Quick Answer
The required resources for ECS Fargate in CloudFormation are the AWS::ECS::Cluster, AWS::ECS::TaskDefinition, and AWS::ECS::Service. These three are essential because the cluster provides the logical grouping for your Fargate tasks, the task definition specifies the container image, CPU, and memory configuration, and the service ensures the desired number of tasks are running and handles scheduling. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your understanding of the minimum resources needed to deploy a Fargate workload, often trapping candidates who mistakenly include a VPC or load balancer as required resources within the template itself. Remember that while a VPC is necessary for Fargate networking, it is typically defined as a separate EC2 resource or imported, not as a direct ECS resource. A useful memory tip is "C-T-S" for Cluster, Task definition, Service—the three core ECS resources that must be present in your template for a functional Fargate deployment.
This SOA-C02 practice question tests your understanding of deployment, provisioning, and automation. 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 SysOps administrator is automating the creation of an Amazon ECS cluster with Fargate launch type using AWS CloudFormation. The template must define the task definition, service, and cluster. Which THREE resources are required to be in the template? (Choose THREE.)
AWS::EC2::VPC
Why wrong: VPC is required but often created outside the template or as a separate resource; not always in the same template.
AWS::ECS::TaskDefinition
Task definition defines the container.
AWS::ECS::Service
Service manages task placement.
AWS::ECS::Cluster
Cluster is required to run tasks.
AWS::ElasticLoadBalancingV2::LoadBalancer
Why wrong: Load balancer is optional.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS::ECS::TaskDefinition
Options A, B, and D are correct. An ECS cluster (A) is required to run tasks. A task definition (B) defines the container specification. A service (D) manages the desired count and scheduling. Option C is wrong because a VPC is not a resource within ECS; it's an EC2 resource but is required for Fargate; however, the question asks for resources that must be in the template, and VPC is typically created separately. Option E is wrong because a load balancer is optional.
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.
AWS::EC2::VPC
Why it's wrong here
VPC is required but often created outside the template or as a separate resource; not always in the same template.
AWS::ECS::TaskDefinition
Why this is correct
Task definition defines the container.
Related concept
Read the scenario before looking for a memorised answer.
AWS::ECS::Service
Why this is correct
Service manages task placement.
Related concept
Read the scenario before looking for a memorised answer.
AWS::ECS::Cluster
Why this is correct
Cluster is required to run tasks.
Related concept
Read the scenario before looking for a memorised answer.
AWS::ElasticLoadBalancingV2::LoadBalancer
Why it's wrong here
Load balancer is optional.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Identify which SOA-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.
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FAQ
Deployment, Provisioning, and Automation — This question tests Deployment, Provisioning, and Automation — Read the scenario before looking for a memorised answer..
The correct answer is: AWS::ECS::TaskDefinition — Options A, B, and D are correct. An ECS cluster (A) is required to run tasks. A task definition (B) defines the container specification. A service (D) manages the desired count and scheduling. Option C is wrong because a VPC is not a resource within ECS; it's an EC2 resource but is required for Fargate; however, the question asks for resources that must be in the template, and VPC is typically created separately. Option E is wrong because a load balancer is optional.
Identify which SOA-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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
This SOA-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 SOA-C02 exam.
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