- A
Amazon Route 53
Why wrong: Amazon Route 53 is a DNS service that can route traffic based on various policies (e.g., latency-based, geolocation). However, it does not provide static IP addresses for the application; the IPs of the underlying resources would still be exposed or change over time, and failover is dependent on DNS propagation delays. This does not meet the requirement for fixed static IPs.
- B
AWS Global Accelerator
AWS Global Accelerator uses the AWS global network to direct traffic to the optimal regional endpoint based on health, latency, and geography. It provides two static anycast IP addresses that remain fixed, and supports TCP and UDP. It automatically performs health checks and failover between endpoints across Regions, meeting all stated requirements.
- C
Amazon CloudFront
Why wrong: Amazon CloudFront is a content delivery network (CDN) primarily used for caching and delivering HTTP/HTTPS content. It does not support UDP protocols and does not provide static IP addresses for the origin application; CloudFront provides a domain name and a set of distributed edge locations. While it can be used for failover scenarios, it is not optimized for general TCP/UDP traffic and does not meet the static IP requirement.
- D
Elastic Load Balancing
Why wrong: Elastic Load Balancing (ELB) is a regional service that distributes traffic across targets within a single AWS Region. It does not provide global static IP addresses (unless using a global accelerator) and cannot automatically route across Regions for failover. ELB alone cannot satisfy the global static IP and cross-Region failover needs.
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 critical web application on Amazon EC2 instances in the us-east-1 Region, with a secondary standby deployment in us-west-2 for disaster recovery. The application requires that user traffic be directed to the nearest healthy endpoint, automatically failover to the secondary region if the primary region becomes unavailable, and the company needs two static IP addresses that remain fixed regardless of infrastructure changes. The application uses TCP and UDP protocols. Which AWS service should the company use to meet these requirements?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"primary"Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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 the correct choice because it provides two static anycast IP addresses that remain fixed regardless of infrastructure changes, directs traffic to the nearest healthy endpoint using the AWS global network, and supports automatic failover between regions for both TCP and UDP traffic. It also integrates with Network Load Balancers, Application Load Balancers, or EC2 instances to route traffic to the closest healthy endpoint, meeting all stated requirements.
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 Route 53
Why it's wrong here
Amazon Route 53 is a DNS service that can route traffic based on various policies (e.g., latency-based, geolocation). However, it does not provide static IP addresses for the application; the IPs of the underlying resources would still be exposed or change over time, and failover is dependent on DNS propagation delays. This does not meet the requirement for fixed static IPs.
- ✓
AWS Global Accelerator
Why this is correct
AWS Global Accelerator uses the AWS global network to direct traffic to the optimal regional endpoint based on health, latency, and geography. It provides two static anycast IP addresses that remain fixed, and supports TCP and UDP. It automatically performs health checks and failover between endpoints across Regions, meeting all stated requirements.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon CloudFront
Why it's wrong here
Amazon CloudFront is a content delivery network (CDN) primarily used for caching and delivering HTTP/HTTPS content. It does not support UDP protocols and does not provide static IP addresses for the origin application; CloudFront provides a domain name and a set of distributed edge locations. While it can be used for failover scenarios, it is not optimized for general TCP/UDP traffic and does not meet the static IP requirement.
- ✗
Elastic Load Balancing
Why it's wrong here
Elastic Load Balancing (ELB) is a regional service that distributes traffic across targets within a single AWS Region. It does not provide global static IP addresses (unless using a global accelerator) and cannot automatically route across Regions for failover. ELB alone cannot satisfy the global static IP and cross-Region failover needs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse DNS-based routing (Route 53) with anycast IP-based routing (Global Accelerator), assuming that DNS can provide static IPs and instant failover, but DNS caching and TTL delays make it unsuitable for the requirement of fixed IPs and rapid failover for both TCP and UDP traffic.
Trap categories for this question
Scenario analysis trap
Amazon CloudFront is a content delivery network (CDN) primarily used for caching and delivering HTTP/HTTPS content. It does not support UDP protocols and does not provide static IP addresses for the origin application; CloudFront provides a domain name and a set of distributed edge locations. While it can be used for failover scenarios, it is not optimized for general TCP/UDP traffic and does not meet the static IP requirement.
Detailed technical explanation
How to think about this question
AWS Global Accelerator uses the Anycast routing principle, where the same static IP address is announced from multiple AWS edge locations, allowing traffic to enter the AWS global network at the closest point. Under the hood, it leverages the AWS backbone to route traffic to the optimal endpoint, and it supports both TCP and UDP protocols at the transport layer, unlike CloudFront which only handles HTTP/HTTPS. In a real-world scenario, if the primary region fails, Global Accelerator automatically shifts traffic to the secondary region within seconds by updating the endpoint health status, ensuring minimal disruption for critical applications.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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.
- →
Cloud Technology and Services — study guide chapter
Learn the concepts, then practise the questions
- →
Cloud Technology and Services practice questions
Targeted practice on this topic area only
- →
All CLF-C02 questions
1,024 questions across all exam domains
- →
AWS Certified Cloud Practitioner CLF-C02 study guide
Full concept coverage aligned to exam objectives
- →
CLF-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related CLF-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Cloud Concepts practice questions
Practise CLF-C02 questions linked to Cloud Concepts.
Security and Compliance practice questions
Practise CLF-C02 questions linked to Security and Compliance.
Cloud Technology and Services practice questions
Practise CLF-C02 questions linked to Cloud Technology and Services.
Billing, Pricing, and Support practice questions
Practise CLF-C02 questions linked to Billing, Pricing, and Support.
AWS shared responsibility model practice questions
Practise CLF-C02 questions linked to AWS shared responsibility model.
AWS IAM practice questions
Practise CLF-C02 questions linked to AWS IAM.
AWS pricing practice questions
Practise CLF-C02 questions linked to AWS pricing.
AWS support plans practice questions
Practise CLF-C02 questions linked to AWS support plans.
AWS S3 practice questions
Practise CLF-C02 questions linked to AWS S3.
AWS EC2 practice questions
Practise CLF-C02 questions linked to AWS EC2.
Practice this exam
Start a free CLF-C02 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
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 the correct choice because it provides two static anycast IP addresses that remain fixed regardless of infrastructure changes, directs traffic to the nearest healthy endpoint using the AWS global network, and supports automatic failover between regions for both TCP and UDP traffic. It also integrates with Network Load Balancers, Application Load Balancers, or EC2 instances to route traffic to the closest healthy endpoint, meeting all stated requirements.
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.
Are there clue words in this question I should notice?
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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 →
Keep practising
More CLF-C02 practice questions
- A company publishes a message each time a new product is added to its catalogue. Three services need to receive this mes…
- A media company stores frequently accessed video thumbnails in Amazon S3. The thumbnails are read multiple times every d…
- A company needs a service to translate domain names (like www.example.com) into IP addresses, check the health of their…
- A startup runs an application on AWS and receives a monthly bill that charges exactly for the number of compute hours us…
- A financial institution runs its core banking application on-premises due to regulatory requirements. It has connected i…
- A company wants to run a MySQL database in AWS without managing database software installation, applying patches, settin…
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.