SCS-C02 Infrastructure Security Practice Question
A company has a VPC with public and private subnets. The private subnets need to access the internet for software updates. Which component should be added to the VPC to enable this?
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
✓
NAT gateway
(NAT gateway). A NAT gateway enables instances in a private subnet to initiate outbound traffic to the internet for tasks like software updates, while preventing inbound traffic from the internet. Option A (Internet gateway) is incorrect because it is used for public subnets to allow direct internet access. Option B (VPN connection) is used for secure connectivity to an on-premises network, not for outbound internet access. Option C (VPC peering connection) is used to connect two VPCs, not to provide internet access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Internet gateway
Why it's wrong here
An internet gateway is used for public subnets; private subnets do not have direct internet access.
- ✗
VPN connection
Why it's wrong here
A VPN connection is for connecting on-premises networks to the VPC.
- ✗
VPC peering connection
Why it's wrong here
VPC peering connects VPCs, not for internet access.
- ✓
NAT gateway
Why this is correct
A NAT gateway enables outbound internet access for private subnets.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SCS-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 SCS-C02 exam.