350-701 Cloud Security Practice Question
A cloud engineer is deploying a web application on AWS and needs to control inbound and outbound traffic at both the instance and subnet levels. Which two AWS security controls should they configure? (Select two.)
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
✓
Security Groups
Security groups act as instance-level firewalls, and NACLs provide stateless subnet-level 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.
- ✗
AWS PrivateLink
Why it's wrong here
PrivateLink provides private connectivity to services.
- ✓
Security Groups
Why this is correct
Security groups are stateful instance-level firewalls.
- ✗
AWS WAF
Why it's wrong here
AWS WAF protects web applications from common exploits at the application layer.
- ✗
AWS Shield
Why it's wrong here
Shield provides DDoS protection, not traffic filtering.
- ✓
Network ACLs (NACLs)
Why this is correct
NACLs are stateless subnet-level firewalls.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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