Which of the following objects is also known as user-defined objects?

A(n) ________ is a type of file that organizes data in rows and columns

Fill in the blank(s) with correct word

Answer the following statements true (T) or false (F)

1. The SDN application layer maps control layer service requests into specific commands and directives to data plane switches and supplies applications with information about data plane topology and activity. 2. The southbound interface provides a uniform means for application developers and network managers to access SDN services and perform network management tasks. 3. The northbound interface enables applications to access control plane functions and services without needing to know the details of the underlying network switches. 4. The routing function comprises a protocol for collecting information about the topology and traffic conditions of the network and an algorithm for designing routes through the network. 5. The two categories of routing protocols are interior router protocols (IRPs) and exterior router protocols (ERPs).