Why does an Internet Gateway not perform network address translation (NAT) for instances in a public subnet?

hard📝 Conceptual Q10 of 15

AWS - VPC Fundamentals

ABecause NAT is handled by the route table.

BBecause instances in a public subnet have public IPs and communicate directly with the internet.

CBecause the Internet Gateway only routes traffic within the VPC.

DBecause Internet Gateway encrypts traffic instead of translating addresses.

Step-by-Step Solution

Solution:

Step 1: Understand Internet Gateway function
IGW provides a target for internet traffic but does not modify IP addresses.
Step 2: Understand NAT role
NAT translates private IPs to public IPs; public subnet instances already have public IPs.
Final Answer:
Because instances in a public subnet have public IPs and communicate directly with the internet. -> Option B
Quick Check:
IGW does not do NAT; public IPs enable direct internet access [OK]

Quick Trick: IGW routes traffic; NAT is separate and for private IP translation [OK]

Common Mistakes:

Master "VPC Fundamentals" in AWS

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More AWS Quizzes