Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A startup is planning to build and launch a new mobile application on AWS. The team expects very low initial traffic but hopes to scale rapidly. They have a limited budget and want to avoid any upfront costs. They are unsure which AWS services they will need and want to estimate their monthly AWS charges before committing to an architecture. Additionally, they need access to technical support to help troubleshoot issues that arise during development and production, with a guaranteed response time of less than 12 hours for production-impacting issues. Which combination of AWS tool and support plan should the startup choose to meet these requirements?
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
Best answer
AWS Pricing Calculator + Developer Support
Correct. The AWS Pricing Calculator lets you estimate monthly costs for AWS services before building the architecture. The Developer Support plan offers a response time of less than 12 hours for production issues that impair the system, which meets the stated requirement. This combination is cost-effective for a startup with limited budget.
B
Distractor review
AWS Cost Explorer + Basic Support
Incorrect. AWS Cost Explorer is used to analyze historical cost and usage data, not to estimate future costs for an unbuilt architecture. Basic Support does not include technical support, so the startup would not get any guaranteed response time for production issues.
C
Distractor review
AWS Budgets + Business Support
Incorrect. AWS Budgets is used to set cost alerts and track spending against budgets, not to estimate initial costs before building. Business Support offers faster response times (e.g., 1 hour for production system down) but is more expensive than Developer Support and provides more than what is required for a startup with limited budget.
D
Distractor review
AWS Total Cost of Ownership (TCO) Calculator + Enterprise Support
Incorrect. The TCO Calculator compares the cost of running infrastructure on-premises vs. on AWS, which is not relevant for a startup that does not have existing on-premises infrastructure. Enterprise Support is the highest tier with a designated Technical Account Manager and is very expensive, far beyond the needs of a small startup with limited budget.
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 Pricing Calculator + Developer Support — The AWS Pricing Calculator allows users to estimate monthly costs for various AWS services without actually provisioning resources, making it ideal for a startup that is unsure about its architecture and wants to avoid upfront costs. The Developer Support plan provides technical support with a response time of less than 12 hours for production issues that impair the system, which matches the startup's needs at a lower cost than Business or Enterprise support plans. Other options either do not provide cost estimation before usage (Cost Explorer, Budgets, TCO Calculator) or do not offer the required level of technical support (Basic Support) or are overly expensive (Business, Enterprise).
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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