- A
Deploy the application in multiple Regions and use Amazon Route 53 latency-based routing with active-passive failover.
Why wrong: This requires multi-Region deployment, increasing operational overhead; Route 53 DNS resolution adds latency.
- B
Create an Amazon CloudFront distribution with Lambda@Edge to proxy requests to the ALB.
Why wrong: Lambda@Edge is for lightweight edge computing, not for proxying API traffic; it adds complexity and potential latency.
- C
Create an AWS Global Accelerator accelerator with the ALB as an endpoint.
Global Accelerator uses the AWS global network and anycast IPs to route traffic to the nearest healthy endpoint, reducing latency without multi-Region deployment.
- D
Create an Amazon CloudFront distribution with the ALB as the origin.
Why wrong: CloudFront adds caching which is not suitable for dynamic APIs; it also adds latency for uncached requests.
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. 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 is designing a global application that requires a highly available and low-latency API. The API will be consumed by clients across the world. The backend consists of an Application Load Balancer (ALB) in front of an Auto Scaling group of EC2 instances in a single AWS Region. The company wants to improve performance for global users. Which solution meets these requirements with minimal operational overhead?
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
Create an AWS Global Accelerator accelerator with the ALB as an endpoint.
AWS Global Accelerator uses the AWS global network to route user traffic to the optimal endpoint, reducing latency and improving availability. By using the ALB as an endpoint, it provides static anycast IP addresses and automatically reroutes traffic if the ALB becomes unhealthy, all with minimal operational overhead since it requires no changes to the application or additional infrastructure.
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.
- ✗
Deploy the application in multiple Regions and use Amazon Route 53 latency-based routing with active-passive failover.
Why it's wrong here
This requires multi-Region deployment, increasing operational overhead; Route 53 DNS resolution adds latency.
- ✗
Create an Amazon CloudFront distribution with Lambda@Edge to proxy requests to the ALB.
Why it's wrong here
Lambda@Edge is for lightweight edge computing, not for proxying API traffic; it adds complexity and potential latency.
- ✓
Create an AWS Global Accelerator accelerator with the ALB as an endpoint.
Why this is correct
Global Accelerator uses the AWS global network and anycast IPs to route traffic to the nearest healthy endpoint, reducing latency without multi-Region deployment.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create an Amazon CloudFront distribution with the ALB as the origin.
Why it's wrong here
CloudFront adds caching which is not suitable for dynamic APIs; it also adds latency for uncached requests.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse CloudFront (a CDN optimized for cacheable content) with Global Accelerator (a network layer service for improving performance of non-cacheable, dynamic traffic), leading them to choose Option D without realizing that CloudFront adds latency for uncacheable API requests.
Detailed technical explanation
How to think about this question
AWS Global Accelerator leverages the Anycast IP addresses at AWS edge locations, which route traffic over the AWS global network backbone rather than the public internet, reducing jitter and packet loss. It also provides TCP termination at the edge, enabling faster retransmits and connection establishment, and it supports health checks with a 10-second interval for rapid failover. This is particularly beneficial for real-time APIs, gaming, or financial trading applications where every millisecond of latency matters.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an AWS Global Accelerator accelerator with the ALB as an endpoint. — AWS Global Accelerator uses the AWS global network to route user traffic to the optimal endpoint, reducing latency and improving availability. By using the ALB as an endpoint, it provides static anycast IP addresses and automatically reroutes traffic if the ALB becomes unhealthy, all with minimal operational overhead since it requires no changes to the application or additional infrastructure.
What should I do if I get this SAP-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.
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Last reviewed: Jul 4, 2026
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