Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company has been running multiple workloads on AWS for several months. The finance team notices that monthly costs have increased significantly but cannot identify which services or linked accounts are driving the increase. The team needs a tool that provides interactive graphs and filters to visualize cost and usage data over time, allows filtering by service or linked account, and identifies the top cost contributors. They also need to create custom reports that can be emailed on a weekly schedule. Which AWS tool should the finance team use 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 Cost Explorer
Correct. AWS Cost Explorer provides intuitive graphs and filtering to analyze cost and usage data. It allows you to create custom reports and schedule them for regular email delivery, directly addressing the team's needs.
B
Distractor review
AWS Budgets
Incorrect. AWS Budgets is used to set spending limits and send alerts when costs or usage exceed (or are forecasted to exceed) your budget. It does not provide the interactive historical analysis, filtering by service/linked account, or scheduled report emailing features required here.
C
Distractor review
AWS Trusted Advisor
Incorrect. AWS Trusted Advisor offers recommendations to optimize your AWS environment across cost, performance, security, and fault tolerance. However, it does not provide detailed cost visualization or the ability to create and schedule custom cost reports.
D
Distractor review
Amazon QuickSight
Incorrect. Amazon QuickSight is a business intelligence service for creating dashboards and visualizations from various data sources. While it can connect to AWS Cost and Usage Reports, it requires additional configuration and is not the native, out-of-the-box tool for cost analysis that Cost Explorer is. The team can achieve their goals more directly with Cost Explorer.
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 Cost Explorer — AWS Cost Explorer is the correct tool for visualizing, understanding, and managing AWS costs and usage over time. It provides interactive graphs, filtering capabilities (by service, linked account, region, etc.), and the ability to identify top cost drivers. Cost Explorer also supports saving custom reports and scheduling them to be emailed on a recurring basis. AWS Budgets is used for creating alerts when costs exceed thresholds, not for in-depth historical analysis and report scheduling. AWS Trusted Advisor provides best-practice recommendations but does not offer detailed cost visualization and custom report scheduling. Amazon QuickSight is a business intelligence service that can visualize data from various sources, but it is not the native cost analysis tool; it would require additional setup to integrate with AWS cost data, whereas Cost Explorer is purpose-built for this task.
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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