Which statement about a Cisco APIC controller versus a more traditional SDN controller is true?

Which statement about a Cisco APIC controller versus a more traditional SDN controller is true?
A . APIC does support a Southbound REST API
B . APIC supports OpFlex as a Northbound protocol
C . APIC uses a policy agent to translate policies into instructions
D . APIC uses an imperative model

View Answer

Answer: C

Explanation:

The southbound protocol used by APIC is OpFlex that is pushed by Cisco as the protocol for policy enablement across physical and virtual switches. Southbound interfaces are implemented with some called Service Abstraction Layer (SAL), which talks to the network elements via SNMP and CLI.

Note: Cisco OpFlex is a southbound protocol in a software-defined network (SDN).