Amazon CloudFront

Global content delivery network and reverse proxy for cacheable HTTP content, dynamic acceleration, origin protection, and edge security integrations.

Key points

Cache keys, TTLs, headers, cookies, and query strings determine cache efficiency and correctness.
CloudFront can reduce origin load and transfer while improving user latency, but uncacheable traffic still reaches origins.
Use origin access controls, TLS, WAF, and Shield integrations to preserve the intended edge security boundary.

Best-known use cases

Deliver static S3 assets globally.
Accelerate and protect web/API origins through the AWS edge.

What candidates often confuse it with

CloudFront caches/proxies HTTP traffic; Global Accelerator carries supported TCP/UDP without caching.
CloudFront delivers traffic; Route 53 returns DNS routing answers.

Key takeaway

Choose CloudFront when HTTP edge proxying, caching, or origin protection is the key requirement.

Related services

Amazon S3
AWS WAF
AWS Shield
Amazon Route 53

Relevant exam tasks

D2.1
D3.4
D4.4

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Amazon CloudFront

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Exam Weights

Exam snapshot

SAA-C03 at a glance

Category: Associate
Duration: 130 minutes
Questions: 65 total; 50 scored and 15 unidentified unscored
Formats: Multiple choice and multiple response
Scoring: 100–1,000 scaled score; 720 minimum passing score

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Exam fidelity: AWS documents 65 questions in 130 minutes: 50 scored and 15 unidentified unscored, using multiple-choice and multiple-response formats. This site's practice accuracy and readiness do not reproduce AWS's 100–1,000 scaled scoring or identify unscored items. Difficulty labels describe this site's Associate-level scenario complexity, not an AWS-published question rating.

Reference

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Study links

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Official AWS resources

SAA-C03 official exam guide

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AWS Solutions Architect - Associate certification

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AWS Skill Builder SAA-C03 Exam Prep Plan

Official SAA-C03 preparation plan and entry point for AWS exam-prep learning resources.