You create a database that stores data in tables that consist of rows and columns. each row has a primary key, and each column has a unique name. which data model did you use

What is domain name system (dns)? allows dynamic ip address allocation so users do not have to have a preconfigured ip address to use the network converts ip addresses into domains, or identifying labels that use a variety of recognizable naming conventions the efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility not possible with separate infrastructures the integration of communication channels into a single service

How to do this programming flowchart?

In simple terms, how would you define a protocol?