This SAA-C03 practice question tests your understanding of design high-performing architectures. 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 global video platform serves mostly static images and JavaScript files from an S3 origin. Users in distant countries report slow load times. What should improve performance most? The design must avoid adding custom operational scripts.
A larger S3 bucket
Why wrong: Bucket size does not affect user latency.
Amazon CloudFront distribution with the S3 bucket as origin
CloudFront caches content at edge locations close to users, reducing latency.
RDS read replicas
Why wrong: Read replicas do not accelerate static content delivery from S3.
An EC2 Auto Scaling group in one Region
Why wrong: More EC2 instances do not cache static S3 content globally.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Amazon CloudFront distribution with the S3 bucket as origin
Amazon CloudFront is a content delivery network (CDN) that caches static content (images, JavaScript files) at edge locations worldwide. By distributing content closer to users, it reduces latency and improves load times for distant countries without requiring any custom operational scripts or changes to the S3 bucket.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
A larger S3 bucket
Why it's wrong here
Bucket size does not affect user latency.
Amazon CloudFront distribution with the S3 bucket as origin
Why this is correct
CloudFront caches content at edge locations close to users, reducing latency.
Related concept
Read the scenario before looking for a memorised answer.
RDS read replicas
Why it's wrong here
Read replicas do not accelerate static content delivery from S3.
An EC2 Auto Scaling group in one Region
Why it's wrong here
More EC2 instances do not cache static S3 content globally.
Common exam traps
The trap here is that candidates may think increasing S3 bucket size or adding compute resources (EC2, RDS) can solve latency issues, but the correct solution is a CDN like CloudFront that brings content physically closer to users.
Detailed technical explanation
CloudFront uses over 600 Points of Presence (PoPs) globally to cache objects at the edge. When a user requests a file, CloudFront serves it from the nearest edge location if cached, otherwise it fetches from the S3 origin via optimized AWS backbone networks. This reduces round-trip time (RTT) from potentially hundreds of milliseconds to single-digit milliseconds for cached content.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
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FAQ
Design High-Performing Architectures — This question tests Design High-Performing Architectures — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon CloudFront distribution with the S3 bucket as origin — Amazon CloudFront is a content delivery network (CDN) that caches static content (images, JavaScript files) at edge locations worldwide. By distributing content closer to users, it reduces latency and improves load times for distant countries without requiring any custom operational scripts or changes to the S3 bucket.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This SAA-C03 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 SAA-C03 exam.
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