You implement Software Defined Networking (SDN) by using the network Controller server role. You have a virtual network named VNET1 that contains servers used by developers. You need to ensure that only devices from the 192.168.0.0/24 subnet can access the virtual machine in VNET1.
What should you configure?
A . a network security group (NSG)
B . role-based access control
C . a universal security group
D . Dynamic Access Control
Answer: A