ECS service with its own task definition
Separate services allow independent deployment and scaling.
- E
Use a separate CodePipeline for each microservice that builds and deploys independently
Separate pipelines enable independent releases.
Question 502 of 1,616
DVA-C02 Deployment Practice Question
This DVA-C02 practice question tests your understanding of deployment. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which TWO approaches can a developer use to automate the deployment of a microservices application to Amazon ECS with Fargate, ensuring that each microservice is independently deployable and can scale based on demand?
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 each microservice as a separate ECS service with its own task definition
Option D is correct because defining each microservice as a separate ECS service with its own task definition allows independent deployment, scaling, and lifecycle management. Each service can be updated, rolled back, or scaled based on its own demand without affecting other microservices, which aligns with microservices architecture principles.
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 all microservices in a single task definition and run them as one service
Why it's wrong here
Couples all microservices together.
- ✗
Use a single ECS service with multiple containers per task definition
Why it's wrong here
Containers in a task share lifecycle and cannot scale independently.
- ✗
Use a single CodePipeline that builds all microservices together
Why it's wrong here
A single pipeline couples deployments.
- ✓
Define each microservice as a separate ECS service with its own task definition
Why this is correct
Separate services allow independent deployment and scaling.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Use a separate CodePipeline for each microservice that builds and deploys independently
Why this is correct
Separate pipelines enable independent releases.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'multiple containers per task' (which still couples them) with 'separate services' (which decouples them), leading them to choose Option B as a valid approach for independent deployment.
Detailed technical explanation
How to think about this question
Under the hood, each ECS service with Fargate manages its own task definition, which includes the container image, CPU/memory allocation, and networking configuration. Independent CodePipelines for each microservice enable separate build, test, and deploy stages, allowing canary deployments or blue/green deployments per service. In a real-world scenario, a high-traffic payment service can scale to 100 tasks while a low-traffic logging service runs only 2 tasks, without resource contention.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
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 each microservice as a separate ECS service with its own task definition — Option D is correct because defining each microservice as a separate ECS service with its own task definition allows independent deployment, scaling, and lifecycle management. Each service can be updated, rolled back, or scaled based on its own demand without affecting other microservices, which aligns with microservices architecture principles.
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: Jul 4, 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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