Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company runs a global gaming application on Amazon EC2 instances behind an Application Load Balancer in the us-east-1 Region. Players in Europe and Asia report high latency and intermittent connection drops. The company wants to improve the application's performance for global users by routing traffic over the AWS global network. The company also needs two static IP addresses that users can whitelist in their firewalls for consistent access, and the solution must provide health checks to automatically route traffic away from unhealthy endpoints. Which AWS service should the company use?
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
Amazon CloudFront
Amazon CloudFront is a content delivery network (CDN) that caches content at edge locations to improve latency. While it can accelerate dynamic content as well, it does not typically provide two dedicated static IP addresses for whitelisting. CloudFront uses a domain name or a set of shared static IPs that are not dedicated to a single customer, and it is optimized for HTTP/HTTPS traffic, not all IP protocols.
B
Best answer
AWS Global Accelerator
AWS Global Accelerator uses the AWS global network to route traffic from users to the closest healthy endpoint. It provides two static anycast IP addresses that serve as fixed entry points, which can be whitelisted in firewalls. It also performs health checks and automatically reroutes traffic away from unhealthy endpoints, making it ideal for global performance improvement and reliable access.
C
Distractor review
AWS WAF
AWS WAF is a web application firewall that protects web applications from common web exploits. It does not provide global acceleration, static IP addresses, or health-check-based routing. It is a security service, not a performance-optimization service.
D
Distractor review
Amazon Route 53
Amazon Route 53 is a DNS service that can route traffic globally using policies like latency-based routing or geolocation routing. However, it does not provide static IP addresses for whitelisting; it resolves domain names to IP addresses, which can be cached by clients and DNS resolvers. Route 53 does not actively route traffic over the AWS global network or provide health-check-based failover for IP-level routing like Global Accelerator does.
Common exam trap
Common exam trap: answer the scenario, not the keyword
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.
Technical deep dive
How to think about this question
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.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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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?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: AWS Global Accelerator — AWS Global Accelerator is designed to improve the performance of global applications by using the AWS global network to route traffic from users to the closest healthy regional endpoint. It provides two static anycast IP addresses that serve as fixed entry points, allowing users to whitelist those IPs. It also performs health checks and automatically reroutes traffic if an endpoint becomes unhealthy. Amazon CloudFront (option A) also uses the AWS global network but provides a domain name (or a set of shared static IPs) and is optimized for HTTP/HTTPS content delivery, not necessarily for arbitrary TCP/UDP traffic like a gaming application might require. AWS WAF (option C) is a web application firewall and does not provide global acceleration or static IPs. Amazon Route 53 (option D) is a DNS service that can route traffic globally, but it does not provide static IP addresses for whitelisting; it uses DNS resolution to direct traffic, which can be cached and does not offer the same level of performance optimization and static IP capability as Global Accelerator.
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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