CompTIA Network+ Practice Test

What is often a necessary action to connect private resources to the public internet in a cloud environment?

1. Use of a public IP address

2. Implementation of a gateway service

3. Application of firewall rules

4. Installation of physical routers

The correct answer is: Implementation of a gateway service

Connecting private resources in a cloud environment to the public internet typically requires the implementation of a gateway service. This gateway serves as an access point that facilitates communication between private networks and the external internet. It can manage traffic flow, apply policies, and ensure secure connections, allowing services hosted in private subnets to be reachable from the public network. Using a public IP address is a consideration for accessing resources but may not necessarily be sufficient on its own without the right infrastructure to route and secure the traffic properly. Firewall rules are important for controlling access and protecting resources, but they function at the perimeter rather than serving as the mechanism that allows for the initial connection to the internet. Installation of physical routers is generally not a necessity in cloud environments, as most cloud providers abstract network hardware management, using virtual networking solutions instead.