- A
Amazon CloudFront
Why wrong: 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
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
AWS WAF
Why wrong: 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
Amazon Route 53
Why wrong: 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.
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
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
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS Global Accelerator
AWS Global Accelerator is correct because it uses the AWS global network to route traffic from users to the application, reducing latency and jitter by avoiding the public internet. It provides two static anycast IP addresses that remain consistent for firewall whitelisting, and it integrates with health checks to automatically reroute traffic away from unhealthy EC2 endpoints behind the Application Load Balancer.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon CloudFront
Why it's wrong here
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.
- ✓
AWS Global Accelerator
Why this is correct
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.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS WAF
Why it's wrong here
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.
- ✗
Amazon Route 53
Why it's wrong here
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 traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Amazon CloudFront's edge caching with Global Accelerator's network path optimization, assuming CloudFront can provide static IPs and accelerate any TCP/UDP traffic, but CloudFront only accelerates HTTP/HTTPS and does not offer static IP addresses for whitelisting.
Detailed technical explanation
How to think about this question
AWS Global Accelerator uses anycast IP addresses, meaning the same IP address is advertised from multiple AWS edge locations, so traffic automatically enters the AWS global network at the nearest edge point and travels over the AWS backbone to the application, bypassing internet congestion. It supports both TCP and UDP traffic, which is critical for gaming applications that rely on real-time UDP communication, and it provides health checks at the edge to instantly shift traffic to healthy endpoints without relying on DNS TTL propagation.
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.
TExam Day Tips
- 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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — 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 correct because it uses the AWS global network to route traffic from users to the application, reducing latency and jitter by avoiding the public internet. It provides two static anycast IP addresses that remain consistent for firewall whitelisting, and it integrates with health checks to automatically reroute traffic away from unhealthy EC2 endpoints behind the Application Load Balancer.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 11, 2026
This CLF-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 CLF-C02 exam.
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