Which of the following is NOT a valid deployment option?

In the context of Check Point's deployment models, several valid options exist, including all-in-one, bridge mode, and distributed configurations. All-in-one refers to a deployment where the security functions are centralized on a single device. Bridge mode allows the firewall to operate transparently between two network segments without altering the data packets, enabling it to monitor traffic without being directly in the path. The distributed deployment spreads security services across multiple machines, which can enhance performance and scalability.

CloudGuard, while an important solution, is specifically aimed at cloud security management rather than being framed as a deployment architecture like the others. It incorporates features and functionalities that assist in securing cloud environments but does not describe a standalone method of deployment. Therefore, within the context of different architectural designs for deploying Check Point solutions, CloudGuard does not fit the criteria as a deployment option.