CCSP Cloud Platform and Infrastructure Security Practice Question
An organization is designing a VPC with multiple tiers. Which TWO network components are used to restrict traffic between subnets?
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
✓
Network ACL (NACL)
Network ACLs (stateless) and Security Groups (stateful) can be applied at subnet and instance level to control traffic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VPC Peering
Why it's wrong here
VPC peering connects different VPCs, not subnets within a VPC.
- ✓
Network ACL (NACL)
Why this is correct
NACLs are stateless firewalls at subnet level.
- ✗
Internet Gateway
Why it's wrong here
Internet gateway allows traffic to/from internet, not between subnets.
- ✗
Route Table
Why it's wrong here
Route tables direct traffic, but do not filter.
- ✓
Security Group
Why this is correct
Security groups are stateful firewalls attached to instances.
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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.