A global organization with cloud networks deployed in several AWS regions wants to set up...

Regional Deployment:

For a global organization with cloud networks in multiple AWS regions, a separate FortiGate Cloud-Native Firewall (CNF) instance is required for each AWS region to provide localized protection and meet compliance requirements. This ensures that each region has its own dedicated NGFW protection tailored to its specific needs (Option B).

Multi-Account Association:

FortiGate CNF supports associating multiple AWS accounts with a single CNF instance. This feature is beneficial for organizations that operate in a multi-account setup, allowing centralized management and security policies across different accounts (Option C).

Other Options Analysis:

Option A is incorrect because AWS Firewall Manager is a different service and is not required to provision a CNF instance.

Option D is incorrect because a single CNF instance cannot protect multiple AWS regions due to regional isolation in AWS.

References:

FortiGate CNF Documentation: FortiGate CNF

AWS Multi-Account Best Practices:AWS Multi-Account