Final answer:
The Network-Based Interfaces (NBIs) are protocols or frameworks that enable communication and interaction between different components in a network. RESTCONF, OnePK, and OpFlex are examples of NBIs.
Step-by-step explanation:
The Network-Based Interfaces (NBIs) are protocols or frameworks that enable communication and interaction between different components in a network. Among the options provided, the NBIs are:
RESTCONF: A protocol that allows the management of network devices using Representational State Transfer (REST) principles.
OnePK: A software development toolkit by Cisco that provides an API for network programmability.
OpFlex: A protocol developed by Cisco that enables flexible and policy-based communication between network devices and controllers.
On the other hand, OSGi is a dynamic module system for Java that allows modular development and deployment of applications but it is not an NBI as stated in the question.