AWS Certified Advanced Networking Specialty 2025 – 400 Free Practice Questions to Pass the Exam

Choosing inbound traffic on port 80 from 0.0.0.0/0 indicates that the configuration allows HTTP traffic from any IP address on the internet. This setting is commonly used for web servers that need to be publicly accessible, enabling users from anywhere to connect to the server using standard web protocols over port 80.

This configuration is typical for public-facing applications, as it maximizes accessibility for end users. The intent is to allow all incoming requests to reach the web service, ensuring that users can access the website without any restrictions based on their IP addresses. Consequently, by allowing traffic from 0.0.0.0/0, the setup is streamlined for general web access, which is essential for a successful online presence.

In environments where security is also a concern, additional layers such as firewalls or web application firewalls (WAF) can be employed to monitor and filter traffic, but the initial ingress rule on port 80 as defined would be wide open to support universal access.