18. A Chief Information Officer wants to ensure that network devices cannot connect to the public Internet and the local network to directly perform firmware updates. The IT team must manually perform the update process by using a portable device. Which of the following architecture types best fits this description?
Answer: B
B) Air-gapped
An air-gapped architecture is designed to isolate network devices from external networks, including the public Internet and local networks. This isolation ensures that devices cannot directly access online resources for firmware updates, aligning perfectly with the requirement that the IT team must manually perform updates using a portable device.
A) Microservices
Microservices architecture involves breaking down applications into smaller, independent services that can communicate over a network. This option does not provide the necessary isolation from the Internet or local networks, making it unsuitable for the requirement of manual updates without direct connectivity.
B) Air-gapped
As previously mentioned, an air-gapped architecture effectively isolates devices from external networks, preventing unauthorized connections. This architecture is specifically tailored to environments where security is paramount, such as in the scenario described where firmware updates must be conducted manually.
C) Software-defined networking
Software-defined networking (SDN) focuses on managing networks through software applications for improved control and flexibility. However, it does not inherently provide the isolation necessary to prevent network devices from connecting to the Internet or local networks, thus failing to meet the requirements of the question.
D) Serverless
Serverless architecture allows developers to build and run applications without managing servers. While it offers scalability and efficiency, it does not address the need for network isolation as specified in the question, making it an inappropriate choice for ensuring secure firmware updates.
Conclusion
The air-gapped architecture is the only option that meets the requirements of preventing network devices from connecting to external networks while mandating manual firmware updates. Other options, such as microservices, software-defined networking, and serverless architectures, do not provide the necessary isolation, thereby failing to fulfill the described scenario effectively.