SAP-C02 Design for New Solutions Practice Question
A company is deploying a new web application that uses Amazon S3 to store static content and Amazon CloudFront for content delivery. The application also uses an API Gateway with Lambda for backend logic. The company wants to protect the API from common web exploits like SQL injection and cross-site scripting. Which AWS service should be added to the architecture?
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
✓
AWS WAF
AWS WAF integrates with API Gateway and CloudFront to protect against web exploits like SQL injection and cross-site scripting. Option A: Amazon GuardDuty is for threat detection, not inline protection. Option B: Amazon Inspector is for vulnerability assessment. Option C: AWS Shield Advanced provides DDoS protection, not application-layer filtering.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon GuardDuty
Why it's wrong here
GuardDuty is a threat detection service, not a web application firewall.
- ✗
Amazon Inspector
Why it's wrong here
Inspector is for vulnerability assessments, not real-time protection.
- ✗
AWS Shield Advanced
Why it's wrong here
Shield Advanced is for DDoS protection, not for web application firewalling.
- ✓
AWS WAF
Why this is correct
WAF can block SQL injection and XSS attacks.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 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 SAP-C02 exam.