CompTIA Network+ Practice Test

Which of the following describes a cloud application instance with external internet access?

1. Public cloud only

2. Regional cloud service

3. Internet Gateway usage

4. Dedicated physical machine

The correct answer is: Internet Gateway usage

The correct choice pertains to the use of an Internet Gateway, which is fundamental in cloud architecture for enabling external internet access to applications hosted in the cloud. An Internet Gateway serves as a bridge between a cloud environment and the public internet, allowing virtual applications running in the cloud to communicate with external users and other services on the internet. This capability is essential for scenarios where cloud applications need to be accessed by users outside the cloud provider's secure network. Choosing this option reflects an understanding of how cloud networking is configured for global accessibility, typically involving the creation of routing tables and security group rules that leverage gateways to manage traffic effectively. While public cloud services indeed offer external access, the term "public cloud only" is too narrow and does not specifically highlight the mechanism enabling that access. Similarly, a regional cloud service might refer to resources and geographic limitations rather than specifically addressing internet access. The mention of a dedicated physical machine points to an entirely different concept in cloud computing, typically aligned with private cloud infrastructure, and does not inherently relate to the access capabilities provided by a cloud service with an Internet Gateway.