Match each AWS CloudFormation concept to its description.
Drag a concept onto its matching description — or click a concept then click the description.
Collection of AWS resources managed as a single unit
JSON or YAML document describing AWS resources
Preview of changes before applying to a stack
Enables stack creation across multiple accounts and regions
Identifies differences between stack and actual resource configurations
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Change Set: A preview of how changes to a stack will be applied
Change Set previews stack changes; Stack is a resource collection; Stack Set manages stacks across accounts; Template is a JSON/YAML description.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Change Set: A preview of how changes to a stack will be applied
Why this is correct
A Change Set is a generated summary of the modifications that would be applied to an existing CloudFormation stack if a given template change were executed. It lists each affected resource and its action (Add, Modify, Remove), and also flags potentially disruptive changes like resource replacement, allowing you to validate updates before committing. Executing a change set performs the actual stack update, while discarding it makes no change to the stack.
Stack: A collection of AWS resources that can be managed as a single unit
Why this is correct
A CloudFormation stack is a logical grouping of AWS resources that are provisioned, updated, and deleted together as a single lifecycle unit based on the definitions in a template. Because resources are managed collectively, stack operations such as update-rollback or deletion ensure that dependencies between resources are handled consistently, and the stack's status reflects the aggregate state of all its resources. This is the fundamental operational object named in the question, not the template document that describes it.
Stack Set: A JSON or YAML text file that describes the infrastructure
Why it's wrong here
This option incorrectly describes a Template. In CloudFormation, a Stack Set is actually an administrative entity that stores the template and configuration used to create, update, or delete stacks across multiple accounts and AWS regions, known as stack instances. The text "JSON or YAML text file that describes the infrastructure" fits a Template, which is a declarative document listing resources and properties, not the manager of multi-account deployments.
Template: Allows you to create, update, or delete stacks across multiple accounts and regions
Why it's wrong here
This option incorrectly describes a Stack Set. A Template is a declarative JSON or YAML document that describes the AWS resources to be created and their properties, parameters, and other configuration. It does not perform actions; instead, CloudFormation interprets the template to create a stack, and it is the Stack Set (not the template) that enables managing identical stacks across multiple accounts and regions through stack instances.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DOP-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 DOP-C02 exam.