Which two uses of the YANG data modeling language are true? (Choose two)

Which two uses of the YANG data modeling language are true? (Choose two)
A . It can be used to shape slats data of network elements
B . It can be used to access a device by HTTP
C . It can be used to model the configuration used by NETCONF operations
D . It can be used to replace the OSI model for troubleshooting
E . It can be used to replace RESTCONF as a mechanism to install and manipulate configuration

Answer: A,B