In VMware Cloud Foundation (VCF) 5.2, isolated domains within a single NSX management pane

(i.e., a single NSX Manager cluster) require a solution that provides logical isolation without

additional management overhead. Option A, "An NSX VPC" (Virtual Private Cloud), is the correct

choice as it enables tenant-specific isolated networking environments within a single NSX instance,

managed via the same NSX Manager. Introduced in NSX-T 3.2 (supported in VCF 5.2), NSX VPCs allow

segmentation with dedicated routing, security policies, and resource allocation, meeting the

isolation requirement efficiently. Option B, "A Shared NSX Instance," implies no isolation,

contradicting the requirement. Option C, "NSX Federation," supports multi-site management with

multiple NSX Managers, exceeding the single-pane constraint. Option D, "A 1:1 NSX Instance,"

suggests a dedicated NSX Manager per domain, also violating the constraint. NSX VPC is explicitly

designed for this use case in VCF.

Reference: VMware Cloud Foundation 5.2 Networking Guide, Section on NSX-T VPCs; NSX-T 3.2

Administration Guide, Chapter on Virtual Private Clouds.