The REST API accepts and returns HTTP (not enabled by default) or HTTPS messages that contain
JavaScript Object Notation (JSON) or Extensible Markup Language (XML) documents. You can use
any programming language to generate the messages and the JSON or XML documents that
contain the API methods or Managed Object (MO) descriptions.
Reference:
x/rest_cfg/2_1_x/b_Cisco_APIC_REST_API_Configuration_Guide/b_Cisco_APIC_REST_API_Config
uration_Guide_chapter_01.html

The top SD-WAN benefits are:
+ Increased bandwidth at a lower cost
+ Centralized management across branch networks
+ Full visibility into the network
+ Providing organizations with more connection type options and vendor selection when building a network.
Reference:
-> We can provision endpoints (vEdges) through a centralized router vManage -> Answer D is correct.
Answer A is not correct as we can use different kind of connections on SD-WAN: MPLS, LTE, 4G, xDSL, Internet
connections...
Application-Aware Routing policy is configured in vManage as a centralized data policy that maps the service-
side application(s) to specific SLA requirements. The centralized policies provisioned in vSmart controller is pushed
to relevant WAN Edge devices for enforcement. The defined policy consists of match-action pairs, where the match
statement defines the application-list or the type of traffic to match, and the action statement defines the SLA
action the WAN Edge devices must enforce for the specified traffic.