CCSP Cloud Platform and Infrastructure Security Practice Question
A company is deploying a multi-tier application on AWS. They need to protect the application layer from common web attacks and also restrict traffic between tiers. Which TWO network security controls should they use?
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 integrated with Application Load Balancer
AWS WAF protects the application from web exploits, and security groups act as instance-level firewalls to control traffic between tiers. NACLs are subnet-level and less granular.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
PrivateLink for database access
Why it's wrong here
PrivateLink provides private connectivity to services, not a security control for web attacks.
- ✓
AWS WAF integrated with Application Load Balancer
Why this is correct
WAF filters web requests for SQL injection, XSS, etc.
- ✓
Security groups between application tiers
Why this is correct
Security groups control traffic at the instance level.
- ✗
VPC peering with all VPCs
Why it's wrong here
VPC peering connects VPCs, not a security control.
- ✗
Network ACLs for each subnet
Why it's wrong here
NACLs are stateless and less precise for tier-to-tier traffic.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.