Question 1mediummulti select
Full question →mediummulti selectObjective-mapped
A marketing site serves versioned JavaScript and CSS files from Amazon S3 through CloudFront. Origin bandwidth costs are rising because CloudFront keeps revalidating objects and fetching too much content from the bucket. Which two changes most directly improve cache hit ratio and reduce origin load? Select two.
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Use versioned object names and long cache TTLs for immutable assets.
Versioned file names let you cache content aggressively because each new build gets a new URL and does not overwrite the old one.
B
Distractor review
Forward all cookies and query strings so each request is treated as unique.
Forwarding everything usually lowers cache hit ratio because CloudFront sees more unique cache keys and reuses objects less often.
C
Best answer
Configure a cache policy that excludes unnecessary cookies, query strings, and headers.
A focused cache policy keeps the cache key small, so CloudFront can reuse the same cached object across more viewer requests.
D
Distractor review
Switch the bucket to S3 Intelligent-Tiering to reduce CloudFront origin requests.
Intelligent-Tiering can reduce storage cost, but it does not improve CloudFront cache behavior or reduce origin fetch frequency.
E
Distractor review
Add more NAT Gateways to improve the speed of CloudFront origin fetches.
CloudFront does not use your VPC NAT Gateways for origin caching behavior, so this does not address the problem.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A team needs to distribute TCP traffic (not HTTP) across multiple services. The services must see the original client source IP for auditing. Which AWS load balancer is the best fit?
Question 2
A team wants to run containerized services with AWS-managed orchestration and autoscaling. They do NOT require Kubernetes compatibility. Which AWS service choice is most appropriate to meet these goals?
Question 3
A solutions architect is designing an S3 bucket for a IoT ingestion API. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure? The design must avoid adding custom operational scripts.
Question 4
A solutions architect is designing an S3 bucket for a claims portal. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?
Question 5
A team wants to delegate IAM management to developers, but must ensure developers can never grant themselves permissions beyond a specific limit. Which AWS mechanism best matches this requirement?
Question 6
A solutions architect is designing an S3 bucket for a healthcare document service. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?
FAQ
Questions learners often ask
What does this SAA-C03 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Use versioned object names and long cache TTLs for immutable assets. — CloudFront cache efficiency improves most when object URLs are immutable and when the cache key is kept as small as possible. Versioned file names with long TTLs allow CloudFront to serve the same object repeatedly without revalidation. A cache policy that excludes unnecessary cookies, query strings, and headers also prevents needless cache fragmentation. Those two changes directly increase hit ratio and reduce origin load. Why others are wrong: Forwarding all cookies and query strings makes the cache key more specific, which usually reduces reuse. S3 Intelligent-Tiering helps storage cost, not edge caching behavior. NAT Gateways are unrelated to CloudFront origin cache efficiency, so adding them does not reduce origin fetches.
What should I do if I get this SAA-C03 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
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