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. A key principle to apply: cloudFront uses edge locations to cache content globally.. 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 mobile game backend 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.
RDS read replicas
Why wrong: Read replicas do not accelerate static content delivery from S3.
Amazon CloudFront distribution with the S3 bucket as origin
CloudFront caches content at edge locations close to users, reducing latency.
A larger S3 bucket
Why wrong: Bucket size does not affect user latency.
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 at edge locations worldwide, reducing latency for users in distant countries by serving files from the nearest edge. Using the S3 bucket as the origin, CloudFront distributes the content globally without requiring any custom operational scripts, directly addressing the slow load times for static assets.
Key principle: CloudFront uses edge locations to cache content globally.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
RDS read replicas
Why it's wrong here
Read replicas do not accelerate static content delivery from S3.
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
CloudFront uses edge locations to cache content globally.
A larger S3 bucket
Why it's wrong here
Bucket size does not affect user latency.
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 confuse database read replicas (Option A) with content delivery, not realizing that static asset acceleration requires a CDN like CloudFront, not a database scaling solution.
Detailed technical explanation
CloudFront leverages over 600 Points of Presence (PoPs) globally, using HTTP/2 and TCP optimizations like TLS 1.3 and connection reuse to minimize latency. When a user requests a static file, CloudFront checks its edge cache first; if a cache miss occurs, it fetches the file from the S3 origin over AWS’s private backbone network, then caches it at the edge for subsequent requests. This architecture reduces round-trip time from potentially hundreds of milliseconds to single-digit milliseconds for cached content.
Key takeaway
CloudFront uses edge locations to cache content globally.
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
Review cloudFront uses edge locations to cache content globally., then practise related SAA-C03 questions on the same topic to reinforce the concept.
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FAQ
Design High-Performing Architectures — This question tests Design High-Performing Architectures — CloudFront uses edge locations to cache content globally..
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 at edge locations worldwide, reducing latency for users in distant countries by serving files from the nearest edge. Using the S3 bucket as the origin, CloudFront distributes the content globally without requiring any custom operational scripts, directly addressing the slow load times for static assets.
Review cloudFront uses edge locations to cache content globally., then practise related SAA-C03 questions on the same topic to reinforce the concept.
CloudFront uses edge locations to cache content globally.
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Last reviewed: Jun 11, 2026
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