Ccna certification Practice Tests

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Appendix 

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  Answers to Practice Test Questions

 94.  B.  The OpenFlow protocol is an open standard used to configure network devices via 

the Southbound interface (SBI) of the software defined networking (SDN) controller. 

Python is a common programming language that is used for the programming of an SDN 

controller via the Northbound interface (NBI) of the SDN controller. Representational 

State Transfer (REST) is an architecture for moving data using the HyperText Transfer 

Protocol (HTTP). JavaScript Object Notation (JSON) is a data-interchange format used 

with many different SDN controllers.