Which action sets Layer 2 loop migration in an ACI Fabric with a Layer 2 Out configured?

Which two actions extend a Layer 2 domain beyond the ACI fabric? (Choose two.)

When configuring Cisco ACI VMM domain integration with VMware vCenter, which object is created in vCenter?

A customer implements RBAC on a Cisco APIC using a Windows RADIUS server that is configured with network control policies. The APIC is as follows:
Tenant = TenantX
Security Domain = Tenantx-SD
User = X
The customer requires User X to have access to TenantX only, without any extra privilege in the Cisco ACI fabric domain. Which Cisco AV pair must be implemented on the RADIUS server to meet these requirement?

An engineer is implementing a Cisco ACI data center network that includes Cisco Nexus 2000 Series 10G fabric extenders. Which physical topology is supported?
A)

B)

C)

D)