Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company is deploying a new web application on AWS. The operations team needs to provision and manage AWS resources such as Amazon EC2 instances, Amazon RDS databases, and Amazon S3 buckets in a repeatable, consistent manner across development, test, and production environments. The team wants to define the entire infrastructure as code using declarative templates that can be version-controlled and reviewed. Which AWS service should the team use to meet this requirement?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
AWS Elastic Beanstalk
AWS Elastic Beanstalk is a platform as a service (PaaS) that simplifies application deployment and scaling. However, it abstracts the underlying resources and does not provide a declarative template language for defining all infrastructure components in a reusable, version-controlled manner. It is not the primary service for infrastructure as code.
B
Best answer
AWS CloudFormation
AWS CloudFormation is the correct service. It enables you to define and provision AWS infrastructure using declarative templates. You can version control these templates, review them, and deploy consistent environments across development, test, and production. This is the ideal solution for infrastructure as code on AWS.
C
Distractor review
AWS OpsWorks
AWS OpsWorks is a configuration management service that uses Chef and Puppet to automate server configuration. While it can help manage existing infrastructure, it does not provide a declarative template language to provision a wide range of AWS resources in a repeatable infrastructure-as-code manner. CloudFormation is the appropriate service for that task.
D
Distractor review
AWS CodeDeploy
AWS CodeDeploy automates the deployment of application code to Amazon EC2 instances, AWS Lambda, or on-premises servers. It does not handle the provisioning of infrastructure resources like EC2 instances, RDS databases, or S3 buckets. CodeDeploy is a deployment tool, not an infrastructure provisioning tool.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer needs to launch a test server for a new application prototype. The developer logs into the AWS Management Console, selects an Amazon EC2 instance type, configures the security group, and starts the instance. The instance is running within two minutes, and the developer did not need to submit a formal request to the company's IT procurement team or wait for approval from a cloud administrator. Which essential characteristic of cloud computing does this scenario best demonstrate?
Question 2
A solutions architect is planning a new web application on AWS. The workload will include 3 Amazon EC2 instances (t3.medium) running 24/7, an Application Load Balancer, and an Amazon RDS for MySQL db.t3.small database. The architect needs to estimate the monthly cost for the first year, considering different purchasing options (On-Demand, 1-year All Upfront Reserved Instance, and Compute Savings Plan). Which AWS tool should the architect use to create this estimate?
Question 3
A company's development team frequently needs temporary test environments. A developer can log into the AWS Management Console, select an Amazon EC2 instance type, configure storage, and launch the instance within minutes without any interaction with the IT infrastructure team. This capability is an example of which essential characteristic of cloud computing?
Question 4
A company's finance team needs to analyze AWS spending in detail. They require a report that includes hourly cost data for each AWS service, each individual resource (e.g., a specific EC2 instance), and any cost allocation tags applied. The team plans to export this data to an Amazon S3 bucket and then import it into a custom business intelligence (BI) analytics dashboard. Which AWS tool should the finance team use to generate this level of detailed cost data?
Question 5
A company uses AWS for its development environment. The finance team wants to set a monthly budget of $10,000. They want to receive an email notification when the actual costs reach 80% of the budget ($8,000) and again when costs exceed the budget. The team needs a managed AWS service that can automatically send these alerts without requiring custom code or third-party tools. Which AWS service should the team use?
Question 6
A company uses AWS Organizations to manage multiple accounts. The security team needs to enforce a policy that restricts SSH access (port 22) from the internet (0.0.0.0/0) in all VPCs across all accounts. The team wants to centrally define the allowed rules and automatically apply them to newly created VPCs and security groups, while also automatically remediating any existing non-compliant security groups. Which AWS service should the team use?
FAQ
Questions learners often ask
What does this CLF-C02 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: AWS CloudFormation — AWS CloudFormation is the correct service because it allows you to define your entire AWS infrastructure as code using declarative templates (JSON or YAML). These templates can be version-controlled, reviewed, and reused to provision identical resources across multiple environments, ensuring consistency and reducing manual errors. AWS Elastic Beanstalk (option A) is a platform as a service that automates application deployment but does not give you fine-grained control over all resources and is not primarily an infrastructure-as-code tool. AWS OpsWorks (option C) is a configuration management service that uses Chef or Puppet, but it is not designed for provisioning arbitrary AWS resources via declarative templates; CloudFormation is the AWS native solution. AWS CodeDeploy (option D) handles automated application deployments to compute services, not the provisioning of the underlying infrastructure.
What should I do if I get this CLF-C02 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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